Asaoya Yaichi

タグ: Kurouchi

  • Japanese Knife Christmas Gift: 5 Beautiful Choices from a Professional Chef

    Japanese Knife Christmas Gift: 5 Beautiful Choices from a Professional Chef

    Asaoya Yaichi X’mas Sale

    Christmas is approaching, and finding the perfect gift for someone special is not always easy.

    A Japanese knife can make a wonderful Christmas present. It is not simply a kitchen tool, but something that can be used, appreciated, and treasured for many years.

    After more than 25 years working as a professional chef, I have used many different Japanese knives. Some have impressed me with their cutting performance, others with their craftsmanship, and some simply because they are beautiful to look at.

    Today, I would like to introduce five Japanese knives from Asaoya Yaichi that I personally recommend as Christmas gifts.

    These are not necessarily the five most expensive knives in our collection. They are five choices I genuinely believe would make wonderful presents.

    Of course, choosing a knife for someone else is not always straightforward. Everyone has different cooking habits, preferences, and levels of experience.

    That is why I have considered not only appearance but also practicality, maintenance, and the type of person who might enjoy each knife.

    Our limited-time Christmas Sale begins on Wednesday, 14 October 2026, at 12:00 AM (Queensland time), so this is also a good opportunity to introduce some of the knives available at Asaoya Yaichi.

    If you would like to explore our collection, please visit our Japanese Knives Australia collection⁠.

    Japanese Knife Christmas Gift No. 1 — 180mm Santoku VG10N 33 Layer Damascus Green Marble Handle Rainbow Spacer


    View more details on our website

    My first recommendation is one of the most beautiful knives in our collection.

    The 180mm Santoku VG10N 33 Layer Damascus features an elegant Damascus blade and a distinctive green marble-style handle decorated with a colourful spacer.

    What makes this series particularly special is its limited availability.

    Our supplier, Ishizuchi Kanamono Seisakusho, receives only small quantities from the blacksmith responsible for producing these knives.

    At Asaoya Yaichi, we currently have four different variations available, featuring red, orange, yellow, and blue spacers.

    We have only one knife available in each colour.

    The 180mm Santoku is also a practical choice for everyday cooking.

    Personally, I believe 180mm is a very comfortable size for home kitchens. It is long enough for most everyday preparation while remaining manageable for people who may find a larger Gyuto slightly intimidating.

    Vegetables, meat, and fish can all be prepared comfortably with this type of knife.

    Another advantage is the VG10N stainless steel blade. Compared with traditional carbon steel, it is relatively easy to maintain because of its corrosion resistance.

    Of course, even stainless steel knives should always be cleaned and dried properly.

    For someone who enjoys cooking and appreciates beautiful kitchen tools, I believe this would make an exceptional Christmas present.

    Personally, I find the combination of the Damascus blade and colourful handle particularly attractive.

    It is certainly one of my favourites.

    Japanese Knife Christmas Gift No. 2 — 180mm Santoku Aogami #2 Green Micarta Handle with Turquoise Spacer


    View more details on our website

    My second recommendation has a completely different character.

    This 180mm Santoku features Aogami #2 carbon steel, a beautiful green Micarta handle, and a striking turquoise spacer.

    Like my first recommendation, this knife comes from a blacksmith whose work is available only in limited quantities through our supplier.

    Personally, I find the combination of the deep green handle and turquoise spacer particularly beautiful.

    There is something about its appearance that reminds me of the Japanese aesthetic of wabi-sabi, an appreciation of simplicity, character, and understated beauty.

    However, the real attraction of this knife is not just its appearance.

    Aogami #2 is a traditional Japanese carbon steel appreciated for its cutting performance and sharpening characteristics.

    Over the years, I have used several different carbon steel knives in professional kitchens, and I still enjoy the feeling of a well-maintained carbon steel edge.

    There is something satisfying about using a knife that requires a little care but rewards that attention with excellent cutting performance.

    However, carbon steel is not necessarily the best choice for everyone.

    Unlike stainless steel, Aogami #2 can develop patina and rust if it is left wet or poorly maintained.

    For that reason, I would recommend this knife to someone who already understands basic knife maintenance or genuinely enjoys looking after their kitchen tools.

    If you are interested in learning more about the differences between Japanese knife steels, I have discussed this subject in my article about Japanese Knife Steel.

    For the right person, this knife offers a wonderful combination of traditional Japanese steel and contemporary design.

    Japanese Knife Christmas Gift No. 3 — VG10 Polished Hammered 67 Layer Damascus Green Handle Series


    View more details on our website!

    My third recommendation is particularly interesting because it offers the opportunity to create a matching knife set.

    This beautiful VG10 series features a polished hammered finish, 67-layer Damascus construction, and elegant green handles.

    At Asaoya Yaichi, we offer three different knives from this collection: a 180mm Santoku, a 210mm Gyuto, and a 135mm Petty.

    All three are attractive knives individually, but I think they become even more interesting when considered as Christmas gifts.

    For example, combining a Santoku with a Petty would make a beautiful and practical present for someone who enjoys cooking at home.

    The Santoku can handle most everyday food preparation, while the smaller Petty is useful for more delicate work.

    Alternatively, a 210mm Gyuto and 135mm Petty would be an excellent combination for someone who prefers a slightly longer main knife.

    Personally, I do not think most home cooks need both a Santoku and a Gyuto from the same series.

    Their uses overlap considerably, and I would rather recommend two knives that complement each other.

    After working in professional kitchens for more than 25 years, I have come to appreciate the importance of choosing knives according to the work they actually need to perform.

    A larger collection is not necessarily a better collection.

    In fact, two carefully selected knives can be more useful than several knives that perform almost identical tasks.

    I have previously shared my thoughts on different Japanese knife shapes, including the versatility of the Gyuto, in my article Japanese Knife Shapes: 5 Powerful Lessons From 25 Years.

    Another reason I like this series as a Christmas gift is its appearance.

    The matching green handles and Damascus blades create a beautiful combination, particularly when two knives are presented together.

    For someone who enjoys cooking regularly, I believe this would be a thoughtful and practical gift that could be appreciated for many years.

    Japanese Knife Christmas Gift No. 4 — Ginsan Nashiji Forged Magnolia Octagonal Handle Buffalo Horn


    View more details on our website!

    My fourth recommendation is for someone who appreciates the traditional appearance of Japanese knives.

    This series features Ginsan stainless steel, a Nashiji blade finish, and a traditional octagonal magnolia wood handle with a buffalo horn ferrule.

    The appearance is unmistakably Japanese.

    Personally, I find the simplicity of this design particularly appealing.

    Unlike the colourful handles of my earlier recommendations, this series has a more traditional character.

    There is no need for elaborate decoration. The forged blade, textured finish, and natural wooden handle already give the knife a beautiful presence.

    At Asaoya Yaichi, we offer four different knives from this collection: a 210mm Gyuto, 180mm Santoku, 165mm Nakiri, and 120mm Petty.

    Once again, combining two complementary knives could make a wonderful Christmas present.

    For example, a Santoku and Petty would provide a versatile combination for everyday home cooking.

    A Gyuto and Petty would also be an excellent choice for someone who prefers a longer main knife.

    Alternatively, someone who enjoys preparing vegetables might appreciate the traditional appearance and specialised shape of the Nakiri.

    Ginsan is an interesting steel because it combines good corrosion resistance with cutting and sharpening characteristics appreciated by many Japanese knife enthusiasts.

    For someone who likes traditional Japanese knives but does not want the additional maintenance associated with carbon steel, I think Ginsan is well worth considering.

    I have previously written about this steel in my article about Ginsan Steel.

    The Nashiji finish is another distinctive feature of this series.

    Nashiji literally refers to a pear-skin-like texture, and it gives the blade a traditional, understated appearance.

    If you would like to learn more about this finish, you can also read What Does Nashiji Mean on a Japanese Knife?

    If the person receiving your gift appreciates traditional Japanese craftsmanship, this series would certainly be worth considering.

    Japanese Knife Christmas Gift No. 5 — 180mm Kiritsuke Aogami #2 Kurouchi Walnut Octagonal Handle


    View more details on our website!

    My final recommendation is a little different.

    If I were choosing a Japanese knife as a Christmas gift for a professional chef, this would be one of my strongest candidates.

    The 180mm Kiritsuke Aogami #2 Kurouchi features traditional carbon steel, a black forged finish, and a walnut octagonal handle.

    Its appearance is simple, powerful, and unmistakably Japanese.

    I previously wrote an article explaining which knife I would choose if I could use only one knife in my professional kitchen.

    My answer was a Kiritsuke.

    That is how highly I regard its versatility.

    In my daily work at a sushi counter, I need a knife that can handle different ingredients and cutting tasks efficiently.

    The pointed tip of a Kiritsuke is useful for precise work, while the blade can handle many everyday preparation tasks.

    Of course, no single knife is perfect for absolutely everything.

    However, I have always appreciated knives that allow me to work comfortably without constantly changing tools.

    Although I particularly recommend this knife for professional chefs, I would also be delighted to see home cooks enjoying it.

    For anyone who finds 180mm slightly too long, we also offer a 165mm version.

    The shorter blade may feel more comfortable for someone who prefers a compact knife.

    Because this knife uses Aogami #2 carbon steel, it requires proper cleaning, drying, and maintenance.

    The black Kurouchi finish gives it a beautiful traditional appearance, but it does not eliminate the need to care for the exposed carbon steel.

    For someone who appreciates traditional Japanese knives, however, that responsibility can become part of the enjoyment of ownership.

    I have written more about my personal preference for this knife shape in Kiritsuke — The Knife I Would Choose If I Could Own Only One.

    For an experienced cook or professional chef, I believe this would be a particularly memorable Christmas gift.

    Which Japanese Knife Christmas Gift Would I Personally Choose?

    After introducing these five recommendations, you might be wondering which one I would personally choose.

    The answer depends entirely on the person receiving the gift.

    If I were choosing a knife for someone who had never owned a Japanese knife before, I would probably start with the VG10N Damascus Santoku or the VG10 hammered Damascus series.

    Both offer beautiful designs, practical blade shapes, and relatively straightforward maintenance.

    For someone who appreciates traditional Japanese craftsmanship, I would strongly consider the Ginsan Nashiji series.

    Its appearance is beautifully Japanese, and its stainless steel blade makes it a practical choice for everyday use.

    For an experienced cook who enjoys traditional carbon steel, the Aogami #2 Santoku or Kurouchi Kiritsuke would be particularly appealing.

    Personally, I have always believed that choosing a knife should begin with understanding how it will be used.

    A professional chef and someone who cooks occasionally at home may have completely different requirements.

    Even two professional chefs can have very different preferences.

    That is why I do not believe there is one perfect knife for everyone.

    The best Japanese Knife Christmas Gift is not necessarily the most expensive knife or the one with the most elaborate design.

    It is the knife that suits the person receiving it.

    After more than 25 years working in professional kitchens, that is still one of the most important lessons I would share.

    Christmas Sale Begins Wednesday, 14 October 2026!

    Our limited-time Christmas Sale officially begins at 12:00 AM on Wednesday, 14 October 2026 (Queensland time).

    This is a wonderful opportunity to discover our carefully selected range of authentic Japanese knives.

    Some of the knives featured in today’s article are available in very limited quantities.

    In particular, our VG10N 33 Layer Damascus Rainbow Spacer series currently has only one knife available in each colour.

    Once these knives are sold, we cannot guarantee when the same models will become available again.

    If you are considering a Japanese knife as a Christmas present this year, I encourage you to explore our collection before the sale begins.

    At Asaoya Yaichi, we carefully select Japanese knives that we believe offer genuine quality, beautiful craftsmanship, and lasting value.

    Whether you are purchasing your first Japanese knife, choosing a present for someone special, or adding another knife to your own collection, I hope you find something that brings enjoyment to your kitchen.

    A carefully chosen Japanese knife can become much more than a Christmas present.

    It can become a trusted kitchen companion for many years to come.

    👉 Explore more:
    Asaoya Yaichi Blog⁠

    👉 Visit our online store:
    Asaoya Yaichi Online Store⁠

    Thank you for reading, and I hope to see you again in the next story.

    —————————————————​

    Where to See and Buy Our Knives

    Our Partner Stores

    Chanoyu — Nerang, Gold Coast

    Visit Chanoyu and See Our Japanese Knives

    If you are on the Gold Coast, we would love you to visit Chanoyu, a Japanese café in Nerang where you can see and purchase a selection of Asaoya Yaichi knives in person.

    Chanoyu is a lovely place to slow down and enjoy Japanese-inspired food, excellent matcha, coffee and handmade desserts. Its warm, peaceful atmosphere makes it a pleasure to visit, whether you are stopping in for breakfast, lunch or something sweet. We are delighted that our knives have a place there.

    Visit Chanoyu: Shop 6A, 54–58 Nerang Street, Nerang QLD 4211

    Opening hours: Monday to Saturday, 7:00 am–2:00 pm; closed Sunday

    Website: https://www.chanoyucafe.com/

    Instagram: https://www.instagram.com/chanoyugc/

    The selection of knives on display may change. If you are interested in a particular Asaoya Yaichi knife, please contact us through https://asaoyayaichi.com.au before visiting, and we will help you check whether it is available at Chanoyu.

  • Authentic Japanese Knives — Why True Craftsmanship Deserves Fair Value

    Authentic Japanese Knives — Why True Craftsmanship Deserves Fair Value

    Ishizuchi Kanamono Manufactory

    Authentic Japanese Knives are often discussed in terms of sharpness, steel, performance and craftsmanship. But behind every genuine handmade knife is something that is much harder to see: the years of knowledge, experience and dedication required to make it.

    Price matters. I understand that completely. A more affordable knife can make Japanese knives accessible to more people, especially those buying their first serious kitchen knife. There is nothing wrong with offering good value, and there is nothing wrong with occasional sales or promotions.

    But I believe there is an important difference between making a good knife more accessible and allowing genuine craftsmanship to become a permanent race toward the lowest possible price.

    At Asaoya Yaichi, that distinction matters to me.

    👉 Visit our online store:
    https://asaoyayaichi.com.au

    Authentic Japanese Knives Are More Than Products


    180mm Santoku VG10N 33 Layer Damascus Green Marble Handle Rainbow Spacer Orange

    When we pick up a handmade Japanese knife, we see the finished blade. We do not immediately see the years it took the craftsman to develop the skills required to make it.

    Forging, heat treatment, grinding, sharpening and finishing all require experience. The final knife represents not only materials and labour, but knowledge passed down and refined over generations.

    That is why I believe Authentic Japanese Knives should be valued for more than their specifications.

    👉 INTERNAL LINK: “Hand-Forged vs Machine-Made Japanese Knives”

    This does not mean that an expensive knife is automatically a better knife. I have worked in professional kitchens for more than 25 years, and I know very well that price alone does not determine how useful a knife will be.

    👉 INTERNAL LINK: “Is an Expensive Japanese Knife Really Worth It?”

    But there is a difference between questioning whether a knife is worth its price and expecting genuine craftsmanship to continually become cheaper.

    Fair Value Does Not Mean Never Having a Sale


    210mm Sujihiki Aogami #2 Kurouchi Magnolia Handle

    I think this distinction is important.

    A seasonal promotion, special offer or occasional discount can help someone experience a good Japanese knife for the first time. A retailer may choose to reduce its own margin for many different reasons.

    That does not change the underlying value of the craftsmanship.

    What concerns me is not discounting itself. It is the idea that authentic handmade products should always compete by becoming cheaper than the next seller.

    If price becomes the main battlefield, eventually someone in the chain has to absorb that pressure.

    And I do not want that pressure to continually move towards the people actually making the knives.

    Authentic Japanese Knives Exist Because Craftsmen Still Make Them


    180mm Santoku Aogami #2 Green Micarta Handle with Turquoise Spacer

    Today, Japanese-style knives are produced around the world. Many are affordable, and some are perfectly good kitchen tools.

    There is room for them.

    But genuine Japanese craftsmanship exists because there are still people willing to spend years learning how to forge, heat treat, grind and finish blades.

    👉 INTERNAL LINK: “Tosa Knives and Kurouchi — Why the Black Finish Became So Common”

    Traditional craftsmanship cannot survive on admiration alone.

    People can tell craftsmen that their work is beautiful, important and culturally valuable. But if the profession cannot provide a sustainable future, eventually fewer people may be willing to dedicate their lives to learning it.

    The Future of Authentic Japanese Knives Depends on the Next Generation


    180mm Kiritsuke Aogami #2 Kurouchi Walnut Octagonal Handle

    This is where the subject becomes much bigger than the price of one knife.

    Preserving Japanese knife making is not simply about keeping old techniques alive today. Someone has to learn those techniques tomorrow.

    👉 INTERNAL LINK: 流通 | Tosa Knife History: 5 Surprising Ways Tosa Blades Spread Across Japan

    I want young people to be able to look at a respected blacksmith and think:

    “I want to become like that person.”

    For that to happen, craftsmanship must offer more than respect. It must also offer the possibility of building a meaningful and sustainable career.

    If a young apprentice can see that an exceptional craftsman is recognised around the world, that their knives are valued, and that their name itself carries meaning, becoming a blacksmith can become something to aspire to.

    That matters because without a next generation, even centuries of tradition can eventually stop.

    I also believe that achieving this future is not the responsibility of blacksmiths alone. Those of us who sell Japanese knives have a role to play as well.

    Rather than seeing each other only as competitors, perhaps knife retailers can collectively help raise the appreciation and value of genuine Japanese craftsmanship. We may run different businesses, carry different knives and approach the market in different ways, but ultimately, a stronger appreciation for authentic Japanese knives can help support the craftsmen and the tradition we all depend on.

    I Want Craftsmen’s Names to Carry Value


    165mm Usuba A8 Hammered Damascus Black & Red Octagonal Handle

    One of my hopes for Japanese knives is that the finest examples will increasingly be viewed in the same way we appreciate fine watches, jewellery and other forms of exceptional craftsmanship.

    Not because a kitchen knife should become something too precious to use.

    Quite the opposite. A great knife should be used.

    But we can use something every day while still respecting the person who created it.

    In the world of fine craftsmanship, the maker’s name can become part of the object’s value. I would like to see more Japanese blacksmiths receive that same recognition.

    I want people to say:

    “This knife was made by this craftsman.”

    And for that statement to mean something.

    👉 INTERNAL LINK: “Handmade Japanese Knives” / your existing article discussing handmade knives and long blacksmith waiting times

    Perhaps one day a young person will see a blacksmith whose knives are respected and valued around the world and think, “If I dedicate myself to this craft, maybe my name could mean something too.”

    That is how a tradition gains a future.

    Authentic Japanese Knives Should Carry Their True Value Forward


    180mm Santoku SG2 Rosewood Octagonal Handle

    At Asaoya Yaichi, I want customers to receive good value. There may be promotions, special offers and opportunities to purchase knives at reduced prices.

    But I do not want the long-term value of Authentic Japanese Knives to be determined simply by who can sell them for the lowest price.

    There is a difference between offering customers a good deal and undervaluing the craft itself.

    For me, respecting Japanese knife making means respecting the customer, the knife and the people who make it.

    I hope Japanese Knives in Australia continue to gain recognition not only for their sharpness and performance, but also for the craftsmen and traditions behind them.

    Because when craftsmen are properly valued, the profession itself has value.

    And when a profession has a future, a young person may dream of becoming part of it.

    A good knife can last for many years.

    A healthy tradition should last for generations.

    👉 Explore more:
    https://blog.asaoyayaichi.com.au

    👉 Visit our online store:
    https://asaoyayaichi.com.au

    Thank you for reading, and I hope to see you again in the next story.

  • Japanese Knives Australia Ranking: 5 Exceptional Knives I Would Choose After 25 Years as a Chef

    Japanese Knives Australia Ranking: 5 Exceptional Knives I Would Choose After 25 Years as a Chef

    Asaoya Yaichi

    Choosing a Japanese knife is highly personal. Steel, balance, blade shape, handle design and even appearance can completely change how a knife feels in your hand. After more than 25 years working in professional kitchens, I have learned that the knife I personally want is not always the most expensive one.

    That is why I wanted to create my own Japanese Knives Australia Ranking. Rather than ranking knives purely by price or specifications, these are five knives from the Asaoya Yaichi collection that stand out to me through a combination of usability, craftsmanship, steel, rarity and character.

    If you are currently looking for Japanese knives in Australia, you can also see our collection here:

    👉 https://asaoyayaichi.com.au

    Japanese Knives Australia Ranking — Why These 5?

    Ishizuchi Kanamono Manufactory

    There are many excellent Japanese knives available today, so this ranking is deliberately personal. I am looking at these knives from the perspective of someone who has spent decades actually using knives in professional kitchens.

    Some knives impress me because of their practicality. Others because of traditional Japanese craftsmanship. And sometimes there is simply a knife that makes you think, “I want that one.”

    👉 INTERNAL LINK: Read “Is an Expensive Japanese Knife Really Worth It?” here.

    No. 5 — 210mm Gyuto VG10 Polished Hammered 67 Layer Damascus Green Handle


    210mm Gyuto VG10 Polished Hammered 67 Layer Damascus Green Handle

    At number five in my Japanese Knives Australia Ranking is a 210mm Gyuto made from VG10 stainless steel with a polished hammered 67-layer Damascus finish.

    This is what I would call a dependable all-rounder. A 210mm Gyuto is extremely versatile in both professional and home kitchens, while VG10 offers a practical combination of edge retention, corrosion resistance and ease of maintenance.

    The Damascus pattern and green handle also make this knife visually impressive without sacrificing everyday usability.

    Personally, I would be very tempted to purchase this Gyuto together with the matching Petty. As a set, they cover an enormous amount of everyday kitchen work while looking fantastic together.

    👉 INTERNAL LINK: Read “Hand-Forged vs Machine-Made Japanese Knives” here.

    No. 4 — 180mm Santoku VG10N 33 Layer Damascus Green Marble Handle Rainbow Spacer


    180mm Santoku VG10N 33 Layer Damascus Green Marble Handle Rainbow Spacer Orange

    Number four is something quite different.

    This 180mm Santoku combines VG10N steel with 33-layer Damascus, a Green Marble handle and a Rainbow Spacer.

    The marble-style handle immediately catches the eye, but what makes this knife particularly interesting to me is its rarity. Japanese knives with this combination of blade and handle design are not something you see everywhere.

    The 180mm Santoku size is also highly practical. It gives you enough blade for serious preparation while remaining comfortable and controllable for everyday cooking.

    For someone wanting a Japanese knife that feels genuinely different from the usual choices, this is a special piece.

    👉 INTERNAL LINK: Read “Most Popular Japanese Knife Souvenirs” here.

    No. 3 — 180mm Kiritsuke Aogami #2 Kurouchi Walnut Octagonal Handle


    180mm Kiritsuke Aogami #2 Kurouchi Walnut Octagonal Handle

    If I ranked these knives purely on usability, this could easily be number one.

    I have written about this knife before because I genuinely think its shape is exceptionally easy to use. The Aogami #2 carbon steel is also a steel I personally enjoy working with.

    But what gives this knife its character is the Kurouchi finish.

    The dark, rustic surface carries the character I associate with traditional Tosa knives. It does not try to look overly polished or perfect. For people who understand Japanese knives, that simplicity is part of the attraction.

    This knife is also currently available to see at Chanoyu cafe on the Gold Coast.

    👉 INTERNAL LINK: Read my article about the 180mm Kiritsuke Aogami #2 here.

    No. 2 — Gyuto Ginsan Nashiji Forged Magnolia Octagonal Handle Buffalo Horn Ferrule


    Gyuto Ginsan Nashiji Forged Magnolia Octagonal Handle Buffalo Horn Ferrule

    Number two in my Japanese Knives Australia Ranking is our Ginsan Nashiji Gyuto.

    This knife represents something very different from the modern Damascus designs above. Quality Ginsan stainless steel, a Nashiji finish, forged construction, Magnolia octagonal handle and Buffalo Horn ferrule come together in a knife that feels unmistakably Japanese.

    Interestingly, when I take our knives to businesses and show them in person, this Ginsan series consistently attracts attention. Many of the people I speak with immediately want to know more about it.

    We also carry this style in Gyuto, Santoku, Petty and Nakiri, making it particularly attractive for someone who wants to build a matching Japanese knife set rather than purchase just one knife.

    👉 INTERNAL LINK: Read our article about Ginsan steel and Nashiji-finished Japanese knives here.

    No. 1 — 180mm Santoku Aogami #2 Green Micarta Handle with Turquoise Spacer


    180mm Santoku Aogami #2 Green Micarta Handle with Turquoise Spacer

    My number one choice is the 180mm Santoku Aogami #2 with Green Micarta Handle and Turquoise Spacer.

    I have featured this knife before, and my opinion has not changed.

    For me, it is simply the coolest knife in the collection.

    The turquoise band running through the handle immediately catches the eye, while Aogami #2 is one of my favourite steels. What I particularly like is the contrast between these elements.

    Aogami #2 represents a very traditional Japanese carbon steel, yet the Green Micarta and turquoise give the knife a modern personality. At the same time, the polished blade still retains a subtle, restrained character that reminds me of Japanese wabi-sabi rather than excessive decoration.

    It is traditional and contemporary at the same time.

    After more than 25 years working with kitchen knives, I have handled plenty of expensive and impressive blades. But if I were choosing one knife from the Asaoya Yaichi collection for myself, this is the one I would want.

    That is why it takes first place in my Japanese Knives Australia Ranking.

    👉 INTERNAL LINK: Read my previous article featuring the Aogami #2 Santoku with Green Micarta and Turquoise Spacer here.

    Final Thoughts on My Japanese Knives Australia Ranking

    This is not a ranking based simply on price. It reflects what I personally value after more than 25 years in professional kitchens: usability, steel, craftsmanship, individuality and the feeling a knife gives you when you pick it up.

    Your number one may be completely different from mine — and that is part of what makes Japanese knives so interesting.

    A knife is a tool, but a good knife can also become something personal. Among these five, there are knives I admire, knives I would recommend for their practicality and knives I simply want to own.

    And sometimes, that final feeling matters most.

    👉 Explore more:
    https://blog.asaoyayaichi.com.au

    👉 Visit our online store:
    https://asaoyayaichi.com.au

    Thank you for reading, and I hope to see you again in the next story.

  • Is an Expensive Japanese Knife Really Worth the Money?

    Is an Expensive Japanese Knife Really Worth the Money?

    Asaoya Yaichi

    Is an expensive Japanese knife really worth the money?

    If a $300 Japanese knife can be sharpened until it is extremely sharp, what exactly are you getting when you spend $500, $1,000, or even $2,000 on a knife?

    After more than 25 years working in professional kitchens, I still believe the most important thing about any knife is simple: it has to cut well. No matter how beautiful the handle is, how rare the steel may be, or whose name is engraved on the blade, a knife that does not cut well has missed its most basic purpose.

    But since starting Asaoya Yaichi and becoming involved in selling Japanese knives myself, the way I look at price has started to change.

    I still put cutting performance first. But I have also started to understand that when people spend more on a Japanese knife, they may not be paying only for sharpness.

    So what are they paying for?

    And at what point does an expensive Japanese knife actually become worth the money?

    An Expensive Japanese Knife Is Not Automatically Sharper

    Let’s get one thing out of the way first.

    A $500 knife is not automatically twice as sharp as a $250 knife. A properly sharpened, less expensive knife can easily feel sharper than an expensive knife that has been poorly maintained.

    That is something years in professional kitchens teaches you very quickly.

    The condition of the edge, sharpening technique, blade geometry and how the knife has been used all affect cutting performance.

    A new knife may feel incredibly sharp, but what interests me more is what happens after six months, a year or five years of use. Can I sharpen it and bring that cutting performance back?

    → INTERNAL LINK: Read “First Edge vs True Potential”

    I have also learned from my own sharpening mistakes that repeatedly using too steep an angle can gradually make the area behind the edge thicker. Even a great knife can lose some of the cutting feeling that originally made it special.

    → INTERNAL LINK: Read “Usuba 薄刃 | Thin Blades”

    Price alone cannot guarantee sharpness.

    Sharpness Still Comes First


    240mm Sujihiki VG10 Hammered 17 Layer Damascus Mahogany

    For me, a knife is first and foremost a cutting tool.

    I have spent most of my working life preparing food, including years of handling fish in professional kitchens. When you use knives every day, cutting performance is not just an HRC number or a steel specification on a website.

    You feel it.

    How easily does the edge enter the ingredient? How much resistance comes through your hand? How clean is the cut? How long does the edge remain useful? And when it finally becomes dull, how easily can you bring it back?

    Understanding what happens at the very edge is also why learning about the burr became important to me.

    → INTERNAL LINK: Read “Burr 刃返り | Why It Matters”

    A good Japanese knife should not only impress you when it comes out of the box. It should be a knife that you can maintain and continue enjoying for years.

    So Why Spend More on an Expensive Japanese Knife?


    Above: The knife on top is my colleague’s $2,500 Takohiki.

    This is where my thinking has changed.

    If all you want is something sharp enough to cut onions, meat or fish, you probably do not need an expensive Japanese knife.

    But what if you want more?

    Maybe you want a certain level of cutting performance, but you also want a knife that looks great in your hand. Maybe you appreciate a forged surface, a traditional Kurouchi finish, a beautiful handle or the small differences that come from handmade production.

    → INTERNAL LINK: Read “Handmade Japanese Knives | 7 Reasons No Two Are the Same”

    There is nothing wrong with wanting your knife to look good.

    We use these tools constantly. If picking up a beautiful knife makes cooking more enjoyable, I think that has value too.

    And then there is what happens after you buy it.

    You sharpen it. You maintain it. The blade slowly changes. It gets scratches. A carbon steel blade may develop a patina. The handle develops character.

    After years of use, it stops feeling like a knife you simply bought.

    It becomes your knife.

    For me, that is where spending more begins to make sense.

    Steel Matters — But It Is Not Everything

    Ishizuchi Kanamono Manufactory

    It is easy to become obsessed with steel names when looking at Japanese knives.

    VG10, Ginsan, Aogami #2, Aogami Super and SG2 all have different characteristics that can affect sharpening, edge retention and maintenance.

    I enjoy learning about those differences too.

    → INTERNAL LINK: Read “Ginsan 銀三 | Nashiji 210 Gyuto”

    But I would never choose an expensive Japanese knife from the steel name alone.

    Blade geometry, heat treatment, grinding, finishing, balance, handle construction and the skill of the people involved all contribute to the finished knife.

    A premium steel does not automatically create a premium knife.

    The knife has to work as a whole.

    I Have Never Bought a $2,000 or $3,000 Japanese Knife

    I think I should be honest about this.

    Despite spending more than 25 years working with knives professionally, I have never personally bought a $2,000 or $3,000 knife.

    So I am not going to pretend that I fully understand what it is like to own knives at that level.

    The knives I choose for Asaoya Yaichi are knives I believe in as working tools — knives I would be happy to use myself in a professional kitchen. Cutting performance matters, but so do craftsmanship, appearance and whether the price makes sense for the knife.

    Since starting this business, however, I have begun looking at knives differently.

    I am still a chef looking at a tool.

    But now I am also becoming fascinated by the people, techniques and traditions behind that tool.

    → INTERNAL LINK: Read “Japanese Knife Regions | Do Origins Matter?”

    And perhaps I understand a little better now why somebody might spend thousands of dollars on a single knife.

    Not because a $3,000 knife necessarily cuts ten times better than a $300 knife.

    But because at some point, a knife can become more than its basic function.

    The Expensive Japanese Knife I Haven’t Found Yet

    There is another kind of knife I have not found yet.

    Not a knife I need for work.

    Not a knife I need to stock for Asaoya Yaichi.

    Just one knife for me.

    I do not know who will make it. I do not know what steel it will use, what it will look like or how much it will cost.

    But since starting a Japanese knife business, I sometimes wonder whether one day I will come across a knife, pick it up and simply think:

    “This is the one.”

    And if that knife happens to cost $2,000 or $3,000?

    I think I would buy it.

    Maybe that is ultimately what an expensive Japanese knife is about.

    It is not about buying the most expensive knife you can afford. And it is certainly not about believing that a higher price automatically means a sharper blade.

    For me, sharpness still comes first.

    But if you want good cutting performance, craftsmanship, beauty, and a knife you can sharpen, use, care for and slowly make your own over many years, then yes — I think spending more on the right knife can be worth it.

    Perhaps the knife worth spending serious money on is simply the one that makes you stop thinking about the price.

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  • Tosa Knives and Kurouchi — Why the Black Finish Became So Common

    Tosa Knives and Kurouchi — Why the Black Finish Became So Common

    Ishizuchi Kanamono Manufactory

    Tosa Knives are often easy to recognise. Among polished Japanese knives, Damascus patterns and mirror finishes, many traditional Tosa knives have a much rougher appearance: a dark, almost black surface left above the cutting edge.

    This finish is called Kurouchi (黒打ち).

    Today, Kurouchi has become something many people associate with traditional Japanese knives. But while researching the history of Tosa Knives, I became curious about a more specific question: why does Kurouchi seem to fit Tosa knives so naturally?

    The answer is not as simple as I first expected.

    Tosa Knives Began as Tools for Working People


    From Agricultural Tools to Kitchen Knives

    To understand Kurouchi, we first need to understand where Tosa Knives came from.

    Kochi Prefecture has one of Japan’s strongest historical connections with forestry. Surrounded by mountains and forests, the region developed a long tradition of producing tools for agriculture and forestry.

    Tosa blacksmiths were not historically making only kitchen knives. They produced sickles, hatchets, saws and many other cutting tools required by farmers and forestry workers.

    According to Kochi City, records from the Chosokabe land survey of 1590 indicate that there were 399 blacksmiths in the region. Demand for agricultural and forestry blades later increased during the Edo period as these industries developed.

    These were working tools.

    They needed to cut well, survive hard use and remain practical.

    👉 INTERNAL LINK: Link here to “The History of Tosa Knives”

    That practical background is important when looking at the appearance of traditional Tosa blades.

    Tosa Knives and the Tradition of Free Forging

    One of the defining characteristics of Tosa cutlery is a technique known as Jiyu Tanzo (自由鍛造), or free forging.

    Rather than simply cutting a standard shape from sheet steel, Tosa blacksmiths traditionally forged blades according to their intended purpose. Different regions, working conditions and users could require different dimensions and shapes.

    Kochi Prefecture still describes this free-forging tradition as one of the defining characteristics of Tosa cutlery.

    In other words, the blade begins with its purpose.

    Its shape follows what the user needs.

    That philosophy helps explain why the sometimes rugged appearance of traditional Tosa Knives does not feel out of place. These blades developed from a culture where function mattered enormously.

    👉 INTERNAL LINK: Link here to “What Makes Tosa Knives Different from Other Japanese Knives”

    What Is Kurouchi on Tosa Knives?


    165mm Kiritsuke Thick Deba Aogami #2 Kurouchi Walnut Octagonal Handle

    Kurouchi literally refers to the dark finish left on part of a forged blade.

    During forging and heat treatment, a dark oxide scale forms on the steel. Instead of polishing the entire surface until it becomes bright and uniform, part of that dark surface is left visible while the cutting area is ground and sharpened.

    The result is the familiar contrast between the dark upper blade and the exposed steel closer to the edge.

    It looks rustic because, in a sense, it is.

    Kurouchi is not Damascus decoration painted onto a blade. The dark appearance comes from the blade-making process itself.

    👉 INTERNAL LINK: Link here to “Kurouchi Japanese Knives — What I Learned After Removing It”

    Why Did Kurouchi Become So Common on Tosa Knives?

    This is where I think we need to be careful.

    I could not find a reliable historical source that simply states: “Kurouchi became common in Tosa because of this one reason.”

    So I do not want to invent a history just because it makes a good story.

    What we can establish is that Tosa cutlery developed strongly alongside agriculture and forestry, that practical working blades were extremely important to the region, and that free forging became a defining part of its manufacturing culture.

    From that background, leaving part of the forged surface unpolished makes practical sense. It avoids the need to polish every part of a working blade purely for appearance while retaining the unmistakable character of forging.

    That does not prove that Kurouchi originated in Tosa.

    It almost certainly should not be described that way.

    But it does help explain why Kurouchi and Tosa Knives feel so naturally connected.

    👉 INTERNAL LINK: Link here to “Handmade Japanese Knives — Why No Two Are Exactly the Same”

    From Practical Finish to Japanese Character


    240mm Thick Deba Aogami #2 Kurouchi Walnut Handle

    Something interesting happened to me today here in Australia.

    I visited a café to show the owner some of our knives. When he saw one of the Kurouchi knives, he told me:

    “I want to have this kind of Japanese-looking knife.”

    That comment stayed with me.

    A finish that historically makes perfect sense on a practical forged tool now communicates something completely different on the other side of the world.

    It communicates Japan.

    The uneven black surface, the visible contrast with the sharpened steel and the slightly rugged appearance tell a story before anyone even uses the knife.

    For me, that is part of what makes Tosa Knives fascinating.

    👉 INTERNAL LINK: 壮大 Sōdai | The Knife That Stops People Before They Even Pick It Up

    Tosa Knives: Kurouchi Feels at Home in Tosa


    180mm Kiritsuke Aogami #2 Kurouchi Walnut Octagonal Handle

    I cannot say that Kurouchi was invented in Tosa, nor can I point to a single historical event that explains exactly why it became so strongly associated with Tosa blades.

    But perhaps that is not the most important point.

    Tosa cutlery grew from forests, farms, blacksmiths and people who needed reliable tools. Its tradition of free forging placed purpose before perfect uniformity.

    Kurouchi fits that philosophy remarkably well.

    What was once simply a practical way to finish a forged blade has also become part of the visual character that people around the world now recognise as distinctly Japanese.

    And today, standing in a café in Australia and hearing someone say, “This is the kind of Japanese knife I want,” I was reminded that the old character of Tosa still has the power to speak for itself.

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  • 土佐 Tosa | The Powerful History of Tosa Knives I Wanted to Know

    土佐 Tosa | The Powerful History of Tosa Knives I Wanted to Know

    When you work with something every day, sometimes you forget to ask where it actually came from.

    I sell Tosa knives in Australia, sourcing handcrafted Japanese knives directly from Shikoku, Japan. I have also spent more than 25 years working as a chef in Japan and Australia. I know how these knives feel in the hand, how they sharpen, and how they perform in a professional kitchen.

    But recently, I realised there was something I wanted to understand better.

    How did Tosa knives actually begin?

    I knew that Tosa had a long history of blacksmithing, but I wanted to look deeper into why this particular part of Japan became known for forged blades. What I found made me appreciate the history behind these knives even more.

    The History of Tosa Knives Goes Back Centuries

    Ishizuchi Kanamono Manufactory

    The story of Tosa knives is closely connected to the geography and working life of Kochi Prefecture, historically known as Tosa Province.

    Kochi is a mountainous region with extensive forests. For generations, forestry was an important part of life there, and people needed strong, dependable tools for cutting trees, clearing land and working in the mountains.

    That naturally created demand for forged tools such as axes, hatchets, sickles and saws.

    The history, however, goes back even further.

    Sword-making techniques are said to have reached Tosa during the Kamakura period. By 1590, the Chōsokabe Land Survey Records documented 399 blacksmiths in Tosa Province.

    That number surprised me.

    It shows that blacksmithing was already deeply established in the region more than 400 years ago.

    How Tosa Knives Grew With Forestry and Agriculture


    From Agricultural Tools to Tosa Knives

    The major development of Tosa forged blades came during the early Edo period.

    In 1621, reforms by the Tosa Domain encouraged the development of forestry and new agricultural land. As forestry and farming expanded, so did the need for reliable cutting tools.

    Blacksmiths responded to that demand.

    Over time, production increased and techniques improved. What began as tools essential for daily work gradually developed into what we now recognise as the tradition of Tosa Uchihamono, or Tosa forged blades.

    This is one thing I find particularly interesting about Tosa.

    The tradition was not created simply to make beautiful objects.

    These were working tools.

    They had to cut. They had to survive hard use. And they had to be practical enough for people who depended on them for their livelihood.

    👉 INTERNAL LINK: Read more about why handmade Japanese knives are never exactly the same

    Tosa Knives and the Tradition of Free Forging


    Kiritsuke Aogami #2 Kurouchi Walnut Octagonal Handle

    Another characteristic that caught my attention while researching Tosa knives was something known as jiyū tanzō, or “free forging.”

    Rather than relying entirely on fixed moulds, Tosa blacksmiths traditionally forged different shapes and sizes according to their intended purpose.

    That flexibility made sense in a region where people needed many different kinds of blades for forestry, agriculture and everyday life.

    Even today, you can see something of that character in handcrafted Japanese knives.

    Small differences in hammer marks, blade shape and finish are not necessarily imperfections. To me, they are reminders that a knife was made by human hands rather than simply coming from an automated production line.

    👉 INTERNAL LINK: Read more about Japanese knife finishes and what they really mean

    👉 INTERNAL LINK: Read more about Kurouchi Japanese knives and the traditional black finish

    From Traditional Tosa Blades to Modern Kitchen Knives


    180mm Santoku VG10N 33 Layer Damascus Green Marble Handle Rainbow Spacer

    Today, Tosa knives are known far beyond Kochi.

    In 1998, Tosa Uchihamono was officially designated as a Traditional Craft of Japan. The tradition includes not only kitchen knives but also axes, sickles, hatchets, saws and other working blades.

    Modern Japanese kitchen knives have naturally evolved as well.

    Today we can find traditional carbon steels such as Aogami alongside stainless steels and modern powder metallurgy steels. Handles, finishes and blade styles have changed to suit contemporary cooks, but the connection between Japanese knife making and traditional forging remains.

    👉 INTERNAL LINK: Learn more about Aogami and Shirogami steels

    👉 INTERNAL LINK: Read my guide to Ginsan steel and why I like it for kitchen knives

    For me, that combination is what makes the history of Tosa so interesting.

    It is not simply a tradition frozen in the past.

    It has continued to evolve.

    Why the History of Tosa Knives Matters to Me


    Wooden Box for Traditional Knives

    After looking into this history, I see the knives I work with a little differently.

    I started Asaoya Yaichi because I wanted to bring genuine handcrafted Japanese knives from Shikoku to Australia. As a chef, my first concern will always be practical: does the knife actually work well in a kitchen?

    But there is another side to it.

    Learning about Tosa knives reminded me that Japanese blades did not develop only as kitchen tools. Their history is connected to forestry, agriculture, sword-making knowledge and generations of blacksmiths adapting their skills to what people actually needed.

    That history does not automatically make every knife perfect.

    But I think understanding where these traditions came from gives us a better appreciation of why Japanese forged knives are the way they are today.

    Perhaps that is what I like most about the history of Tosa.

    These blades were never meant to exist only behind glass.

    They were made to be used.

    And more than 400 years later, that practical spirit can still be found in the Japanese forging traditions that continue across Shikoku today.

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  • 仕上げ | Japanese Knife Finishes: What I Learned After 25 Years as a Chef

    仕上げ | Japanese Knife Finishes: What I Learned After 25 Years as a Chef


    180mm Santoku VG10N 33 Layer Damascus Green Marble Handle Rainbow Spacer

    After more than 25 years working as a professional chef in Japan and Australia, I have used Japanese knives for most of my working life. But when it comes to Japanese Knife Finishes, I recently realised there was a lot I had never really thought about.

    I have used Kurouchi and Damascus knives, and I have even polished one of my own knives to a near-mirror finish. I have also spent many years using traditional Yanagiba and Deba, including an old Yanagiba passed down to me by my mother.

    Of course, I knew these knives looked different. But I never really stopped to ask why.

    Does a hammered finish actually help food release? Is Kurouchi practical or mainly traditional? Does a mirror-polished blade perform differently?

    Since starting a Japanese knife business, I have begun looking at knives from a different perspective. So once again, I decided to do some research.

    What Are Japanese Knife Finishes?

    Ishizuchi Kanamono Manufactory

    The first thing I learned is that Japanese Knife Finishes are not all created for the same reason.

    Some come directly from the knife-making process, while others involve additional polishing, hammering or decorative work. Some can also influence how food contacts the side of the blade.

    But one thing became clear very quickly: the finish alone does not determine how well a knife cuts or releases food.

    Blade geometry, thickness, grind, sharpening, the ingredient and even cutting technique can all make a significant difference.

    Thinking back over my career, this makes sense. I have always noticed the edge, geometry, weight and balance of a knife far more than its surface finish.

    👉 INTERNAL LINK: 切味 Kireaji article

    Kurouchi — A Finish I Learned to Appreciate


    165mm Kiritsuke Aogami #2 Kurouchi Walnut Octagonal Handle

    Kurouchi is one finish I definitely know from experience.

    The dark surface is associated with the forging process and is intentionally left on parts of the blade instead of being completely polished away.

    Years ago, however, I didn’t appreciate it.

    I had a Kurouchi knife and decided I wanted it shiny, so I removed the black surface and polished the blade myself.

    At the time, I thought it looked better.

    Today, I probably wouldn’t do it.

    I now appreciate the rustic appearance and character of Kurouchi much more. The remaining oxide layer can also offer some protection to the covered carbon-steel surface, although exposed carbon steel and the cutting edge still require proper care.

    👉 INTERNAL LINK: Kurouchi Japanese Knives 黒打ち | I Once Removed It All — And Learned From It

    Do Textured Japanese Knife Finishes Help Food Release?


    VG10 Polished Hammered 67 Layer Damascus Green Handle

    This was probably what I was most curious about.

    Tsuchime is the familiar hammered finish, while Nashiji has a subtler textured surface often compared to the skin of a Japanese pear.

    The idea that these textures can help food release makes sense. An uneven surface changes the contact between the food and blade and, in some cases, can reduce the tendency for food to cling tightly to it.

    But I learned that it isn’t as simple as saying:

    “Tsuchime means food doesn’t stick.”

    Blade geometry still matters enormously.

    Two knives with similar finishes can behave very differently depending on their grind, thickness and overall shape.

    This was interesting to me because it showed that Japanese Knife Finishes can have a practical function without necessarily being the main reason a knife performs well.

    Polished, Mirror and Damascus Finishes


    180mm Santoku Aogami #2 Green Micarta Handle with Turquoise Spacer

    Migaki refers to a polished finish, although the degree of polishing varies between makers.

    Mirror polish takes that idea much further.

    I understand the attraction because I used to love shiny knives. I have spent plenty of time polishing a blade myself until it became highly reflective.

    But a smoother surface doesn’t automatically mean better performance. Moist or starchy ingredients can still cling to a smooth blade, and after years in professional kitchens, I have also become much less worried about scratches.

    A working knife is going to look like a working knife.

    Damascus is another finish I have actually used. The layered patterns can be beautiful, but the pattern itself doesn’t automatically make a knife sharper.

    In many modern Japanese knives, Damascus layers form the cladding around a core steel. The core steel, heat treatment, blade geometry and sharpening have a much more direct relationship with cutting performance.

    I still love the appearance of a beautiful Damascus blade. I just wouldn’t say, “It’s Damascus, so it must cut better.”

    👉 INTERNAL LINK: Hardness 硬度 | Japanese Knife HRC article

    Traditional Yanagiba, Deba and Kasumi

    Traditional Tosa Knives

    Researching Kasumi was particularly interesting because I have used traditional Yanagiba and Deba for many years.

    One of my Yanagiba was passed down to me by my mother and has been used for decades.

    But I don’t want to pretend that I spent those years analysing its finish.

    I didn’t.

    To me, it was simply a traditional Japanese working knife. I sharpened it, maintained it and used it.

    Only after becoming involved in selling Japanese knives did I start paying more attention to terms such as Kasumi and the manufacturing and polishing techniques behind traditional blades.

    Sometimes there is a big difference between knowing how to use something and understanding exactly how it was made.

    👉 INTERNAL LINK: Japanese Knife Bevels | Single Bevel vs Double Bevel Explained

    What I Learned About Japanese Knife Finishes


    180mm Kiritsuke Aogami #2 Kurouchi Walnut Octagonal Handle

    After looking more closely at Japanese Knife Finishes, I don’t think there is one “best” finish.

    Some finishes may influence food release or surface protection. Some reflect traditional manufacturing methods. Others involve considerable extra craftsmanship and are valued partly for their beauty.

    But I would never choose a knife based on finish alone.

    After more than 25 years as a chef, I still pay more attention to blade geometry, sharpening, weight, balance and how the knife actually feels in my hand.

    What surprised me most was realising that I had used some of these finishes for decades without really thinking about why they existed.

    Starting Asaoya Yaichi has made me curious about things I once simply accepted.

    And sometimes, researching something I thought I already understood reminds me just how much there still is to learn about Japanese knives.

    👉 INTERNAL LINK: 均衡 Kinkō | Japanese Knife Balance article

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  • Kurouchi Japanese Knives 黒打ち | I Once Removed It All — And Learned From It

    Kurouchi Japanese Knives 黒打ち | I Once Removed It All — And Learned From It

    Kurouchi Japanese Knives have a distinctive appearance that is immediately recognisable. The dark, almost unfinished-looking surface left from the forging process gives each knife a character very different from a polished blade.

    But I have to admit something.

    I have used Kurouchi knives for years, but I have never been someone who believes every knife has to be Kurouchi. I like them, I use them, and I appreciate the traditional appearance — but my relationship with Kurouchi has been a little more complicated than that.

    In fact, many years ago, I completely removed the Kurouchi finish from one of my knives.

    Looking back now, I probably wouldn’t do it the same way again.

    What Are Kurouchi Japanese Knives?

    Ishizuchi Kanamono Manufactory

    The word Kurouchi (黒打ち) literally refers to the black finish commonly seen on traditionally forged Japanese knives. Rather than polishing the entire surface of the blade, part of the dark forge scale is intentionally left on the knife.

    This gives Kurouchi Japanese Knives their rustic and unmistakably handmade appearance.

    For me, though, the interesting part of Kurouchi isn’t simply how it looks when the knife is new. It is what happens after you actually start using it.

    A handmade knife doesn’t stay frozen in the condition in which you bought it. Scratches appear. The blade gets sharpened. Carbon steel develops patina. Handles change with use. And the Kurouchi finish itself can slowly wear and change.

    That is part of owning and using a handmade Japanese knife.

    👉 Related story: Handmade Japanese Knives | 7 Fascinating Reasons No Two Are Ever Exactly the Same

    The Time I Removed All the Kurouchi


    The Sujihiki I Removed the Kurouchi From

    Years ago, I was given a Kurouchi sujihiki.

    At the time, I had become slightly obsessed with mirror polishing knives. I enjoyed taking a blade and seeing just how clean and reflective I could make the surface.

    So one day I had an idea.

    Why not remove the black finish?

    I took the knife to the whetstones and gradually removed all of the Kurouchi.

    Every bit of it.

    At the time, I was happy with what I had done. I wanted a polished knife, so I made it polished.

    But today, I see that knife differently.

    If I were doing the same project now, I would probably leave the black Kurouchi finish above the bevel and polish the exposed steel below it to a mirror finish.

    The contrast between deep black Kurouchi and bright polished steel would probably look much better.

    More importantly, it would preserve part of the original character of the knife.

    Sometimes you only learn what you like after doing something the other way first.

    👉 Related story: 漆黒 Shikkoku | Where Deep Black Forging Creates a Masterpiece

    Kurouchi Japanese Knives Change With You

    This is something I think buyers should understand before choosing Kurouchi Japanese Knives.

    They change.

    The black finish can gradually wear. Areas that receive more contact may look different from areas that receive less. The appearance may become less uniform than when the knife was brand new.

    Whether that is good or bad depends entirely on the person holding the knife.

    Personally, I am fine with it.

    If a knife changes because I have cooked thousands of meals with it, sharpened it countless times and used it every day, I don’t necessarily see those changes as damage.

    They are part of the knife.

    It is similar to the way I think about patina on carbon steel. Some people want to remove every mark immediately. Others enjoy watching the blade develop its own appearance through use.

    Neither person is necessarily wrong.

    👉 Related story: Ancient Patina 古色 | 7 Powerful Truths About Japanese Knife Patina That Even Surprised Me

    Kurouchi Is Probably Not for Everyone

    His Knife

    There is another side to this.

    I previously wrote about a chef I knew who loved keeping his knives absolutely spotless. Even a small amount of cloudiness on the blade could bother him.

    There is nothing wrong with that.

    Some people simply love a perfectly polished Japanese knife.

    For someone like that, a Kurouchi knife may not be the best choice.

    If you expect your knife to look exactly the same after years of professional use as it did on the day you opened the box, the natural changes of a Kurouchi finish could become frustrating.

    This is why I don’t think there is one “best” Japanese knife finish.

    The right knife depends on the person.

    Some people love mirror polishing. Some love Nashiji. Some love Damascus patterns. Others want the rustic appearance of Kurouchi.

    The important thing is understanding what you are buying and choosing something that suits the way you see your tools.

    👉 Related story: The True Value of Japanese Knives | 7 Reasons

    Why I See Kurouchi Differently Today


    Kiritsuke Thick Deba Aogami #2 Kurouchi Walnut Octagonal Handle

    After more than 25 years working as a chef in Japan and Australia, my relationship with knives has changed.

    When I was younger, I sometimes wanted a knife to look perfect.

    Today, I am much more interested in what happens after years of actually using it.

    A scratch doesn’t automatically bother me. A developing patina doesn’t necessarily need to disappear. A handle that has changed slightly through years of work can remind me how much that knife has been used.

    And if the Kurouchi finish slowly changes, I can accept that too.

    Perhaps that is why I now look back at the sujihiki I completely polished and think I would do things differently today.

    I don’t regret experimenting with it. In fact, I’m glad I did.

    It taught me something.

    A handmade Japanese knife doesn’t always need to be improved, corrected or returned to perfection. Sometimes the changes that happen through use are exactly what give the knife its character.

    👉 Related story: 切味 Kireaji | 7 Truths About the Feel of Sharpness

    Kurouchi Japanese Knives Are Made to Be Used


    240mm Thick Deba Aogami #2 Kurouchi Walnut Handle

    For me, this is ultimately the attraction of Kurouchi Japanese Knives.

    Not because Kurouchi is better than every other finish.

    Not because every chef should own one.

    And certainly not because a Kurouchi knife will remain perfectly black forever.

    I like the fact that it can change.

    If the black finish wears in a way that I like, great. If it develops differently from what I imagined, I can still see that as part of the knife’s story.

    That attitude won’t suit everyone.

    And that’s okay.

    A Japanese knife is a personal tool. After years of sharpening, cooking and caring for it, it becomes different from the knife that originally arrived from the blacksmith.

    Maybe that is something worth appreciating rather than preventing.

    After all, I once removed every trace of Kurouchi from a knife because I thought polished steel looked better.

    Today?

    I’d probably leave some of that black behind.

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  • Handmade Japanese Knives | 7 Fascinating Reasons No Two Are Ever Exactly the Same

    Handmade Japanese Knives | 7 Fascinating Reasons No Two Are Ever Exactly the Same


    Ishizuchi Kanamono Manufactory 

    When I imported my first batch of handmade Japanese knives, I ordered two or three of the same model. I expected them to look almost identical. After all, they had the same blade length, the same steel, the same handle material, and were made by the same craftsman.

    But when I placed them side by side, I noticed something unexpected.

    No two knives were exactly the same.

    At first, I wondered if something was wrong. Then I realized I wasn’t looking at imperfections—I was looking at the beauty of true craftsmanship. That moment changed the way I saw handmade Japanese knives, and it reminded me why so many people around the world value them so highly.

    Handmade Japanese Knives Reflect the Hands That Made Them

    One of the biggest differences between handmade Japanese knives and factory-produced knives is that every step involves skilled human hands.

    Even when a blacksmith follows the same design repeatedly, every hammer strike is unique. Every blade is shaped, ground, and finished by hand. Small differences naturally appear throughout the process, and those differences become part of each knife’s character.

    Rather than being flaws, they are evidence that a real craftsman created the knife instead of a machine.

    Handmade Japanese Knives Have Unique Kurouchi and Hammered Finishes


    165mm Kiritsuke Aogami #2 Kurouchi Walnut Octagonal Handle

    If you compare two handmade Japanese knives with a Kurouchi or Tsuchime finish, you’ll quickly notice subtle differences.

    The dark Kurouchi surface may have a slightly different texture.

    The hammered pattern may catch the light differently.

    Even the polish near the edge can vary from one knife to another.

    These details cannot be copied perfectly because they are created by hand, making every knife feel genuinely individual.

    ➡ Internal Link: Why I Still Use Carbon Steel for Sashimi After 25 Years

    Every Wooden Handle Is Naturally Different

    The blade isn’t the only part that tells a story.

    Natural wood has its own grain, color, and texture. Even if two handles are made from the same species of wood, they will never look completely identical.

    Some pieces have darker lines.

    Others have lighter tones.

    Some display dramatic grain patterns, while others appear clean and understated.

    These natural variations make every handmade Japanese knife even more personal.

    Small Differences Are Part of Traditional Craftsmanship


    Ginsan Nashiji Forged Magnolia Octagonal Handle Buffalo Horn

    Modern factories aim for perfect consistency.

    Traditional Japanese workshops aim for exceptional quality.

    That difference is important.

    A craftsman focuses on creating the best possible knife rather than producing thousands of completely identical pieces. Slight variations in finish or appearance are simply part of the handmade process that has been passed down through generations.

    This is one reason collectors, chefs, and cooking enthusiasts often appreciate handmade Japanese knives so much.

    ➡ Internal Link: Samurai Century | The Finest Expression of Tosa Knife Craftsmanship, Passed Down Since the Age of the Chōsokabe Clan

    Handmade Japanese Knives Tell Their Own Story


    180mm Santoku VG10N 33 Layer Damascus Green Marble Handle Rainbow Spacer

    When I first compared those identical models, I expected to choose the “best” one.

    Instead, I found myself appreciating each knife for different reasons.

    One had a stronger Kurouchi finish.

    Another had a particularly beautiful wood grain.

    A third had a hammered pattern that reflected light in a unique way.

    None of them were better or worse.

    They simply had different personalities.

    That’s something I never expected before starting Asaoya Yaichi.

    ➡ Internal Link: Monozukuri | Where Japanese Craftsmanship Meets Quiet Beauty

    Why Handmade Japanese Knives Feel More Meaningful

    When you own something made by skilled hands, you begin to notice details that machines simply cannot reproduce.

    Every tiny variation reminds you that someone heated the steel, shaped the blade, sharpened the edge, and carefully finished the knife.

    That human touch creates an emotional connection that goes beyond cutting performance.

    Over time, your knife develops its own story alongside yours.

    Whether you’re preparing dinner at home or working in a professional kitchen, it becomes more than just a tool.

    It becomes something you’ll remember every time you pick it up.

    ➡ Internal Link: The True Value of Japanese Knives | 7 Reasons They Are Worth the Investment

    Why These Differences Should Be Appreciated

    My knives

    Many people assume that two knives with the same specifications should look exactly alike.

    That’s true for mass-produced products.

    It isn’t true for handmade Japanese knives.

    The subtle differences in finish, texture, wood grain, and overall appearance aren’t defects—they’re signs that the knife was made through traditional craftsmanship rather than automated production.

    Once I understood that, I stopped searching for perfect uniformity and started appreciating individuality instead.

    That’s one of the reasons handmade Japanese knives continue to impress me every time I open a new shipment.

    ➡ Internal Link: Forged Legacy | The 165mm Kiritsuke Thick Deba That Carries 400 Years of Tosa Craftsmanship

    If you’ve only ever owned factory-made knives, seeing several handmade Japanese knives side by side can be a surprising experience.

    You may discover that the small differences are exactly what make each knife special.

    Those details represent tradition, craftsmanship, and the human touch that machines simply cannot replicate.

    If you’re looking for a knife with genuine character rather than perfect uniformity, handmade Japanese knives offer something truly unique.

    👉 Explore more:
    https://blog.asaoyayaichi.com.au

    👉 Visit our online store:
    https://asaoyayaichi.com.au

    Thank you for reading, and I hope to see you again in the next story.

  • 壮大 Sōdai | The Knife That Stops People Before They Even Pick It Up

    壮大 Sōdai | The Knife That Stops People Before They Even Pick It Up


    240mm Thick Deba Aogami #2 Kurouchi Walnut Handle
    A$650.00

    The first time I saw this 240mm Thick Deba Aogami #2, I wasn’t thinking about cutting performance.

    I was thinking about people.

    More specifically, I imagined this knife displayed in one of the restaurants or specialty knife retailers I work with here in Australia.

    I could already picture customers stopping in front of it.

    Looking closer.

    Asking questions.

    After more than 25 years as a chef, I honestly don’t believe everyone needs a knife this large. Throughout my career, I’ve prepared surprisingly large fish using much smaller knives, and that’s still the advice I give today—buy the knife that suits the way you cook.

    So why did I import this 240mm Thick Deba Aogami #2?

    Because every now and then, you come across a knife that deserves attention long before it ever touches a cutting board.

    Why I Chose the 240mm Thick Deba Aogami #2

    Ishizuchi Kanamono Manufactory

    As a chef, I also work closely with restaurants and specialty knife retailers across Australia, supplying carefully selected handcrafted Japanese knives.

    Most knives are chosen because they fit a particular job.

    This one was different.

    The moment I saw it, I thought,

    “If I display this in one of the restaurants or stores I supply, people will stop and look.”

    That first impression mattered.

    Not because it is oversized.

    Not because it is expensive.

    But because it immediately tells a story about traditional Japanese craftsmanship.

    ➡ Internal Link: Beginner’s Guide to Japanese Kitchen Knives

    The 240mm Thick Deba Aogami #2 Showcases Authentic Kurouchi Craftsmanship

    紅　Beni |
    Where bold color meets timeless Japanese craftsmanship.

    Of course, appearance alone isn’t enough.

    The blade is forged from Aogami #2 carbon steel, one of Japan’s most respected steels for professional kitchen knives. It offers outstanding sharpness, excellent edge retention, and responds beautifully to sharpening.

    What truly gives this knife its character, however, is the traditional Kurouchi finish.

    Instead of polishing away every mark left by the forging process, the black finish proudly preserves the texture created by fire, hammer, and steel.

    Every mark reminds me that this knife wasn’t mass-produced.

    It was forged by skilled hands.

    Combined with the thick blade and the walnut octagonal handle, the result is a knife with incredible presence while remaining unmistakably traditional.

    Unlike many classic Deba knives, this model features a double bevel edge, making it more approachable for many chefs while maintaining the strength expected from a Thick Deba.

    ➡ Internal Link: Carbon Steel vs Stainless Steel

    Why I Don’t Recommend the 240mm Thick Deba Aogami #2 to Everyone

    This may sound unusual coming from someone who sells Japanese knives.

    But it’s the truth.

    If your goal is simply to process fish efficiently, you probably don’t need a knife this large.

    I’ve spent over two decades in professional kitchens, and I’ve broken down large fish using smaller knives countless times.

    That’s why I always recommend buying the knife that matches your everyday cooking rather than choosing the biggest blade available.

    However, practicality isn’t always the only reason we buy something.

    Sometimes craftsmanship matters.

    Sometimes tradition matters.

    And sometimes you simply admire the work of the blacksmith.

    That’s exactly how I feel about this 240mm Thick Deba Aogami #2.

    ➡ Internal Link: Why Do Japanese Knives Rust So Easily?

    The 240mm Thick Deba Aogami #2 Represents Tosa’s Knife-Making Heritage

    When I hold this knife, I don’t just think about preparing fish.

    I think about generations of craftsmen in Tosa.

    I think about glowing steel, repeated hammer blows, and skills passed down over centuries.

    That heritage is visible in every part of this knife—from the bold Kurouchi finish to the thick spine and beautifully balanced walnut handle.

    It feels less like a tool and more like a piece of functional craftsmanship.

    That’s why I wanted it to become part of the collection I offer to restaurants, retailers, and knife enthusiasts across Australia.

    ➡ Internal Link: Samurai Century | The Finest Expression of Tosa Knife Craftsmanship

    Final Thoughts on the 240mm Thick Deba Aogami #2

    Asaoya Yaichi

    Would I recommend this knife to every customer?

    Probably not.

    Would I proudly display it in one of the restaurants or specialty knife retailers I work with?

    Absolutely.

    Because I know exactly what happens when someone sees it for the first time.

    They stop.

    They look.

    And they want to hold it.

    That’s exactly why I imported it.

    If you’re looking for authentic handcrafted Japanese knives, whether for your kitchen, your collection, or your restaurant, I’d love to help you discover the right one.

    ➡ Internal Link: Forged Legacy | The 165mm Kiritsuke Thick Deba That Carries 400 Years of Tosa Craftsmanship

    Visit Asaoya Yaichi to explore carefully selected handcrafted Japanese knives from Tosa, trusted by chefs, collectors, and restaurants across Australia.

    https://www.asaoyayaichi.com.au

  • Forged Legacy | The 165mm Kiritsuke Thick Deba That Carries 400 Years of Tosa Craftsmanship

    Forged Legacy | The 165mm Kiritsuke Thick Deba That Carries 400 Years of Tosa Craftsmanship

    Some knives are designed to impress.

    Others are designed to work.


    165mm Kiritsuke Thick Deba Aogami #2 Kurouchi Walnut Octagonal Handle
    A$480.00

    The 165mm Kiritsuke Thick Deba Aogami #2 Kurouchi Walnut Octagonal Handle belongs firmly in the second category.

    At first glance, its black Kurouchi finish may seem simple compared to polished Damascus blades. But beneath that traditional appearance lies one of the finest examples of Tosa craftsmanship, a style of knife making that has been refined for more than 400 years.

    This isn’t a knife created to follow trends.

    It’s a knife created to continue a legacy.

    What Makes a Tosa Thick Deba Different?

    double-bevel edge

    When many people hear the word Deba, they imagine a heavy, single-bevel knife used only by professional Japanese chefs.

    A Kiritsuke Thick Deba from Tosa is different.

    This knife combines the strength of a traditional thick deba with the practicality of a double-bevel edge, making it far easier for both professional chefs and passionate home cooks to use.

    Whether you’re breaking down a whole fish, trimming large cuts of meat, or tackling tougher ingredients, the extra blade thickness provides confidence and durability that lighter knives simply cannot match.

    For Australian cooks who enjoy preparing salmon, kingfish, tuna, snapper, grouper, or other large reef fish, this style of knife offers versatility that surprises many people.

    Choosing the Right Size


    150mm Kiritsuke Thick Deba Aogami #2 Kurouchi Walnut Octagonal Handle
    A$450.00

    The 165mm Kiritsuke Thick Deba is the size I recommend for most people.

    It offers plenty of power for breaking down larger fish such as salmon and kingfish, while still being comfortable enough for everyday use.

    For those who regularly prepare slightly smaller fish, there’s also a 150mm Kiritsuke Thick Deba Aogami #2 Kurouchi with a Walnut Octagonal Handle available.

    The shorter blade feels a little more agile when working with fish like snapper, grouper, and other medium-sized species where a more compact knife offers greater control.

    To be honest, I don’t think most people need to own both sizes.

    For the vast majority of cooks, the 165mm is the more versatile option.

    The 150mm simply provides another excellent choice if you mainly prepare smaller fish and prefer a slightly more compact knife.

    Forged from Aogami #2 Steel


    Carbon Steel vs Stainless Steel 

    One of the greatest strengths of this knife is its Aogami #2 (Blue Steel #2) core.

    Among Japanese knife enthusiasts, Aogami #2 is respected for offering an outstanding balance of:

    • Exceptional sharpness
    • Excellent edge retention
    • Outstanding toughness
    • Easier sharpening than many modern powder steels

    Unlike stainless steel, Aogami #2 develops character over time.

    As you sharpen it, maintain it, and continue using it, the blade gradually tells the story of its owner.

    That relationship between knife and user is something many handcrafted Japanese knives share—but Tosa blacksmiths have preserved it for generations.

    The Beauty of Kurouchi

    The more I used traditional Tosa knives, the more I realised something.

    Many people first notice the black finish.

    Some even wonder why it isn’t polished.

    The answer lies in tradition.

    The Kurouchi finish is created by leaving part of the protective scale formed during forging on the blade. Rather than polishing everything away, Tosa blacksmiths preserve part of the knife’s history.

    The result is a knife that feels honest.

    Nothing unnecessary.

    Nothing decorative for decoration’s sake.

    Just practical craftsmanship built for daily work.

    Over time, the Kurouchi finish develops its own character, making every knife unique to its owner.

    A Walnut Octagonal Handle Built for Control

    Japanese Knife Handles:
    Why the Handle Matters More Than You Think

    The walnut octagonal handle perfectly complements the blade.

    Walnut provides a warm, natural feel in the hand while remaining durable enough for everyday kitchen use.

    The octagonal shape allows comfortable control from multiple grip positions, whether you’re filleting fish, portioning meat, or performing detailed knife work.

    Combined with the balance of the thick deba blade, the knife feels remarkably secure despite its strength.

    Like the blade itself, the handle isn’t designed to attract attention—it is designed to feel natural after hours of use.

    More Than 400 Years of Tosa Craftsmanship

    Craftsmanship, Passed Down Since the Age of the Chösokabe Clan

    Knife making in Tosa traces its roots back more than four centuries to the era of the Chōsokabe Clan

    Originally producing tools for forestry, farming, and daily life, Tosa’s blacksmiths built a reputation for practical, dependable blades that could withstand demanding work.

    That philosophy remains unchanged today.

    This knife isn’t trying to be flashy.

    It’s trying to perform.

    Every hammer strike, every grind, and every final sharpening reflects a tradition passed down through generations of craftsmen who value function above fashion.

    When you hold this knife, you’re holding far more than steel.

    You’re holding over 400 years of Tosa craftsmanship.

    Why This Knife Represents the Spirit of Tosa

    Wabi-Sabi Vibes

    If someone asked me to choose a single knife that represents traditional Tosa craftsmanship, this would be one of the first I’d recommend.

    Its Kurouchi finish, durable Aogami #2 steel, practical double-bevel design, and handcrafted walnut octagonal handle embody everything I admire about Tosa knives.

    After more than 25 years working as a chef, I’ve learned that the best knives aren’t always the most decorative.

    They’re the ones you instinctively reach for every day because you trust them.

    That’s exactly how I feel about this Kiritsuke Thick Deba.

    It was built to work.

    It was built to last.

    And above all, it was built to carry forward a legacy that has endured for more than four centuries.

    Discover Authentic Tosa Knives

    Asaoya Yaichi

    At Asaoya Yaichi , our goal is to introduce authentic handcrafted Tosa knives to Australia while supporting the skilled craftsmen who continue this remarkable tradition.

    Every knife is carefully selected because I genuinely believe in its quality—not because it follows a trend, but because it represents the craftsmanship, reliability, and history that have defined Tosa knife making for generations.

    If you’re looking for a knife with genuine history, outstanding performance, and timeless craftsmanship, I invite you to explore our collection of handcrafted Tosa knives.

    🔪 https://www.asaoyayaichi.com.au

  • Why Do Japanese Knives Rust So Easily? (And Why That’s Not a Bad Thing)

    Why Do Japanese Knives Rust So Easily? (And Why That’s Not a Bad Thing)

    Ishizuchi Kanamono Manufactory

    One of the most common questions I hear is:

    “Why does my Japanese knife rust so easily?”

    It’s a fair question. After all, many people expect an expensive knife to stay shiny and rust-free forever.

    But with traditional Japanese knives, rust isn’t a sign of poor quality. In many cases, it’s actually a sign of what makes the knife special.

    Why Carbon Steel Rusts

    Asaoya Yaichi

    Many handcrafted Japanese knives are made from high-carbon steel, such as Aogami (Blue Steel) or Shirogami (White Steel).

    These steels are loved by professional chefs because they offer exceptional sharpness, excellent edge retention, and are easier to sharpen than many stainless steels.

    The trade-off is that carbon steel reacts more easily with moisture and acidic foods, so it can develop rust if left wet.

    My Own Experience

    I learned this the hard way.

    Even after rinsing my knife with water, I once left it sitting for a while after cutting citrus fruit.

    When I came back, small spots of rust had already started to appear.

    It wasn’t because the knife was poorly made.

    It was because the acid from the citrus remained on the blade long enough to react with the carbon steel.

    Since then, I’ve made it a habit to wash my knives, dry them immediately, and never leave them sitting wet.

    Rust Doesn’t Mean a Bad Knife


    180mm Kiritsuke Aogami #2 Kurouchi Walnut Octagonal Handle

    Many of Japan’s finest kitchen knives are made from carbon steel.

    Professional chefs continue to choose them because they value cutting performance over convenience.

    A little extra care is a small price to pay for a knife that delivers incredible sharpness and can last for decades.

    How to Prevent Rust

    Knife Care

    Keeping a carbon steel knife in great condition is simple.

    • Wash it soon after use.
    • Dry it thoroughly with a clean towel.
    • Never leave it soaking in water.
    • Be extra careful after cutting acidic foods such as lemons, limes, or tomatoes.
    Tsubaki Oil
    • If storing the knife for an extended period, apply a thin coat of camellia oil (tsubaki oil), which has traditionally been used in Japan to protect carbon steel from rust. If you don’t have camellia oil, a small amount of food-grade cooking oil can also be used as a temporary alternative.

    What If Rust Already Appears?

    Don’t panic if you notice rust on your knife.

    In many cases, light surface rust can be removed before it causes any serious damage.

    Depending on the severity of the rust, you may be able to remove it by:

    • Sharpening the blade on a whetstone.
    • Gently polishing the affected area with fine-grit sandpaper.
    • Using a rust eraser designed for knives and tools, such as products commonly known in Japan as Sabitoru.

    The most important thing is to deal with rust as soon as you notice it. The longer rust remains on the blade, the more difficult it can become to remove.

    Prevention Is Better Than Restoration


    240mm Thick Deba Aogami #2 Kurouchi Walnut Handle

    One of the best ways to keep a carbon steel knife in excellent condition is to prevent rust from forming in the first place.

    Once rust starts to develop, the affected areas can become more susceptible to rusting again if they are not properly cleaned and protected.

    That’s why it’s best to care for your knife from the day you buy it. Keeping the blade clean and dry from the beginning is the easiest way to maintain both its appearance and its cutting performance for years to come.

    As with most knife care, prevention is always easier than restoration.

    Final Thoughts


    180mm Santoku VG10N 33 Layer Damascus Green Marble Handle Rainbow Spacer Blue

    Carbon steel knives aren’t difficult to own—they’re simply different.

    Once you understand how to care for them, you’ll see why so many professional chefs continue to choose carbon steel over stainless steel.

    However, if you’re not confident that you’ll be able to give a carbon steel knife the care it needs, there’s nothing wrong with choosing a stainless steel knife instead.

    A knife that suits your lifestyle is always a better choice than one that causes unnecessary stress.

    At Asaoya Yaichi, we proudly offer authentic handcrafted Tosa knives made by skilled Japanese craftspeople, including both carbon steel and stainless steel options.

    If you’re looking for an authentic Japanese knife, we’d be happy to help you find the one that’s right for you.

    Explore our collection at:

    https://www.asaoyayaichi.com.au

    From Tosa, Japan, to your kitchen.

  • I Thought Black-Finished Knives Looked Cheap… Until I Used One

    I Thought Black-Finished Knives Looked Cheap… Until I Used One


    240mm Sujihiki VG10 Hammered 17 Layer Damascus Mahogany

    Black-Finished Knives changed the way I think about Japanese knives. I used to believe they looked cheap, but after years of using them professionally, my opinion completely changed.

    When people think of a beautiful Japanese knife, many imagine a polished Damascus blade with striking patterns.

    I understand why.

    I actually use several Damascus knives myself. To be honest, many of them came to me as sample knives rather than because I specifically chose Damascus.

    But if I’m being completely honest, I’ve never believed a knife is beautiful simply because it has a Damascus pattern.

    A great-looking knife is a great-looking knife, whether it’s Damascus, polished, or black-finished.

    My First Impression of a Black-Finished Knife

    Black-Finished Knives - Handcrafted Tosa Knife

    210mm Sujihiki Aogami #2 Kurouchi Magnolia Handle

    Before I had anything to do with Tosa knives, the head chef I worked with owned a black-finished (Kurouchi) sujihiki.

    The first time I saw it, I honestly thought,

    “What is this? It looks like a toy.”

    Back then, I believed expensive Japanese knives had to be shiny and perfectly polished.

    I couldn’t understand why anyone would want a knife with a dark, rough finish.

    I was completely judging it by its appearance.

    Then I Started Using One


    165mm Kiritsuke Aogami #2 Kurouchi Walnut Octagonal Handle

    Eventually, I had the chance to use a Kurouchi sujihiki made with Aogami #2 steel.

    I liked it, although personally it felt a little softer than I expected.

    Later, I switched to a Kurouchi gyuto made with Aogami super steel.

    That knife completely changed my opinion.

    It held an excellent edge, felt incredibly reliable, and suited the way I cook.

    I’ve used it for everything—from filleting fish to breaking down large fish and even cutting through the heads of salmon and kingfish.

    It has never let me down.

    A Knife That Becomes Yours

    Ishizuchi Kanamono Manufactory

    The more I used that knife, the more it felt like it belonged to me.

    The scratches, the patina, and the marks from years of work became part of its story—and mine.

    I’ve been using that knife for around five years now.

    Even today, I still reach for it almost every day.

    Looking back, it’s funny to think I once dismissed black-finished knives because of how they looked.

    Now I know that the beauty of a knife isn’t just in its appearance.

    It’s in how it performs, how it ages, and how it earns your trust over time.

    Looking for an Authentic Japanese Knife?


    180mm Santoku VG10N 33 Layer Damascus Green Marble Handle Rainbow Spacer Red

    Looking for an Authentic Japanese Knife?

    If you’re searching for a handcrafted Japanese knife made by skilled artisans—not just one that looks beautiful, but one that’s built to perform for years—I’d love to introduce you to the craftsmanship of Tosa.

    One of the biggest lessons I’ve learned as a chef is that a knife should never be judged by its appearance alone. When I was younger, I believed a polished blade represented quality, while a black-finished knife looked unfinished or even cheap. Years of working in professional kitchens completely changed that way of thinking.

    A knife earns its value through performance. The way it holds its edge, the confidence it gives you during service, and how it continues to perform after years of use are far more important than a shiny finish. That’s exactly why my opinion of Kurouchi knives changed so dramatically.

    At Asaoya Yaichi, we carefully select authentic handcrafted Tosa knives made by experienced Japanese blacksmiths. Every knife is forged using traditional techniques that have been refined over generations, with an emphasis on performance, durability, and practical everyday use.

    Whether you choose a polished finish, Damascus, or a traditional Kurouchi finish, there is no single “best” choice. Every finish has its own character and purpose. The most important thing is finding a knife that suits your cooking style, feels comfortable in your hand, and becomes a trusted tool you’ll enjoy using for many years.

    If you’ve never used a black-finished knife before, don’t let your first impression stop you. I made exactly the same mistake. Sometimes the knives that impress you the most aren’t the ones that shine the brightest—they’re the ones that quietly earn your trust every single day.

    Explore our collection and discover the handcrafted Tosa knife that could become part of your own story.

    Explore the collection at:

    https://www.asaoyayaichi.com.au

    From Tosa, Japan, to your kitchen.

  • A Knife That Earned My Respect

    A Knife That Earned My Respect

    Part 2 – A Knife That Grows With You

    Knife Care

    The more I used traditional Tosa knives, the more I realised something.

    The blacksmith’s work doesn’t end when the knife leaves the forge.

    In many ways, that’s where the next chapter begins.

    A handcrafted knife is not meant to remain exactly as it was on the day it was made.

    It is meant to grow alongside the person who uses it.

    That may sound unusual at first.

    But after spending more than twenty-five years working as a chef, I have come to believe it is true.

    A Knife That Learns Your Hands


    A Knife That Learns Your Hands

    Every chef works differently.

    Some prefer a finer edge for delicate slicing.

    Others leave a little more strength behind the edge for heavier work.

    Some sharpen frequently.

    Others wait until the knife tells them it is time.

    None of these approaches are necessarily right or wrong.

    Over time, every sharpening subtly changes the knife.

    Every service leaves another memory.

    Every meal adds another chapter.

    Eventually, something remarkable happens.

    The knife no longer feels like a tool made by someone else.

    It feels like your knife.

    That is why I often say a great knife isn’t finished by the blacksmith alone.

    The blacksmith begins the story.

    The owner completes it.

    Beauty Beyond Perfection


    240mm Thick Deba Aogami #2 Kurouchi Walnut Handl

    When many people imagine a premium Japanese knife, they picture a flawless mirror finish.

    I used to think the same way.

    Today, I see beauty differently.

    A softened Kurouchi finish.

    A natural patina on carbon steel.

    Small marks left behind after years of careful sharpening.

    These are not imperfections.

    They are evidence of a knife that has been trusted.

    To me, that is a far more meaningful kind of beauty.

    It reminds me of the Japanese philosophy often described as Wabi-Sabi—finding beauty in authenticity, simplicity and the passage of time.

    The character of a handcrafted knife is not frozen on the day it is forged.

    It continues to evolve with every meal it helps create.

    Different Regions, Different Traditions


    150mm Kiritsuke Thick Deba Aogami #2 Kurouchi Walnut Octagonal Handle

    Japan is home to many extraordinary knife-making regions.

    Sakai is renowned for its precision and refined finishing.

    Kyoto is admired for its elegance and long tradition of craftsmanship.

    I have enormous respect for both.

    Tosa simply tells a different story.

    Its blacksmiths were shaped by a region where tools were expected to work hard every single day.

    Generations of craftsmen forged tools for farming, forestry and fishing long before they became known for kitchen knives.

    That heritage is still visible today.

    A Tosa knife doesn’t try to hide where it came from.

    Its forged texture, Kurouchi finish and practical design proudly reflect its working roots.

    That is exactly what many people come to appreciate.

    Some collectors are captivated by the refined elegance of Sakai or Kyoto.

    Others are drawn to the rugged honesty of Tosa.

    Many enjoy collecting knives from different regions because each one tells a different story about Japan’s remarkable craft traditions.

    It isn’t about deciding which is better.

    It is about appreciating the unique character each tradition offers.

    Why Asaoya Yaichi Exists

    Ishizuchi Kanamono Manufactory

    People sometimes ask why I decided to start Asaoya Yaichi.

    The answer is simple.

    I wanted to introduce Australians to authentic handcrafted Tosa knives.

    Not because they are fashionable.

    Not because they are the most expensive.

    But because I believe they deserve to be recognised for what they truly are.

    For too long, I have seen mass-produced knives marketed as “Japanese knives” without representing the traditions that made Japanese craftsmanship respected around the world.

    That isn’t what I wanted to share.

    I wanted to introduce knives with a genuine story.

    Knives made by skilled blacksmiths whose techniques have been handed down through generations.

    Knives that improve with care instead of losing their value.

    Knives that can still be used decades from now—just like the Yanagiba my mother used for around twenty years before passing it on to me, and that I’ve continued using for another twenty.

    That knife reminds me that a truly great knife isn’t measured by how it looks on the first day.

    It’s measured by how faithfully it serves over a lifetime.

    More Than Selling Knives

    Working with Ishizuchi Kanamono Seisakusho has strengthened that belief.

    For more than a century, they have remained committed to supporting authentic craftsmanship and the people behind it.

    That philosophy reflects exactly what I hope Asaoya Yaichi can become.

    Not simply a shop.

    But a bridge.

    A bridge between the traditional blacksmiths of Tosa and the people who will use their work every day here in Australia.

    Every knife carries the skill of the craftsman who forged it.

    But its future belongs to the person who chooses to use it.

    That relationship is what makes handcrafted knives so special.

    A Final Thought

    If there is one lesson I have learned after more than twenty-five years as a chef, it is this:

    The best knife is not always the one that impresses you on the first day.

    Sometimes, the best knife is the one that quietly earns your respect over many years.

    That is exactly what happened to me.

    I didn’t fall in love with Tosa knives the moment I first picked one up.

    I fell in love with them after cooking with them.

    After sharpening them.

    After trusting them.

    That journey changed the way I looked at knives forever.

    It is also the reason Asaoya Yaichi exists today.

    If you’ve always believed traditional Japanese knives are difficult to maintain, you may be surprised.

    With a little knowledge and regular care, a handcrafted knife can stay with you for decades.

    In future articles, I’ll be sharing practical knife care, sharpening techniques, and maintenance tips to help you get the very best from your knife—whether you’re a professional chef or cooking at home.

    If this article encourages even one person to look beyond appearances and discover the craftsmanship, history and spirit behind a traditional Tosa knife, then I believe I have achieved something meaningful.

    Because we are not simply preserving knives.

    We are helping preserve the people, the skills and the traditions that continue to shape them.

    Explore Authentic Tosa Knives

    If this story resonates with you, I’d be honoured to welcome you to Asaoya Yaichi.

    Every knife in our collection is carefully sourced through Ishizuchi Kanamono Seisakusho and handcrafted by traditional blacksmiths in Tosa, Japan.

    These are not simply knives to own.

    They are knives to use.

    To maintain.

    To sharpen.

    To grow with.

    Explore our handcrafted Tosa knife collection:

    👉 https://www.asaoyayaichi.com.au

    Read more articles about Japanese knives and knife care:

    👉 https://blog.asaoyayaichi.com.au

    Thank you for taking the time to read my story.

    The blacksmith begins the story.

    Time shapes the knife.

    The person who uses it gives it its soul.

  • Carbon Steel vs Stainless Steel: Which Japanese Knife Is Right for You?

    Carbon Steel vs Stainless Steel: Which Japanese Knife Is Right for You?

    Introduction

    Carbon Steel vs Stainless Steel is one of the biggest decisions when choosing a Japanese knife.

    If you’ve started looking for a Japanese knife, you’ve probably come across one of the most common questions:

    Should I choose carbon steel or stainless steel?

    It’s a question I get asked regularly, and the truth is simple:

    There isn’t one “best” choice.

    Both carbon steel and stainless steel have their own strengths, and the right knife depends on your cooking style, how much maintenance you’re happy to do, and what you expect from your knife.

    After working as a chef in Japan and Australia for more than 25 years, I’ve used both throughout my career. Rather than believing one is better than the other, I’ve learned that each has its place in the kitchen.

    Carbon Steel Knives


    180mm Santoku Aogami #2 Green Micarta Handle with Turquoise Spacer

    For generations, carbon steel has been the preferred choice of many professional chefs and traditional Japanese blacksmiths.

    Why?

    Because few materials can match its cutting performance.

    Carbon steel takes an incredibly sharp edge, is easy to sharpen, and provides a cutting feel that many chefs simply love.

    Advantages of Carbon Steel

    • Exceptional sharpness
    • Excellent edge retention
    • Easy to sharpen
    • Traditional choice among professional chefs
    • Ideal for mirror polishing and traditional Japanese finishes

    Things to Consider

    Carbon steel does require care.

    If left wet after use, it can rust. Drying the blade immediately and performing occasional maintenance are simply part of owning a carbon steel knife.

    Many chefs don’t see this as a disadvantage—they see it as part of the relationship between the knife and its owner.

    Stainless Steel Knives


    180mm Santoku SG2 Rosewood Octagonal Handle

    Modern stainless steels have come a long way.

    Premium steels such as VG10, Ginsan (Silver 3), and SG2 deliver outstanding performance while requiring much less maintenance than carbon steel.

    For many home cooks, stainless steel offers the perfect balance between sharpness, durability, and convenience.

    Advantages of Stainless Steel

    • Highly resistant to rust
    • Easy to maintain
    • Perfect for everyday cooking
    • Ideal for beginners
    • Available in many premium Japanese steels

    Things to Consider

    Although today’s stainless steels perform exceptionally well, many chefs still prefer the sharpening characteristics and cutting feel of traditional carbon steel.

    Mirror Polish – One of Carbon Steel’s Hidden Beauties

    Another reason many knife enthusiasts love carbon steel is how beautifully it can be polished.

    Carbon steel responds extremely well to polishing, making it easier to achieve a deep mirror finish.

    Traditional Japanese finishes, including mirror polish and kasumi finishes, are often created on carbon steel blades because of the way the steel responds during polishing.

    Stainless steel can certainly be polished to a mirror finish too—especially premium steels like VG10 and SG2—but because these steels are harder and more wear resistant, achieving the same finish usually takes more time and effort.

    If you appreciate beautiful handcrafted knives, carbon steel offers something truly special.

    Another Unique Beauty of Carbon Steel – The Traditional Kurouchi Finish


    210mm Sujihiki Aogami #2 Kurouchi Magnolia はHandle

    Another unique beauty of carbon steel knives is the kurouchi finish, a traditional feature commonly found on handcrafted Tosa knives.

    Kurouchi refers to the dark, rustic surface left on the blade during the forging process. Rather than polishing it away, the black oxide layer is intentionally preserved, giving each knife a distinctive handcrafted appearance and a character that reflects traditional Japanese craftsmanship.

    Beyond its unique appearance, the kurouchi finish also offers a practical benefit. The black oxide layer can provide some protection against rust on the upper part of the blade compared with a fully polished carbon steel blade.

    However, it’s important to remember that a kurouchi knife is still a carbon steel knife. The exposed cutting edge and any polished areas can still rust if left wet, so proper care and drying after use are still essential.

    For many knife enthusiasts, this combination is part of the appeal—a blade that offers exceptional cutting performance, traditional beauty, and practical functionality all in one.

    One of the reasons I personally enjoy kurouchi knives is that they develop their own character over time. Every scratch, every sharpening session, and every meal prepared tells part of the knife’s story, making it feel even more personal with years of use.

    My Personal Perspective After More Than 25 Years as a Chef

    People are sometimes surprised by my answer when they ask which steel I prefer.

    To be honest, I’m not particularly good at keeping up with knife maintenance.

    Because of that, I often reach for stainless steel knives during preparation work.

    When I’m busy with prep, practicality matters. Stainless steel is reliable, easy to maintain, and lets me focus on cooking rather than worrying about wiping the blade every few minutes.

    But my choice changes when I’m working in front of guests.

    When I’m behind the counter, preparing food where customers can watch every movement, sharpness becomes even more important—but so does presentation.

    On those occasions, I often choose a high-quality carbon steel knife that I’ve polished to a mirror finish.

    The incredibly sharp edge, the elegant appearance, and the craftsmanship of a beautifully polished blade all become part of the dining experience.

    To me, using a handcrafted carbon steel knife in front of guests isn’t simply about performance.

    It’s a way of showing respect—for the ingredients, for traditional Japanese craftsmanship, and for the people I’m cooking for.

    That’s why I don’t believe carbon steel is better than stainless steel, or vice versa.

    I simply believe in using the right knife for the right situation.

    Which One Should You Choose?

    Choose Carbon Steel if you:

    • Love exceptional sharpness
    • Enjoy sharpening your own knives
    • Appreciate traditional Japanese craftsmanship
    • Don’t mind spending a little extra time on maintenance
    • Want a blade that develops character over time

    Choose Stainless Steel if you:

    • Prefer low-maintenance cooking
    • Want excellent rust resistance
    • Are buying your first Japanese knife
    • Need a dependable knife for everyday use
    • Want outstanding performance with minimal upkeep

    Final Thoughts

    The best Japanese knife isn’t necessarily the most expensive one or the one made from the hardest steel.

    It’s the knife that suits your cooking style, your experience, and the way you enjoy preparing food.

    At Asaoya Yaichi, we carefully source authentic handcrafted Japanese knives directly from Tosa, Japan, working with skilled blacksmiths and trusted manufacturers who continue generations of traditional craftsmanship.

    Whether you’re looking for a beautifully handcrafted carbon steel knife or a premium stainless steel blade, our goal is simple:

    To help you find a knife you’ll genuinely enjoy using for many years to come.

    Explore Our Collection

    If you’re interested in authentic Japanese knives forged in Tosa, we’d love to help you find the perfect one.

    Browse our collection:

    👉 https://www.asaoyayaichi.com.au

    You may also enjoy these guides:

    Each article is written from my own experience as a chef with more than 25 years of working in professional kitchens across Japan and Australia.

    Thank you for reading, and I hope this guide helps you choose the Japanese knife that’s right for you.

    Bringing Authenticity to You.