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Trivia about kitchen knives

What is a Japanese knife?

和包丁とは

It is based on a Japanese sword, and its sharpness attracts chefs both in Japan and overseas.

Most of them are single-edged, and because of their excellent sharpness, they produce beautiful cuts without destroying the texture of the material.

It goes without saying that it also affects the taste and appearance.

It is also a feature of a single-edged blade that it cuts well and the chopping action can be done quickly.

It is also unique to Japanese knives that the handle can be removed and replaced with a new one when it gets old.

One of the advantages is that the entire knife can be repaired 100% by removing the handle. (Since western knives are integrated with the handle, only about 70% of them can be repaired.)

Japanese knives can be used for a long time with proper maintenance.

​For home use, you can use it comfortably for over 50 years.

片刃と両刃

Difference between single-edged and double-edged

It is divided into right-handed and left-handed, and the left and right are made differently.

Since it has a blade on one side, it is called a single-edged knife, and it has the disadvantage that it is difficult to cut long ingredients (carrots, etc.) straight. The single-edged blade is suitable for thinly peeling the skin of julienned and small-sized pieces, and for grated fish and sashimi, which makes a difference in the finish.

For this reason, most Japanese chefs use single-edged knives.

In terms of maintenance, it is much easier than a double-edged blade because you only need to attach the blade to one side.

 

Many of the knives used at home have a double-edged blade.

Maintenance is a little difficult because you have to sharpen left and right symmetrically, but once you get used to it, you won't mind.

Unlike single-edged blades, it can be used regardless of whether you are right-handed or left-handed.

Compared to single-edged knives, it has less thickness, so it feels lighter than it looks.

If you are going to use it for home use, I think it would be nice to have one double-edged blade.

*Not suitable for cutting fish.

Illustration of the difference between single-edged and double-edged (1200).jpg
包丁の種類

Knife types and characteristics

  • Meeting with a craftsman about booking a consultation
    Please make a reservation in advance if you would like to have a meeting or consult with a craftsman directly. Basically, it will be from 15:00 to 18:00 from Monday to Saturday, but please contact us if you would like to go outside of these hours. We will respond as much as possible. If you come without a reservation, we will give priority to those who are in production or who have made a reservation, so please understand that we cannot respond properly. Please feel free to contact us if you have any questions. *We are closed on Sundays.
  • About sharpening frequency
    For home use, once every two months will provide sufficient sharpness. (Some say once every 3 months) It's time to sharpen when you feel that the sharpness has decreased a little. If you are not confident to sharpen by yourself, please use it. It has been very well received by everyone. We also accept products from other companies. * Scheduled from the 22nd to the end of each month. (Please deposit by the 22nd.) *For mailing, there are card payment, cash on delivery, and bank transfer. (If you pay by credit card, we will send you the URL before shipping.) *Shipping fees, cash on delivery fees, and bank transfer fees are the responsibility of the customer.
  • What is the price for customization?
    Most customers stay the same price If there is an extreme change to the normal product, the labor cost will be added. In that case, we will give you a free estimate before making it, so please do not worry.
  • About payment
    ① cash on delivery. You can pay with cash or card. * Cash-on-delivery fee is free. ②Bank transfer/postal transfer We will contact you as soon as we are ready to ship. We will ship the product after confirming payment. *Transfer fees are to be borne by the customer. ③Card payment We will send you an email with a dedicated online payment URL before the product is shipped. We accept VISA and MasterCard. *Cash-on-delivery fee will be charged for maintenance. For details, please see Payment Methods.
  • About returns/exchanges/refunds
    If you wish to return/exchange/refund the item, please return the item to us within 7 days after the item arrives. In the case of defective products, our workshop will bear the shipping costs for returns and exchanges. However, we cannot accept returns in the following cases. *Products used *Products with your name engraved on the knife/ordered products *Items damaged by the customer *Products that have lost the product label at the time of delivery Customers are responsible for the return shipping fee for non-defective products. The refund will be transferred to the customer's account after the product arrives.
  • Cancellation
    Cancellations cannot be accepted after the name has been engraved. *It is possible if it is before the name is engraved. Please contact us. If the product has been shipped, the customer will be responsible for the shipping and return shipping charges. *Transfer fees are the responsibility of the customer. Please note that ordered products cannot be canceled and cannot be returned or refunded.
  • About delivery date
    In Stock If you would like furoshiki wrapping, we will ship it within 5 business days. If you don't want furoshiki wrapping, it will be shipped within 3 business days. If you wish to engrave your name on the knife, it will be shipped within 7 to 10 business days. *For more information, please see the "Regarding name engraving (FAQ)" below. *We will contact you in advance by e-mail or phone if the delivery is delayed due to the small number of people involved in handwork. Thank you for your understanding. About out of stock and delivery of custom-made products. We will inform you of the delivery details by email or phone. *The average delivery time is 30 to 60 days due to manual work. Some products may require more than 60 days for delivery. In any case, if the item is out of stock, we will contact you by email or phone to inform you of the delivery schedule.
  • about shipping cost
    Free if you purchase a knife. Other products are 11,000 yen (including tax) and free shipping. Shipping cost less than 11.000 yen: Within 100cm/10kg Hokkaido 1,400 yen, Tohoku 950 yen, Kanto 750 yen, Chubu 730 yen, Kansai 660 yen, Chugoku 660 yen, Shikoku 580 yen, Kyushu 730 yen, Okinawa 2,200 yen
  • Is it possible to send overseas?
    It is possible. Shipping costs vary by country. Please contact us. Cash on delivery and card payment upon delivery are not available.
  • About gifts
    It can be delivered directly to the person receiving the gift. *Please refrain from sending invoices that show the price
  • About name engraving
    You can put your name on the knife. You can also enter your favorite words. Hand-carved stamps are kanji, katakana, hiragana, and alphabets are laser engraved. If you want to engrave the name, it will be shipped within 7 to 10 business days because it is requested by a professional engraver. We will provide a service for the name engraving fee.
  • About the receipt
    When ordering, please let us know your name and request a receipt by email, fax, or phone.
  • About wrapping
    Wrapping is free. Please select the type of furoshiki from the product purchase page of web shop.
  • Precautions for use
    ・Do not use for purposes other than cooking. ・Store in a safe place out of reach of children. ・Because it is a delicate blade, please do not cut hard ingredients or fish bones with a double edge or Yanagiba other than Deba. ・Do not cut frozen food or ice, or use it for other purposes. ・After use, wash with a neutral detergent and wipe dry. ・Do not use dishwasher, dryer or bleach. ・Avoid prolonged contact with metal products as it may cause rust. ・Be careful not to subject it to shocks such as dropping it in the sink or on the floor. ・Do not apply heat such as heating the knife with fire. ・Because it is a hammered knife, we recommend maintenance with a whetstone.
  • Specified commercial law
    Store name: Tosa Knife Studio Tadokoro Cutlery Seller Name: Tadokoro Cutlery Makoto Tadokoro Makoto Tadokoro Name of Sales Manager Location 5586-24 Hasuke, Tosa City, Kochi Prefecture 781-1143 Phone number 088-854-9912 FAX number 088-854-4100 Email address tadokorohamono@gmail.com Homepage URL tadokorohamono-marushin888.com Product sales ・Product delivery time (if in stock) If you would like furoshiki wrapping, we will ship it within 5 business days. If you don't want furoshiki wrapping, it will be shipped within 3 business days. If you wish to engrave your name on the knife, it will be shipped within 7 to 10 business days. *For more information, please see the "Regarding name engraving (FAQ)" below. *If the delivery is delayed than the above due to the small number of people working by hand, we will contact you in advance by email or phone. Thank you for your understanding. In case of out of stock and delivery of custom-made products ・We will inform you of the delivery date details by e-mail or telephone. *The average delivery time is 30 to 60 days due to manual work. Some products may require more than 60 days for delivery. At any rate, if the item is out of stock, we will contact you by email or phone with the estimated delivery date. *Credit card payment is not possible for made-to-order products. Delivery method ・Delivery processing (major shipping company / post office). *Delivery date and time can be specified. Return Policy ・Please contact us within 7 days after the arrival of the product in case of damage or wrong product after the product arrives. *Shipping costs will be covered by our company. ・If you wish to return a product that is not defective, please return it to us within 7 days after the product arrives. *The customer is responsible for the round-trip shipping fee. ・Refunds will be made within 10 days after the product arrives, so please let us know your bank account. *In the case of credit card payment, it may take up to two months for the refund to be processed depending on the card used. ・However, we cannot accept returns in the following cases. Products used Items with your name on the knife Items that have been scratched or damaged by the customer Items with missing product labels Payment method and timing We accept the following payment methods. ・Bank transfer (prepayment) After confirming payment, we will ship the item. *Please refer to Product sales regarding the number of days. *If the payment cannot be confirmed within 5 days after confirming the order, it will be canceled. ・COD Please pay the product price when the product is delivered. Cash on delivery fees are borne by our company. *We will ship after your order is confirmed. *For the number of days, please see Product sales. *Credit card when purchasing at the workshop We accept VISA, MASTER, DC, and JCB cards. *Credit card payments at Yamato are not possible for overseas shipments. Credit cards cannot be used for quotes and products with price fluctuations other than maintenance and other product sales. Necessary charges other than product price Necessary charges other than product price Consumption tax (10%) *We bear the fees for cash on delivery and bank transfers.
  • Meeting with a craftsman about booking a consultation
    Please make a reservation in advance if you would like to have a meeting or consult with a craftsman directly. Basically, it will be from 15:00 to 18:00 from Monday to Saturday, but please contact us if you would like to go outside of these hours. We will respond as much as possible. If you come without a reservation, we will give priority to those who are in production or who have made a reservation, so please understand that we cannot respond properly. Please feel free to contact us if you have any questions. *We are closed on Sundays.
  • About sharpening frequency
    For home use, once every two months will provide sufficient sharpness. (Some say once every 3 months) It's time to sharpen when you feel that the sharpness has decreased a little. If you are not confident to sharpen by yourself, please use it. It has been very well received by everyone. We also accept products from other companies. * Scheduled from the 22nd to the end of each month. (Please deposit by the 22nd.) *For mailing, there are card payment, cash on delivery, and bank transfer. (If you pay by credit card, we will send you the URL before shipping.) *Shipping fees, cash on delivery fees, and bank transfer fees are the responsibility of the customer.
  • What is the price for customization?
    Most customers stay the same price If there is an extreme change to the normal product, the labor cost will be added. In that case, we will give you a free estimate before making it, so please do not worry.
  • About payment
    ① cash on delivery. You can pay with cash or card. * Cash-on-delivery fee is free. ②Bank transfer/postal transfer We will contact you as soon as we are ready to ship. We will ship the product after confirming payment. *Transfer fees are to be borne by the customer. ③Card payment We will send you an email with a dedicated online payment URL before the product is shipped. We accept VISA and MasterCard. *Cash-on-delivery fee will be charged for maintenance. For details, please see Payment Methods.
  • About returns/exchanges/refunds
    If you wish to return/exchange/refund the item, please return the item to us within 7 days after the item arrives. In the case of defective products, our workshop will bear the shipping costs for returns and exchanges. However, we cannot accept returns in the following cases. *Products used *Products with your name engraved on the knife/ordered products *Items damaged by the customer *Products that have lost the product label at the time of delivery Customers are responsible for the return shipping fee for non-defective products. The refund will be transferred to the customer's account after the product arrives.
  • Cancellation
    Cancellations cannot be accepted after the name has been engraved. *It is possible if it is before the name is engraved. Please contact us. If the product has been shipped, the customer will be responsible for the shipping and return shipping charges. *Transfer fees are the responsibility of the customer. Please note that ordered products cannot be canceled and cannot be returned or refunded.
  • About delivery date
    In Stock If you would like furoshiki wrapping, we will ship it within 5 business days. If you don't want furoshiki wrapping, it will be shipped within 3 business days. If you wish to engrave your name on the knife, it will be shipped within 7 to 10 business days. *For more information, please see the "Regarding name engraving (FAQ)" below. *We will contact you in advance by e-mail or phone if the delivery is delayed due to the small number of people involved in handwork. Thank you for your understanding. About out of stock and delivery of custom-made products. We will inform you of the delivery details by email or phone. *The average delivery time is 30 to 60 days due to manual work. Some products may require more than 60 days for delivery. In any case, if the item is out of stock, we will contact you by email or phone to inform you of the delivery schedule.
  • about shipping cost
    Free if you purchase a knife. Other products are 11,000 yen (including tax) and free shipping. Shipping cost less than 11.000 yen: Within 100cm/10kg Hokkaido 1,400 yen, Tohoku 950 yen, Kanto 750 yen, Chubu 730 yen, Kansai 660 yen, Chugoku 660 yen, Shikoku 580 yen, Kyushu 730 yen, Okinawa 2,200 yen
  • Is it possible to send overseas?
    It is possible. Shipping costs vary by country. Please contact us. Cash on delivery and card payment upon delivery are not available.
  • About gifts
    It can be delivered directly to the person receiving the gift. *Please refrain from sending invoices that show the price
  • About name engraving
    You can put your name on the knife. You can also enter your favorite words. Hand-carved stamps are kanji, katakana, hiragana, and alphabets are laser engraved. If you want to engrave the name, it will be shipped within 7 to 10 business days because it is requested by a professional engraver. We will provide a service for the name engraving fee.
  • About the receipt
    When ordering, please let us know your name and request a receipt by email, fax, or phone.
  • About wrapping
    Wrapping is free. Please select the type of furoshiki from the product purchase page of web shop.
  • Precautions for use
    ・Do not use for purposes other than cooking. ・Store in a safe place out of reach of children. ・Because it is a delicate blade, please do not cut hard ingredients or fish bones with a double edge or Yanagiba other than Deba. ・Do not cut frozen food or ice, or use it for other purposes. ・After use, wash with a neutral detergent and wipe dry. ・Do not use dishwasher, dryer or bleach. ・Avoid prolonged contact with metal products as it may cause rust. ・Be careful not to subject it to shocks such as dropping it in the sink or on the floor. ・Do not apply heat such as heating the knife with fire. ・Because it is a hammered knife, we recommend maintenance with a whetstone.
  • Specified commercial law
    Store name: Tosa Knife Studio Tadokoro Cutlery Seller Name: Tadokoro Cutlery Makoto Tadokoro Makoto Tadokoro Name of Sales Manager Location 5586-24 Hasuke, Tosa City, Kochi Prefecture 781-1143 Phone number 088-854-9912 FAX number 088-854-4100 Email address tadokorohamono@gmail.com Homepage URL tadokorohamono-marushin888.com Product sales ・Product delivery time (if in stock) If you would like furoshiki wrapping, we will ship it within 5 business days. If you don't want furoshiki wrapping, it will be shipped within 3 business days. If you wish to engrave your name on the knife, it will be shipped within 7 to 10 business days. *For more information, please see the "Regarding name engraving (FAQ)" below. *If the delivery is delayed than the above due to the small number of people working by hand, we will contact you in advance by email or phone. Thank you for your understanding. In case of out of stock and delivery of custom-made products ・We will inform you of the delivery date details by e-mail or telephone. *The average delivery time is 30 to 60 days due to manual work. Some products may require more than 60 days for delivery. At any rate, if the item is out of stock, we will contact you by email or phone with the estimated delivery date. *Credit card payment is not possible for made-to-order products. Delivery method ・Delivery processing (major shipping company / post office). *Delivery date and time can be specified. Return Policy ・Please contact us within 7 days after the arrival of the product in case of damage or wrong product after the product arrives. *Shipping costs will be covered by our company. ・If you wish to return a product that is not defective, please return it to us within 7 days after the product arrives. *The customer is responsible for the round-trip shipping fee. ・Refunds will be made within 10 days after the product arrives, so please let us know your bank account. *In the case of credit card payment, it may take up to two months for the refund to be processed depending on the card used. ・However, we cannot accept returns in the following cases. Products used Items with your name on the knife Items that have been scratched or damaged by the customer Items with missing product labels Payment method and timing We accept the following payment methods. ・Bank transfer (prepayment) After confirming payment, we will ship the item. *Please refer to Product sales regarding the number of days. *If the payment cannot be confirmed within 5 days after confirming the order, it will be canceled. ・COD Please pay the product price when the product is delivered. Cash on delivery fees are borne by our company. *We will ship after your order is confirmed. *For the number of days, please see Product sales. *Credit card when purchasing at the workshop We accept VISA, MASTER, DC, and JCB cards. *Credit card payments at Yamato are not possible for overseas shipments. Credit cards cannot be used for quotes and products with price fluctuations other than maintenance and other product sales. Necessary charges other than product price Necessary charges other than product price Consumption tax (10%) *We bear the fees for cash on delivery and bank transfers.
  • Meeting with a craftsman about booking a consultation
    Please make a reservation in advance if you would like to have a meeting or consult with a craftsman directly. Basically, it will be from 15:00 to 18:00 from Monday to Saturday, but please contact us if you would like to go outside of these hours. We will respond as much as possible. If you come without a reservation, we will give priority to those who are in production or who have made a reservation, so please understand that we cannot respond properly. Please feel free to contact us if you have any questions. *We are closed on Sundays.
  • About sharpening frequency
    For home use, once every two months will provide sufficient sharpness. (Some say once every 3 months) It's time to sharpen when you feel that the sharpness has decreased a little. If you are not confident to sharpen by yourself, please use it. It has been very well received by everyone. We also accept products from other companies. * Scheduled from the 22nd to the end of each month. (Please deposit by the 22nd.) *For mailing, there are card payment, cash on delivery, and bank transfer. (If you pay by credit card, we will send you the URL before shipping.) *Shipping fees, cash on delivery fees, and bank transfer fees are the responsibility of the customer.
  • What is the price for customization?
    Most customers stay the same price If there is an extreme change to the normal product, the labor cost will be added. In that case, we will give you a free estimate before making it, so please do not worry.
  • About payment
    ① cash on delivery. You can pay with cash or card. * Cash-on-delivery fee is free. ②Bank transfer/postal transfer We will contact you as soon as we are ready to ship. We will ship the product after confirming payment. *Transfer fees are to be borne by the customer. ③Card payment We will send you an email with a dedicated online payment URL before the product is shipped. We accept VISA and MasterCard. *Cash-on-delivery fee will be charged for maintenance. For details, please see Payment Methods.
  • About returns/exchanges/refunds
    If you wish to return/exchange/refund the item, please return the item to us within 7 days after the item arrives. In the case of defective products, our workshop will bear the shipping costs for returns and exchanges. However, we cannot accept returns in the following cases. *Products used *Products with your name engraved on the knife/ordered products *Items damaged by the customer *Products that have lost the product label at the time of delivery Customers are responsible for the return shipping fee for non-defective products. The refund will be transferred to the customer's account after the product arrives.
  • Cancellation
    Cancellations cannot be accepted after the name has been engraved. *It is possible if it is before the name is engraved. Please contact us. If the product has been shipped, the customer will be responsible for the shipping and return shipping charges. *Transfer fees are the responsibility of the customer. Please note that ordered products cannot be canceled and cannot be returned or refunded.
  • About delivery date
    In Stock If you would like furoshiki wrapping, we will ship it within 5 business days. If you don't want furoshiki wrapping, it will be shipped within 3 business days. If you wish to engrave your name on the knife, it will be shipped within 7 to 10 business days. *For more information, please see the "Regarding name engraving (FAQ)" below. *We will contact you in advance by e-mail or phone if the delivery is delayed due to the small number of people involved in handwork. Thank you for your understanding. About out of stock and delivery of custom-made products. We will inform you of the delivery details by email or phone. *The average delivery time is 30 to 60 days due to manual work. Some products may require more than 60 days for delivery. In any case, if the item is out of stock, we will contact you by email or phone to inform you of the delivery schedule.
  • about shipping cost
    Free if you purchase a knife. Other products are 11,000 yen (including tax) and free shipping. Shipping cost less than 11.000 yen: Within 100cm/10kg Hokkaido 1,400 yen, Tohoku 950 yen, Kanto 750 yen, Chubu 730 yen, Kansai 660 yen, Chugoku 660 yen, Shikoku 580 yen, Kyushu 730 yen, Okinawa 2,200 yen
  • Is it possible to send overseas?
    It is possible. Shipping costs vary by country. Please contact us. Cash on delivery and card payment upon delivery are not available.
  • About gifts
    It can be delivered directly to the person receiving the gift. *Please refrain from sending invoices that show the price
  • About name engraving
    You can put your name on the knife. You can also enter your favorite words. Hand-carved stamps are kanji, katakana, hiragana, and alphabets are laser engraved. If you want to engrave the name, it will be shipped within 7 to 10 business days because it is requested by a professional engraver. We will provide a service for the name engraving fee.
  • About the receipt
    When ordering, please let us know your name and request a receipt by email, fax, or phone.
  • About wrapping
    Wrapping is free. Please select the type of furoshiki from the product purchase page of web shop.
  • Precautions for use
    ・Do not use for purposes other than cooking. ・Store in a safe place out of reach of children. ・Because it is a delicate blade, please do not cut hard ingredients or fish bones with a double edge or Yanagiba other than Deba. ・Do not cut frozen food or ice, or use it for other purposes. ・After use, wash with a neutral detergent and wipe dry. ・Do not use dishwasher, dryer or bleach. ・Avoid prolonged contact with metal products as it may cause rust. ・Be careful not to subject it to shocks such as dropping it in the sink or on the floor. ・Do not apply heat such as heating the knife with fire. ・Because it is a hammered knife, we recommend maintenance with a whetstone.
  • Specified commercial law
    Store name: Tosa Knife Studio Tadokoro Cutlery Seller Name: Tadokoro Cutlery Makoto Tadokoro Makoto Tadokoro Name of Sales Manager Location 5586-24 Hasuke, Tosa City, Kochi Prefecture 781-1143 Phone number 088-854-9912 FAX number 088-854-4100 Email address tadokorohamono@gmail.com Homepage URL tadokorohamono-marushin888.com Product sales ・Product delivery time (if in stock) If you would like furoshiki wrapping, we will ship it within 5 business days. If you don't want furoshiki wrapping, it will be shipped within 3 business days. If you wish to engrave your name on the knife, it will be shipped within 7 to 10 business days. *For more information, please see the "Regarding name engraving (FAQ)" below. *If the delivery is delayed than the above due to the small number of people working by hand, we will contact you in advance by email or phone. Thank you for your understanding. In case of out of stock and delivery of custom-made products ・We will inform you of the delivery date details by e-mail or telephone. *The average delivery time is 30 to 60 days due to manual work. Some products may require more than 60 days for delivery. At any rate, if the item is out of stock, we will contact you by email or phone with the estimated delivery date. *Credit card payment is not possible for made-to-order products. Delivery method ・Delivery processing (major shipping company / post office). *Delivery date and time can be specified. Return Policy ・Please contact us within 7 days after the arrival of the product in case of damage or wrong product after the product arrives. *Shipping costs will be covered by our company. ・If you wish to return a product that is not defective, please return it to us within 7 days after the product arrives. *The customer is responsible for the round-trip shipping fee. ・Refunds will be made within 10 days after the product arrives, so please let us know your bank account. *In the case of credit card payment, it may take up to two months for the refund to be processed depending on the card used. ・However, we cannot accept returns in the following cases. Products used Items with your name on the knife Items that have been scratched or damaged by the customer Items with missing product labels Payment method and timing We accept the following payment methods. ・Bank transfer (prepayment) After confirming payment, we will ship the item. *Please refer to Product sales regarding the number of days. *If the payment cannot be confirmed within 5 days after confirming the order, it will be canceled. ・COD Please pay the product price when the product is delivered. Cash on delivery fees are borne by our company. *We will ship after your order is confirmed. *For the number of days, please see Product sales. *Credit card when purchasing at the workshop We accept VISA, MASTER, DC, and JCB cards. *Credit card payments at Yamato are not possible for overseas shipments. Credit cards cannot be used for quotes and products with price fluctuations other than maintenance and other product sales. Necessary charges other than product price Necessary charges other than product price Consumption tax (10%) *We bear the fees for cash on delivery and bank transfers.
鋼の種類

Types of steel (fabric) and their characteristics

All Marushin knives are made from Yasugi steel, and are manufactured from the following high-class steels required by professional chefs.

Types of steel.png

white steel

It is a well-balanced steel in terms of hardness, durability of sharpness, and resharpening. The steel is easy to sharpen even for beginners.

Ginsan steel

It is extremely close to Shirani steel and has the property of being rust-resistant. The difference from general stainless steel is that it is handmade and quenched one by one, just like the rust type. As a result, the sharpness lasts for a long time, and it is possible to sharpen the blade firmly with a household whetstone. There is no trouble that it will not cut immediately after resharpening.

V Gold No. 10

It is harder than Ginsan steel. Since the steel is hard, resharpening is a little difficult until you get used to it, but the steel is resistant to fatigue and has excellent durability. Therefore, the number of resharpening is reduced and the life of the knife is long. It is a kitchen knife that is handmade one by one like Ginsan Steel.

white steel

It is harder than Shirani steel. In terms of sharpness, it is said to be the best among steels. Another characteristic of white steel is that it is resistant to fish oil.

blue steel

It is harder than Shiraichi steel, and the sharpness lasts for a long time, and the knife has a long life.

blue steel

It is harder than Hakuni steel and requires less resharpening like V gold, so the knife has a longer life. One of the features is that it is resistant to meat fat.

本刃付け

Honbazuke / Kobazuke

Knives sold in shops are finished with a slightly thicker blade in anticipation of Honbazuke.

This process is also called small cutting.

(If you use it at home, I think that only Kobadsuke is enough.)

Even if you use a new knife as it is, the original sharpness of the knife will not come out.

When cutting soft materials, drop the small blade and thin the edge to make it sharp. (The angle of the blade is about 25 degrees for home use and about 45 degrees for professional use.)

Conversely, when cutting hard objects (pumpkins, frozen foods, and other hard foods), sharpen the blade with an obtuse angle to make it less prone to chipping.

Honbazuke is resharpening the blade to suit the intended use.

By performing this process exactly, you can demonstrate the original sharpness of the knife.

In reality, it is sometimes difficult to finish the blade perfectly, and it takes a long time (depending on the product, some knives take more than 30 minutes even for sharpeners). In most cases, a sharpener is requested.

finishing

仕上げ加工
Kasumi finish/mirror finish

Premium Kasumi polishing finish (left photo)

​Mirror finish (right photo)

Gusset mirror finish

By chamfering the gusset, it prevents your fingers from hurting or getting damaged. Furthermore, by making it a mirror surface, it becomes even smoother, feels better on the finger, and looks beautiful.

Mine (breast) shaving process

As with the gusset, the rims (breasts) are also chamfered.

柄の種類

Pattern type

Round pattern 800.jpg

・Round pattern

The cross section is circular.
The gold mouth (black part) is made of water buffalo horn and the handle is made of magnolia wood.
It is strong against water, light and hard to crack.
The material is soft, so the more you use it, the more you will get used to it.
One of its characteristics is that it does not slip even when touched with wet hands.

Octagonal pattern 800.jpg

・Octagonal pattern

The cross section is octagonal.
By making the handle octagonal, you can grip it firmly without slipping.

Ebony pattern 800.jpg

・Ebony pattern (Octagonal pattern)

The cross section is octagonal.By making the handle octagonal, you can grip it firmly without slipping.

​The material is smooth and durable.

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