Japanese Cooking

About Us

Welcome to Kai House Japanese Knife sharpning class. Kai House studio in Iwamotocho, near the tourist spot Akihabara, is only a 10-minute train ride from Asakusa, another popular spot.

Our classes are organized by KAI Corporation which was established in 1908 and is Japan’s largest producer of kitchen knives. As you might have guessed from our long history, our ability to produce knives can be traced back to the making of katana, a samurai warrior’s sword.

Knife Sharpening Classes

Every aspiring cook needs sharp knives. Learn knife-sharpening skills from KAI Corporation, Japan’s largest knife manufacturer with a global reputation. Well-cared-for knives will last a long time.

Start time
2 hours
No. of Participants
Our studio in Iwamotocho
A whetstone to take home
JPY 5,000 per person
This is an all-inclusive class and knives will be provided in class for participants to practice on. Bringing personal knives into class is not permitted.
*Prices include tax.
*Please contact us at least two months in advance so we can try and accommodate your schedule from 10:00 a.m. to 5:00 p.m. weekdays except certain holidays.
*The deadline for reservations is 2 weeks before scheduled classes.


What languages are the classes offered in?


Which tourist spots are close-by?

Kai House studio is near Akihabara, Ueno, Asakusa, Yanaka Ginza, and Tokyo Skytree.

What is the payment method?

We accept credit-card payments, which will secure your booking. Should you need a receipt, please contact us.

What should I bring?

Aprons, recipes and everything you need in class will be provided. Please come in comfortable clothes with non-slip shoes.

Can I change my booking?

Changes to your bookings may be made up to 20 days prior to the scheduled class date. We will try our best to accommodate your request wherever possible.




Confirm Email address


LocationAdress & Map

Iwamotocho, Tokyo
Kai House
3-9-5 Iwamotocho Chiyoda, Tokyo 101-8586
*Knife Sharpening Classes are offered exclusively in this studio.

5 minute walk from Iwamotocho Station on the Toei Shinjuku Line (岩本町駅)
8 minute walk from Akihabara Station on the Yamanote Line (秋葉原駅)


For bookings using the credit card option:
Bookings are deemed confirmed upon receipt of the customer's credit card information.

For bookings using the bank transfer option:
Bookings are deemed confirmed once the customer and Kai House Japanese Cooking agree upon the payment date.

1. Cancellation Procedure
For cancellation, please contact us by clicking on the link provided in our email. Kai House Japanese Cooking will send the customer two emails. The first email automatically acknowledges the cancellation request, which constitutes the receipt of the customer’s cancellation. The second email confirms the cancellation with a description of the cancellation procedure, including a cancellation fee, if applicable. However, if either or both of these emails have not been received within a reasonable amount of time, please contact us at (+81)-3-3862-6413.

2. Cancellation Fee
Once the cancellation is confirmed, a cancellation fee applies as follows (based on Japan Standard Time):
• Cancellations received more than 7 days prior to the scheduled class date – 0% of the full amount (incl. tax)
• Cancellations received 5 to 7 days prior to the scheduled class date – 30% • Cancellations received 2 to 4 days prior to the scheduled class date – 50% • Cancellations received 1 day prior to, or on the date of, the scheduled class date – 100%

3. Cancellation Fee Payment
For bookings using the credit card option:
Cancellation fees will be automatically deducted from the customer’s credit card.

For bookings using the bank transfer option:
Cancellation fees must be paid by bank transfer by the date specified in the email from Kai House Japanese Cooking confirming the cancellation.

Privacy Policy
Kai corporation and each of the companies in KAI Group consider that the protection of customers' personal information is a material social responsibility, as well as a legal obligation. Our company hereby prescribes the privacy policy as set out below in order to respect and protect customers' rights regarding their personal information:

1. Acquisition and Usage of Personal Information
The acquisition of customers' personal information shall be conducted through appropriate means, and our company shall specify wherever possible the purpose of usage and give notice of such purpose to (a) relevant customer(s) or make public announcements on company websites, etc. The company will handle such acquired personal information according to the purpose for which it was gathered.

2. Provision of Personal Information
The company will not provide customers' personal information to any third party other than to companies to which it entrusts business, without the consent of customers. If the company uses the personal information jointly with each company or special agents, etc., of the KAI Group, the company will expressly indicate or make a public announcement regarding the details of such parties jointly using such personal information, the purpose of usage and other prescribed matters; provided, however, the foregoing provision shall not be applied in cases where the contrary is set forth by laws or regulations or where cooperation with public organization(s) is required.

3. Safety Management of Personal Information
The company will take technical measures in order to prevent unauthorized access to, or the loss of, the destruction of, the falsification or leakage of, personal information; and will make efforts to protect customers' personal information by preparing a safety management system.

4. Public Announcement of Purpose and Request for Disclosure and/or Corrections, etc.
The company will publicly announce the purpose of usage regarding the customers' information that it holds, will provide company contact information, and will reply, to a reasonable extent, in accordance with procedures set forth, and in good faith, to requests for disclosure, correction, suspension of usage and deletion, etc.

5. Compliance with Laws and Regulations
The company will comply with laws and regulations concerning personal information, relevant provisions and guidelines, and fulfill its liability of social responsibility as a business enterprise.

6. Continuing Improvement
The company will continuously review and improve the compliance program (plan for the compliance of laws and regulations) in order to ensure the protection of personal information.

November 22, 2007
KAI Group

Contacting Us
If there are any questions regarding this privacy policy you may contact us using the information below.
Tokyo, Japan
Chiyoda-ku, Iwamoto-cho 3-9-5