Is it okay to wash an iron frying pan with detergent?

To maintain the oil coating, it is best to wash it with lukewarm water. However, if there is significant dirt or residue, using detergent is fine. If the oil coating is removed, re-season the pan before use.

How often should I sharpen my knife?

It depends on how frequently you use it, but you should sharpen it whenever you feel the cutting performance has declined.

Which whetstone should I use?

There are three main types of whetstones: coarse, medium, and finishing. A medium whetstone is sufficient for regular maintenance. For enhanced sharpness, use a finishing whetstone after the medium one. If your knife has significant chipping, use a coarse whetstone.

How should I store a wooden steamer?

Since wooden steamers are sensitive to moisture, store them in a well-ventilated area or wrap them in newspaper to prevent dampness.

There are many types of knives. How should I choose one?

Choose based on your intended use: Chef’s Knife (Gyuto, Santoku): Versatile for various cutting tasks. Paring Knife: Ideal for precision work like peeling fruits and vegetables. Deba Knife: Thick-bladed, great for filleting fish. Yanagiba Knife: Long-bladed, perfect for slicing sashimi. For more details, refer to the product selection guide on each page.

What is the difference between stainless steel and carbon steel knives?

Stainless steel is rust-resistant and easy to maintain, while carbon steel retains sharpness longer. Choose based on your preference for maintenance and sharpness.

Can I use bleach on a wooden cutting board?

It is best to avoid using bleach as it may leave residues that could transfer to food. Instead, rub the board with a cut lemon to naturally disinfect and deodorize it.

Does an iron frying pan require seasoning?

Seasoning is necessary to prevent food from sticking. While nitrided iron frying pans can be used as is, seasoning will further enhance usability.

What should I avoid when using an iron frying pan?

Do not leave food in the pan for extended periods after cooking, as salt can cause corrosion. To prolong its lifespan, transfer food to a plate or container and wash the pan promptly.

What are the shipping costs?

Shipping within Japan is a flat rate of 900 yen. International shipping costs vary depending on the destination and order weight. For more details, please refer to our international shipping information. *Depending on the destination country, import duties or taxes may apply upon arrival.

What payment methods are available?

We accept the following payment methods: Credit Card (VISA, Mastercard, JCB, American Express) / PayPal.

Can I return or exchange an item?

We do not accept cancellations, returns, or exchanges due to customer preference. However, we will accept returns in the case of damage during shipping, defective items, or incorrect shipments. In such cases, we will cover the return shipping costs. Please contact us within three days of receiving the item and keep it in its original packaging.

Yes. Please mention 'Receipt Request' in the remarks section at checkout, and we will send you a PDF receipt via email.

I am considering purchasing for business use. How can I inquire?

For bulk purchases and business inquiries, please contact us via the inquiry form. Providing your preferred delivery date and shipping address will help us process your request smoothly.

Can I order items that are not listed on the online shop?

Yes, you can order items that are not listed on our online shop. Please contact us via the inquiry form if you are interested.

Can I place a custom order?

Yes, we accept custom orders. If you are interested, please contact us via the inquiry form.

I would like to carry Tomoe-ya products in my store. How can I contact you?

Please contact us via the inquiry form so we can discuss the details.

The charged amount on my credit card is different from my order total. What could be the reason?

Fluctuations in exchange rates and foreign transaction fees charged by your credit card company may cause discrepancies between the order total and the charged amount. Please contact your credit card company for details. If the difference is not due to additional fees from your card provider, please reach out to us via the inquiry form.

When can I expect my order to arrive?

For domestic deliveries in Japan, orders usually arrive within 1 to 4 days after shipping. For international deliveries, it typically takes 4 to 10 days depending on the destination. For more details, please check here.

How long does it take to ship an order after purchase?

For items in stock, we will ship within one week after payment confirmation. If there is a delay in shipping, we will notify you via email with the estimated delivery date.

I entered the wrong shipping address for my order. Can I change it?

If your order has not yet been shipped, we can update the shipping address. Please contact us as soon as possible. Once the order has been shipped, we cannot change the address. If the package is returned to us due to an incorrect address, you will need to cover the return and reshipping fees. Please ensure your address is correct when placing your order.

Do you offer unattended (drop-off) delivery?

Yes, we offer unattended delivery. However, please note that we cannot be held responsible for any loss or issues that may occur after delivery.

My package was returned. Can it be reshipped?

Yes, we can reship your package if you cover the shipping cost again. However, if the return was due to an incorrect address or an unattended delivery, we cannot offer a refund. Please ensure your shipping details are correct when placing your order.

Can I place an order from Japan and have it shipped overseas?

Yes, you can. Please enter your desired international shipping address at checkout.

Can I choose the shipping carrier?

Domestic deliveries are handled by Sagawa Express, and international shipments are sent via EMS. We do not accept requests for specific carriers. Thank you for your understanding.

Can I specify the delivery date and time?

We are sorry, but we do not accept specific delivery date and time requests. Your order will be delivered as soon as possible.

Do you offer knife repair services?

Yes, we can repair knives purchased from our store, except in cases of severe damage. We also accept repairs for knives purchased elsewhere, but some may not be covered under our warranty.

Do you offer repairs for kitchen tools?

The possibility and cost of repairs depend on the item and its condition. Please contact us via the inquiry form for more details.

Do you offer a resurfacing service for wooden cutting boards?

Yes, we offer a resurfacing service to extend the lifespan of your wooden cutting board. The cost varies depending on the thickness removed, so please feel free to inquire. Please note that shipping costs are the customer's responsibility.

Do you offer knife engraving and gift wrapping?

Yes, we offer engraving and gift wrapping for knives (excluding some models). If you would like these services, please select them on the product page and add them to your cart. Knives make popular and recommended gifts.

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本間製作所

Koinu brand 18-8 square cooking tray / Honma Seisakusho

$90.00

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vailable in a wide range of sizes for efficient storage. Same sizes can be stacked neatly. Made of durable stainless steel.

Honma Seisakusho, based in Tsubame-Sanjo—the town of kitchenware—is known for simple, timeless designs that fit any space. Trusted by luxury hotels and restaurants for years, their products are built for lasting use.

The Koinu-jirushi ("Puppy Mark") brand was named with the hope that customers will grow attached to these tools over time, just as one would raise a puppy—with care and affection.

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Japanese Handiwork coloring your life

Sharpness crafted from high-quality copper, skilled manufacturing techniques, and beautiful form with excellent functionality...
Japanese handiwork is said to be among the best in the world.
The tools for a lifetime grow more cherished with care, gradually becoming ingrained in one's hands.
We believe Japanese crafting brings happiness to not only creators but also users.