Koinu Brand ｜ Round School Lunch Can Mini

This is the "Mini Round Kyushoku-kan (school lunch container)" from Ko-inu Jirushi, a company founded in 1950 in Tsubame City, Niigata Prefecture, "the city of manufacturing," that continues to create simple, functional, professional-grade cooking utensils. This "Mini Kyushoku-kan" alone can handle food storage, warming, and transport. The lid, with its silicone rubber gasket and three latches, provides a secure seal, so you can safely store strong-smelling dishes or soups. The lid also features a knob that allows air to pass through, making it easy to remove even when changes in internal and external pressure make it difficult to open – a carefully designed feature. It can be used with both gas and induction cooktops.
See all Ko-inu Jirushi products here

Easy to Warm

Simply transfer leftover dinner to the Mini Kyushoku-kan and store it directly in the refrigerator. The next day, you can take it out of the refrigerator and warm it as is. The Mini Kyushoku-kan handles this otherwise troublesome step with ease.

90-Degree Rotating Handle

Furthermore, it features a uniquely developed 90-degree rotating handle. The handle stops at a 90-degree position where it won't be exposed to the flame when placed on the stove, making it less likely to get hot when you remove it from the heat – a user-friendly design. (The handle will get hot when removed from the heat. Please use oven mitts or similar.)
*The handle has been renewed and improved for easier handling. (November 30, 2025)

Securely Sealed, No Spills

One of the charms of the Mini Kyushoku-kan is its high sealing performance. It comes with a silicone rubber gasket that securely fastens to the lid, designed to prevent spills. Additionally, three sturdy latches firmly secure the lid to the body. You can safely carry liquids such as vegetable soup or stew without worry.

No Leaking Odors

Thanks to the silicone rubber gasket and latches, it is securely sealed, which is a welcome feature as it prevents food odors from leaking. You can confidently store "delicious but strong-smelling foods" in the refrigerator, such as leftover curry made in bulk or kimchi hotpot to be made into zosui the next day.

Easy to Wash, Easy to Use

Have you ever been troubled by color or odor transfer when storing food?
The Mini Kyushoku-kan is made of stainless steel, so it is resistant to color transfer and allows for thorough washing away of accumulated dirt. Furthermore, the silicone rubber gasket on the lid can also be removed and washed, so you can always use it in a clean state.

Easy Opening and Closing with a Push

Generally, when hot food is placed in a container and sealed, the internal pressure changes, making the lid difficult to open. To prevent this, the Mini Kyushoku-kan has a knob on the lid that allows air to pass through. Simply push the knob to easily open and close it, preventing spills that might occur when trying to force it open.
[By pushing the knob, outside air enters the container, eliminating pressure differences and making it easy to remove the lid.]

A Companion for Various Occasions

With its stylish design, it looks perfectly at home on the dining table even when filled with food. You can use it in various ways, such as serving stew or curry for everyone to help themselves, or enjoying cheese fondue with your family. It can be used with gas stoves, IH, and even direct flame, making it perfect for outdoor scenes. Why not make the Mini Kyushoku-kan, convenient for storage, warming, and carrying, a star in various settings?


【Ko-inu Jirushi】
Ko-inu Jirushi is a brand of Honma Seisakusho, founded in 1950 in Tsubame City, Niigata Prefecture, "the city of manufacturing." The cooking utensils produced by Ko-inu Jirushi, which continues to create simple, functional, professional-grade cooking utensils, are imbued with the desires for "satisfaction gained from using them," "for customers to use the products with affection," and "for customers to nurture them by continuing to use them."

See all Ko-inu Jirushi products here


【Product Name】Mini Round Kyushoku-kan
【Size (approx.)】Body: Inner diameter Φ140 (Outer diameter Φ150) × Depth 120mm (Overall height with lid closed 134mm)
【Capacity (approx.)】1.8L (when full)
【Weight (approx.)】827g (including lid)
【Material】Body: Stainless steel (19% chromium) Thickness 1.0mm, Handle: Stainless steel, Lid: SUS304 Stainless steel (18% chromium, 8% nickel), Silicone rubber gasket: Silicone resin (Heat resistance -20 to 220 degrees Celsius)
【Country of Origin】Japan (Tsubame City, Niigata Prefecture)
【Remarks】The handle has been renewed and improved for easier handling.
*This product is the successor to the Mini Kyushoku-kan (Product No. 57314) (JAN: 4954057573146).
●Before Purchase
・Minor scratches and unevenness may be seen at the joints. Please understand that these are due to the manufacturing process.
● Usage Precautions
Induction cooker ○, Gas ○, Halogen heater ○, Sheath heater ○, Radiant heater ○
・Do not treat this as a cooking utensil like a pot. While it can be heated with various heat sources, it is intended for warming and not for full-scale cooking.
・Since it is a sealed container with a silicone rubber gasket, always remove the lid when heating.
・Do not dry boil.
・Wash well and dry after use.
・The handle may become hot. Be careful of burns.