KOHCHOSAI KOSUGA Lunch Box Bento

No, this bamboo lunch box is not suitable for microwave or dishwasher use. To preserve the natural material and the finish, we recommend hand washing with mild soap and drying it thoroughly with a soft cloth.

A 400ml capacity is ideal for a light to moderate lunch, such as a standard portion of rice with a side dish or a small salad. It is designed for those who prefer compact, portion-controlled meals rather than large, bulky lunches.

This bento box features a traditional, friction-fit lid rather than a silicone gasket seal. It is best suited for dry foods like rice, sushi, or sandwiches; it is not designed to hold soups, sauces, or very liquid-heavy meals.

Bamboo is durable, but it benefits from occasional maintenance. If the wood begins to look dry, you can lightly rub it with a food-safe mineral oil to restore its luster and prevent cracking.

The black finish is applied to highlight the natural bamboo grain rather than hide it. It provides a sophisticated, matte look that is durable for daily use, though it should be handled with care to avoid scratching the surface with sharp utensils.