A very light and easy-to-handle paulownia bowl. Rice can be frozen or warmed in the microwave. It is washable and easy to clean. It is warmed up plump by the power of steam. When heated in the microwave, the moisture absorbed by the paulownia becomes steam and releases and fills it. The rice inside is warmed up thoroughly, and at the same time, excess heat and steam are released from the lid and the gap in the main body. It will be plump and freshly cooked. Frozen rice comes back to life. Humidity control effect that keeps it delicious It absorbs excess steam from freshly cooked rice and releases moisture as it dries. The rice is not greasy and maintains a moderate amount of moisture, so you can enjoy it at any time. The main unit does not heat up easily Paulownia is a wood with very low thermal conductivity, so even if you heat it in the microwave, the main unit will not heat up easily and you can take it out immediately. Can be used as a teacup It has a well-rounded shape, so you can use it at the table after thawing and wash one less thing. It can be used not only for white rice, but also for a variety of dishes such as eel bowls, multigrain rice, chirashi sushi, and soboro rice bowls. We have three sizes: small, medium, and large.