1. If there is seasoning on the lunch box, take it off first, then heat it, and then pour the seasoning into the lunch box.

2. Cartons without mimeographs can be put in and heated directly. If they are packed in foam boxes, don't put them in. If the high temperature heating is not good, it is best to pour out the food and heat it in a porcelain bowl or a special microwave container.

3. Bento originated from the word "bento" in the Southern Song Dynasty in China, which originally meant "convenient things, convenience and smoothness". After it was introduced into Japan, it was marked with "service road", "distinguishing road" and "distinguishing time", but after it was introduced into China, it was simplified and translated into bento.

4. bento is used to be called "bento" in most parts of mainland China, that is, bento. In Taiwan Province Province, it is generally called bento, which is generally used for lunch, take-out and work meals. There is no subtle difference in usage between "bento" and "bento", but the usage is different.