As the name suggests, lunch box is a box containing food, which can also be said to be Bento. It mainly includes thermal insulation lunch box, microwave oven Bento, plastic Bento, etc. Many office workers cook their own meals, put them in lunch boxes and heat them in a microwave oven. However, some lunch boxes can not be heated in the microwave oven, so some materials can not absorb electromagnetic waves. If they are not used properly, they will even cause explosion.
1. Metal lunch box that cannot be penetrated by electromagnetic wave
Aluminum pot, stainless steel pot and other metal lunch boxes cannot be penetrated by microwave, and contact with metal will cause fire on the inner wall of the furnace.
2. Heat resistant plastic lunch box
Ordinary plastic lunch boxes cannot be used as microwave cooking bowls.
3. Heat resistant glass lunch box
The temperature may be high when cooking with oil, and the glass lunch box is easy to break, so the heat-resistant glass lunch box cannot be used.
4. Lacquerware Bento
When heated, the paint on lacquerware bentos will fall off and melt, producing harmful substances, the container will also be scratched, and heated food is not healthy to eat.