Ordinary plastic lunch boxes have poor heat resistance; the temperature may be very high when food is cooked, which may easily break the glass lunch boxes; aluminum pans, enamel pans and stainless steel pans and other metal lunch boxes cannot penetrate by microwave, and the inner wall of the furnace will spark when it touches metal Phenomenon: The lacquer on the lacquerware lunch box may peel off and melt after being heated, producing harmful substances, the container may also crack, and eating heated food is not good for health. These 4 kinds of lunch boxes are best not to be heated in a microwave oven.
The heating principle of the microwave oven is to use the high frequency of the microwave to drive the water molecules in the food to move along with it, and generate a lot of heat in the process to achieve the purpose of heating the food. At the same time, the microwave itself has a sterilization effect, which can heat up both inside and outside at the same time. It can be sterilized when heated to 70 degrees, so there is no need to heat it for too long. We can adjust the heating time in detail according to the power of the microwave oven we use. Short-time heating can not only heat sterilize, but also maintain the food flavor.