A. When used in microwave oven, if there are more oil and sugar in food, the box will be deformed when the temperature rises sharply. Therefore, microwave oven box is the best way to heat the food mentioned above. The bubble of carbonated beverage (soda, cola, etc.) will make the sealing capacity of the box lose. Foaming food or fermented food, hot food, etc. will make the sealing performance of the box decline. Please avoid storing such food in the box as far as possible.