Normally, simply speaking, microwave ovens generate heat by emitting microwaves, which makes water molecules in food move violently at high speed. Old-fashioned microwave ovens move microwaves back and forth through a rotating reflector at the top. Later, most of the glass plates on the market rotate at the bottom, so that food can receive microwaves evenly, thus achieving the effect of heating. However, there are two points that need to be explained. First, although the plate is spinning, if the food is put too lightly, it will also lead to heating failure. Secondly, microwave has a characteristic that it will reflect when it meets metal, so if you heat food with a stainless steel plate, the lower part, that is, the side in contact with the plate, will be heated first, and the upper part will be slower. Microwave can penetrate ordinary ceramics, glass, heat-resistant plastics, wood and bamboo, and it is the best utensil for microwave cooking. Try it, it should be one of the reasons. Ha ha.