Can you steam the rice bowl in the rice cooker?
Metals have very strong reflexes because the molecules of metals are tightly arranged. If the metal is put into the microwave oven and is reflected everywhere, not only the microwave can not be absorbed and heated by the food, but it may be reflected back on the emitter and damaged the emitter. Therefore, no metal vessel can be used, nor can an iron bowl.
Microwave ovens are not allowed to use iron bowls, because microwave ovens emit microwaves, causing molecules or atoms of objects to vibrate at a high speed. The heat produced by a shock causes an object to rise in temperature. Metal atoms are more reactive, faster and faster in vibration, so they are unsafe.
The rice cooker is OK, but the iron bowl is slow to heat. It takes a little longer.
