Don't use metal utensils in the microwave oven: because utensils such as iron (this kind of eight-treasure porridge is an iron can), aluminum, stainless steel, enamel and so on. When put into the oven, the microwave oven will generate electric sparks and reflect microwaves, which will not only damage the furnace body but also heat the uncooked food.
Avoid using closed containers in microwave ovens (this kind of eight-treasure porridge is a closed container): when heating liquid, use wide-mouth containers, because the heat generated by food heating in closed containers is not easy to dissipate, which makes the pressure in the containers too high and easy to cause explosion accidents. Even if you use shells to cook food, you should pierce the shells with needles or chopsticks in advance to avoid bursting after heating, splashing out to pollute the furnace wall or injuring people.