Microwave ovens are generally used for heating, not for baking whole grains. Microwave oven is a cooking appliance that uses food to absorb microwave energy in microwave field and heat itself. Food is put into microwave electric field, and the cooking time and microwave electric field intensity are controlled by the control center to carry out various cooking processes.

The food heated by microwave is heated at the same time, so that the whole object is heated evenly and the heating speed is fast. It heats food 5 cm deep at a frequency of 2.45 billion times per second, accelerating the operation of molecules.

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The following foods are not allowed in the microwave oven:

1. Don't heat the meat half-cooked. Because bacteria will still grow in semi-cooked food, because the time is short, it is impossible to kill all bacteria by microwave heating for the second time. Frozen meat must be thawed in the microwave oven before it is heated and cooked.

2. Avoid freezing the meat thawed in the microwave oven again: Because the meat has been thawed in the microwave oven, the outer layer has actually been heated at a low temperature, and bacteria can reproduce at this temperature. Although freezing can prevent its reproduction, it can't kill the living bacteria. If the meat thawed in the microwave oven is frozen in the refrigerator again, it must be heated until it is fully cooked.

3, avoid fried food: because high-temperature oil will splash and cause fire. In case of accidental fire in the furnace, don't open the door, turn off the power first, and then open the door to cool down after the fire is extinguished.

4. Avoid overtime heating: food is thawed or heated in the microwave oven. If you forget to take it out, if it takes more than 2 hours, you should throw it away to avoid food poisoning.

5. Avoid using ordinary plastic containers: use special microwave oven utensils to hold food and put it in the microwave oven for heating. First of all, hot food will deform plastic containers. Second, ordinary plastics will release toxic substances, pollute food and endanger human health.

6. Avoid using metal utensils: As iron, aluminum, stainless steel, enamel and other utensils are put into the furnace, electric sparks will be generated when the microwave oven is heated, which will not only damage the furnace body, but also heat unfamiliar food.

Baidu encyclopedia-microwave oven

People's Daily Online-Taboo for microwave oven use: These foods can't enter the microwave oven.