The working principle of microwave oven is to use the high-speed movement of water molecules to heat food, which is similar to hot pot heating food (water molecules in food+heat conduction). However, the movement of water molecules in the microwave oven is quite violent enough to destroy the nutritional components of protein vitamins, which is why the microwave oven is convenient but not popular. Microwave ovens are mostly used to heat foods without nutrition or foods with low vitamin content in protein, such as steamed bread and noodles.
Extended data:
Precautions:
1. Before using the microwave oven, read the instructions provided by the manufacturer carefully, understand the microwave oven and accept the instructions. If the power supply is insufficient, the light in the furnace will appear dim. If you continue to use it at this time, it will damage the safety equipment and you should stop using it immediately.
2, avoid overtime heating, food in the microwave oven to thaw or heat, if you forget to take it out, if more than 2 hours, you should throw it away, so as not to cause food poisoning.
3. Avoid heating ordinary plastic containers in the microwave oven. One is that hot food will deform the container, and the other is that ordinary plastics will release toxic substances, pollute food and endanger human health.
4. Avoid heating the meat until it is half cooked before heating it in the microwave oven. Bacteria in semi-cooked food have not been completely killed. Even if it is put in the refrigerator, bacteria will still grow. When it is heated in the microwave oven for the second time, it is impossible to kill all the bacteria because the time is too short. Frozen meat must be thawed in the microwave oven before it is heated and cooked.
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