Containers that cannot be heated by microwave oven:
1, avoid using ordinary plastic containers.
One is that hot food will deform plastic containers, and the other is that ordinary plastics will release toxic substances, pollute food and endanger human health. Use special microwave utensils to hold food and put it in the microwave oven for heating.
2. Avoid using metal appliances.
Because there are iron, aluminum, stainless steel, enamel and other utensils in the furnace, electric sparks will be generated when the microwave oven is heated, which will not only damage the furnace body, but also heat the uncooked food.
3. Avoid using closed containers.
Wide-mouth containers should be used when heating liquid, because the heat generated by heating food in a closed container is not easy to dissipate, which makes the pressure in the container too high and easily leads to blasting accidents. Even if you cook food with shells, you should pierce the shells with needles or chopsticks in advance to avoid bursting after heating, splashing out to pollute the furnace wall or hurting people.
Extended data:
Matters needing attention in the use of microwave oven:
1. When using the microwave oven, people should not lean in front of the microwave oven or stay beside it all the time. It is best to stand one meter away from the microwave oven to avoid electromagnetic radiation.
2. When heating liquid food, you should use a wide-mouth container or no cover for heating. If heated in a closed container, the hot air generated by food cannot be released, and it is easy to burst if the pressure is too high.
3, can't use ordinary plastic containers to heat food. Plastic things are easy to soften and deform when heated, which will produce some toxic gases and affect food and people's health.
If the food is heated for a long time, you must not eat it again. Food may be mutated or lose its nutrients due to excessive heating, and some even produce some new substances harmful to health. Therefore, if the heating time exceeds 2 hours, it is recommended to throw away the food to avoid food poisoning.
Remember not to microwave for the second time after some meat or other food heated by microwave oven is frozen. Because bacteria will grow in half-cooked food, it is impossible to kill all bacteria if they are heated in the microwave for the second time because the time is too short.
Baidu encyclopedia-microwave oven