Why can't vacuum food bags be heated in a microwave oven.

微波炉是利用食物傍边含有的水分子作为介质，可以吸收微波中的能*，使分子发生剧烈震动，摩擦，然后产生热量，运用过微波炉的朋友们都知道，金属的容器是不可以直接放进微波炉加热的。

The microwave oven uses the water molecules near the food as the medium, which can absorb the energy in the microwave, make the molecules vibrate violently, rub, and then generate heat. Friends who have used the microwave oven know that metal containers can not be directly put into the microwave oven for heating.

而由非*性分子材质组成的容器，他们基本上不吸收或许很少吸收微波傍边的能*，比如塑料制品和玻璃等绝缘体，他们可以透过微波，而不吸收微波中的能量，可以作为微波加热用的容器或许支撑物。

For containers made of non * molecular materials, they basically do not absorb or rarely absorb the energy near the microwave *, such as insulators such as plastic products and glass. They can pass through the microwave without absorbing the energy in the microwave, and can be used as containers or supports for microwave heating.

虽然塑料不吸收微波中的能量，可是有的塑料在加热之后，他的稳定性可以变差并释放出有毒物质或许致癌物，只要运用蒸煮等级的塑料包装袋才能在微波炉中加热确保食物安*，一般来说温度加热不要超过120度，防止在加热的过程中部分温度过高，然后释放出对人体有害的物质。

Although plastics do not absorb the energy in the microwave, some plastics can deteriorate their stability and release toxic substances or carcinogens after heating. Only use cooking grade plastic packaging bags to heat in the microwave oven to ensure food safety. Generally speaking, the temperature should not exceed 120 degrees to prevent part of the temperature from being too high in the heating process, and then release substances harmful to human body.

所以，总的来说，塑料本身放进微波炉是没有什么问题的，可是加热会使塑料包装袋性质发生变化，释放出有毒物质，导致食物安*问题，所以，真空包装袋是不能用微波炉进行加热的。

Therefore, generally speaking, there is no problem with putting the plastic itself into the microwave oven, but heating will change the nature of the plastic packaging bag, release toxic substances, and lead to food safety problems. Therefore, vacuum packaging bags cannot be heated in the microwave oven.

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