Vacuum food packaging bags cannot be heated in a microwave oven

　　Vacuum food packaging products are becoming more and more popular, but this kind of food also has a common problem, that is, the short storage time is a headache for many food factories. The application of vacuum food packaging bag solves this problem. He uses the principle of vacuum deoxidization, which can store food in a vacuum environment, prevent food from microbial infection, effectively extend the shelf life of food, and adhere to the original color, aroma, taste, shape and nutritional value.

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

　　Containers made of non-polar molecular materials 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.

　　Although plastics do not absorb the energy in the microwave, some plastics can deteriorate in stability and release toxic substances or carcinogens after heating. Only using cooking grade plastic packaging bags can they be heated 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 during the heating process, and then release substances harmful to human body.

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