Some people in the food production industry said that if it is to be used for microwave heating, then the tableware made of polypropylene (PP) is the most suitable, which is also recognized by the industry at present. Other kinds of tableware are not resistant to high temperature and are not suitable for microwave heating. Even if the tableware made of PP5 is heated, it is conditional and can only be used below 130℃.
In addition, the weak link of the plastic lunch box that can be heated by microwave is the box cover, and the box cover that can withstand high temperature usually has poor air permeability. Consumers should take off the box cover first and then put it into the microwave oven for heating. Wide-mouth containers should be used for microwave heating, because the heat generated by heating food in a closed container is not easy to dissipate, so that the pressure in the container is too high and it is easy to cause blasting accidents. Therefore, the covers of ordinary ceramic and glass lunch boxes should also be removed.
Extended data
Matters needing attention
1. The microwave oven should be placed in a place with balanced ventilation, with the back not less than 10 cm and the top not less than 5 cm, so as to facilitate exhaust and heat dissipation, and keep away from household appliances with magnetic fields, so as not to affect the cooking effect.
2. Don't put too much food in the microwave oven, and it is best not to exceed the volume of 1/3. Food should not be placed directly on the turntable, but in containers made of heat-resistant glass, ceramics or heat-resistant plastics. Never use metal or enamel containers or containers with metal patterns.
3. It is forbidden to heat sealed food in microwave oven, such as bagged, bottled and canned food, and food with belt shell, such as chestnuts and eggs, so as to avoid explosion pollution or damage to the microwave oven.
4. It is forbidden to use the microwave oven with no load. Usually, you can prepare a glass of water (glass) in the oven, take it out when you use it, heat the food and then put it in to avoid burning the microwave oven with no load.
People's Daily Online-Plastic lunch boxes are marked with PP5 before entering the microwave oven. Remove the cover first.
People's Daily Online-Taboo for microwave oven use: These foods can't enter the microwave oven.