It is very good for our present catering conditions. In the past, we used to pack things with leaves, but now we can pack them in paper boxes, plastic boxes and foam boxes. Compared with our previous packaging environment, it is really good. So, do you know that many people put plastic boxes in the microwave oven to heat them? Although many lunch boxes say that they can be heated by microwave, does putting plastic boxes in the microwave oven really have no chemical reaction? ?

first of all, let's find out what kinds of materials are used to make lunch boxes. PET, also known as polyethylene terephthalate, is a disposable plastic product. When you see this logo written on the plastic box body, you can't put it in the microwave oven. HDPE, this kind of material is also called high density polyethylene. Of course, although this kind of plastic is resistant to high temperature, it can't be put into the microwave oven. PVC, also known as polyvinyl chloride, is a common plastic in our market. This material is not resistant to high temperature, so it is not suitable for heating in microwave oven. PS, also known as polystyrene, is not suitable for heating in microwave oven, and it is usually used in instant noodle barrels. PP, which is also called polypropylene, is used in most take-away lunch boxes. This material can be used repeatedly and can also be put into the microwave oven.

let's learn about the working principle of the microwave oven. The working principle of the microwave oven mainly releases microwaves in the microwave oven, which can make polar molecules in food vibrate, so that molecules can interact and collide with each other to achieve the effect of friction and heat generation. So if you put the material that can't be heated at high temperature into the microwave oven, it will easily make the plastic melt in the microwave oven and penetrate the organic solvent into the food. Although many materials are marked to be put into the microwave oven, Xiao Bian suggests that you still use non-plastic food boxes and put them into the microwave oven. Because we can't tell whether this lunch box meets the requirements of the standard, we should not put this plastic box into the microwave oven for safety reasons.