At present, the general materials on the market can be divided into several categories: 1. Foamed plastic 2.PP plastic 3. Paper material 4. Degradable material 5. And the recently popular aluminum foil material (I only know these, you can comment and add if you have any supplements. )

Among these materials, foamed plastic should be regarded as an unsanitary one. Otherwise, if it is well preserved and used properly, you don't have to worry too much. You can use it with confidence, especially aluminum foil, because the surface is not easy to breed and encourage bacteria because of its special material.

Let's talk about how to use it healthily. Considering the temperature resistance and corrosion resistance of materials, the uses of different materials are also different. If you use it correctly, you should be hygienic. This requires you to consider clearly when choosing and using takeaway boxes.

There is also the problem of microwave oven. Paper is rarely heated by microwave oven. As for plastic, you can look at the bottom of plastic lunch boxes. Generally, lunch boxes have a small triangle with a number in it. Take-away lunch boxes are usually 5 or 6. If it is 5, it can be heated by microwave oven. If it is 6, it can't be heated. Heating will produce harmful substances. Aluminum foil can be heated in microwave oven.