The paper tray is made of environmentally friendly materials. Compared with the same type of foam and plastic paper tray, it is more environmentally friendly and biodegradable. You can use it as a fresh tray and put it into the refrigerator for fresh-keeping. It will not deteriorate the material structure because of the temperature drop. It can also be put into the oven for heating without releasing harmful substances. Of course, you can also use it as a packaging tool for street snacks to provide you with a convenient life.