Disposable lunch box type

Plastic type: Disposable lunch boxes made of plastic mainly include polypropylene and polystyrene, both of which are non-toxic, tasteless, odorless, soft, and generally have a wide temperature range, so they are especially suitable for holding hot meals and hot dishes. It can be heated in a microwave oven, or even steamed in a steam cabinet. The modified polyethylene has a wide temperature range. The lunch box made of this polypropylene can not only be heated to 100 degrees, but also can be stored in a refrigerator. In order to reduce costs, some lunch box factories use them as boxes and lids. The advantage is that the lids are transparent, and polystyrene is relatively hard, so they can be made of thinner sheets to reduce costs. However, consumers of this design must understand the two materials. Remember not to put the whole box of rice with the lid in the microwave for heating.
Cardboard type: The cardboard fast food box is made of 300-350 grams of bleached salt wood pulp cardboard, which is made by die-cutting bonding or die-cutting pressing, shaping and other processes through a stamping process similar to sheet metal processing. In order to prevent its oil seepage or water seepage, it is necessary to coat its surface or apply chemical additives. It is non-toxic to the human body during production and use. However, the quality requirements for cardboard are higher, and the cost is also increased.
Pulp molding type: wood pulp or reed, bagasse, wheat straw, straw and other annual herbaceous plant fiber pulp is pulped and purified.