Disposable lunch boxes made of plastic mainly include PP polypropylene and PS polystyrene, both of which are non-toxic, tasteless and odorless. PP is softer. The general use temperature of PP is: -6 degrees to +120 degrees, so it is particularly It is suitable for holding hot rice and hot dishes. It can be heated in a microwave oven or even steamed in a steam cabinet. The use temperature of modified PP can be controlled from -18 degrees to +110 degrees. In addition to being able to In addition to heating to 100 degrees for use, it can also be placed in the refrigerator for use. PS is hard and transparent, but easy to tear. When the service temperature reaches 75 degrees, PS begins to soften, so it is not suitable for holding hot meals and dishes. However, PS has good low-temperature performance and is a good packaging material for ice cream.

Cardboard snack boxes are made of 300-350 grams of bleached sulfate wood pulp cardboard as raw materials, and are made through die-cutting and bonding or die-cutting and shaping through a stamping and forming process similar to sheet metal processing. In order to prevent oil or water leakage, they must be Its surface is coated with film or chemical additives are applied, which is non-toxic and has no side effects on the human body during production and use. However, the quality requirements for cardboard are higher and the cost is also increased.

Edible fast food boxes made of starch as raw material. As the name suggests, it is made from starchy plants with dietary fiber and other edible additives added through stirring and kneading. It uses biological compound polysaccharides to cross-link calcium ions to chelate, etc. It is made of refined technology and consists of four parts: dense layer, inner waterproof layer, rubber mesh layer and outer waterproof layer.