There are numbers at the bottom of plastic bottles, and different numbers have different meanings. The following plastic bottle manufacturers share with you what the numbers at the bottom of plastic bottles mean.

1. Represents PET (polyethylene terephthalate): At present, this material is used for general mineral water, carbonated drinks and functional drink bottles. Heat-resistant to 70 ℃ easy to deform , Use for 10 months may release carcinogens. Don’t put mineral water in the open air or in the car in hot weather , don’t flush the boiling water directly into the mineral water bottle. 2. Represents HDPE (High Density Polyethylene): mostly used in the manufacture of containers and bottles for cleaning supplies and  cosmetic packaging suppliers  bath products. It is more resistant to high temperature , but not easy to clean , easy to breed bacteria, It is recommended not to recycle.

3. Represents PVC (polyvinyl chloride): the toxic and harmful substances that plastic products of this material are prone to produce come from two aspects: one is the monomolecular vinyl chloride that has not been fully polymerized in the production process. Is a harmful substance in plasticizers. When these two substances are exposed to high temperature and oil, they are easy to release ,toxins enter the human body with food, and are prone to cause cancer. 4. Represents LDPE (low density polyethylene):

At present, the plastic wrap, plastic film, etc. on the market mostly use this material , heat resistance is not strong, When there is a hot melt phenomenon , wrap the food with plastic wrap and heat, the grease in the food can easily dissolve the harmful substances in the plastic wrap. The wrapping plastic wrap should be removed before the food is heated in the microwave. 5. Represents PP (polypropylene): the microwave lunch box is made of this material , resistant to high temperature of 130 ℃ , poor transparency. This is a microwave-safe plastic box , reusable after careful cleaning. Some lunch boxes are made of No. 5 PP, but the lid is made of No. 6 PS (polystyrene), PS has good transparency, but is not resistant to high temperature, The box is placed in the microwave oven together.