1-PET (Pot bottle)
The containers made of this material are the most common, such as mineral water bottles, carbonated beverage bottles, etc., commonly known as "professional bottles." The heat resistance of this material is only 70 °C, only suitable for warm or cold drinks.
2-HDPE (High Density Polyethylene)
Cleaning products Plastic containers and plastic bags for daily use are mostly made of this material, can withstand high temperatures of 110 °C, so it can be used to hold food, and can be reused after careful cleaning.
3-PVC (polyvinyl chloride)
Most of the plastic products made of such materials are mainly water pipes, raincoats, plastic films, plastic boxes, etc., and are easy to produce single-molecule vinyl chloride and plasticizers and other carcinogens. Therefore, if containers of this material are used to package food, they must not be heated and it is best to stop eating.
4-LDPE (low density ethylene)
The plastic bags that can be seen everywhere are made of LDPE. The heat resistance of the material is not strong, and hot melting occurs when the temperature exceeds 110°C.
Microwave lunch boxes made of this material, heat resistance up to 130 °C high temperature, is the only plastic box that can be put into the microwave oven, can be reused after cleaning. It should be noted that some microwave lunch boxes are made of No. 5 PP material.
The material used to make bowl-shaped instant noodle boxes and snack boxes is good in heat resistance, but it cannot be put into microwave ovens. High temperatures can release toxic chemicals.
7-PC (Polycarbonate) and Others
PC is a material that is used in large quantities and is used to make baby bottles, space cups, etc., because it contains bisphenol A and is controversial
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