The numbers inside the triangular recycling symbol at the bottom of plastic products represent the material type, which is the key to identifying the type of plastic.

♻️1 PET (Polyethylene Terephthalate) PET -20℃~65℃ Do not store hot water. Exceeding 70℃ releases harmful substances. Do not recommend repeated use.
♻️2 HDPE (High-Density Polyethylene) HDPE Approximately 110℃ Cleaning product bottles can be disinfected at high temperatures, but repeated use is prone to bacterial growth.
♻️3 PVC (Polyvinyl Chloride) PVC Approximately 60℃ Not for storing food and medicine. Contains plasticizers, releases hydrogen chloride at high temperatures.
♻️4 LDPE (Low-Density Polyethylene) LDPE Approximately 110℃ Common cling film, not to be in contact with oily foods. Easily dissolves harmful substances at high temperatures.
♻️5 PP (Polypropylene) PP Approximately 130℃ The only plastic that can be microwaved. Commonly used for takeout boxes and baby bottles.
♻️6 PS (Polystyrene) PS Approximately 80℃ Cleaned noodle boxes and foam takeout boxes. Do not put in the microwave. Releases chemical substances at high temperatures.
♻️7 Other types (such as PC/PLA) Depending on the specific material PC contains bisphenol A and has been gradually phased out; PLA is a degradable material