1-PET polyethylene terephthalate: Using it for ten months can produce carcinogens. This type of plastic has a high probability of being discarded after use and is usually used as a mineral water bottle, milk bottle, etc. Not suitable for storing water that is too cold or too hot, as it can easily precipitate carcinogenic DEHP
2-HDPE (high-density polyethylene): not easy to clean, prone to bacterial growth, not recommended for reuse. Usually, cosmetic bottles and shower gel plastic wrap bottles belong to this type of material.
3-PVC (polyvinyl chloride): It is prone to the precipitation of harmful substances when exposed to high temperatures and oils, and is commonly used in raincoats, plastic toys, building materials, etc.
4-LDPE (Low Density Polyethylene): It is prone to producing harmful substances at high temperatures, and is commonly used in plastic bags, cling films, and other materials in daily life. Wrapping food with cling film and heating can easily dissolve harmful substances in the presence of oil.
5-PP (polypropylene): a very healthy material that can be used for microwave heating. After careful cleaning, it can be reused, but the lid of microwave plastic boxes is generally not made of PP material, so it is recommended to remove the lid when heating.
6-PS (Polystyrene): Heat resistant and cold resistant, it is a material used to make bowl filled instant noodle boxes and foam fast food boxes. Microwaves cannot be placed in, as they can produce chemicals due to high temperatures. Therefore, we need to reduce the use of fast food boxes to pack hot food.
7-AB (acrylonitrile butadiene): cannot be used for food packaging, but before 2008, code 7 mainly referred to all plastics except for 1-6. The plastic label on plastic bottles and water dispensers was usually "7".