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No. 1 PET polyethylene terephthalate
Common mineral water bottles, carbonated beverage bottles, etc. It is heat-resistant to 70°C and is easily deformed, and substances harmful to the human body will melt out. After 10 months of use, plastic No. 1 may release the carcinogen DEHP. Do not put it in the car to bask in the sun; do not put wine, oil, and other substances
No. 2 HDPE High-Density Polyethylene
Common white medicine bottles, cleaning supplies, and bath products. Do not use it as a drinking glass or as a storage container for other items. Incomplete cleaning, do not recycle.
No. 3 PVC polyvinyl chloride
Common raincoats, building materials, plastic films, plastic boxes, etc. It has excellent plasticity and a low price, so it is widely used, and it can only withstand heat up to 81°C. It is easy to produce bad substances at high temperatures and is rarely used in food packaging. Difficult to clean and easy to the residue, do not recycle. Do not buy if packed with drinks.
No. 4 PE Polyethylene
Common plastic wrap, plastic film, etc. Harmful substances are produced at high temperatures, and after poisonous substances enter the human body with food, they may cause diseases such as breast cancer and birth defects in newborns. Keep plastic wrap out of the microwave.
No. 5 PP polypropylene
Common soy milk bottles, yogurt bottles, juice drink bottles, and microwave lunch boxes. With a melting point of 167°C, it is the only plastic box that can be placed in a microwave oven and can be reused after careful cleaning. It should be noted that for some microwave lunch boxes, the box body is made of No. 5 PP, but the box cover is made of No. 1 PE. Since PE cannot withstand high temperatures, it cannot be put into the microwave oven together with the box body.
No. 6 PS polystyrene
Common bowls of instant noodle boxes and fast food boxes. Can not be put into the microwave oven, so as not to release chemicals due to high temperature. After loading acid (such as orange juice) and alkaline substances, carcinogens will be decomposed. Avoid packing hot food in snack boxes. Do not cook bowls of instant noodles in the microwave.
No. 7 PC Other Classes
Common water bottles, space cups, and feeding bottles. Department stores often use water glasses made of this material as gifts. It is easy to release the toxic substance bisphenol A, which is harmful to the human body. Do not heat when using, and do not expose to direct sunlight.
