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The bottom of the cup indicates the meaning

No. 1 PET polyethylene terephthalate grease

Common mineral water bottles, carbonated beverage bottles, etc. Heat-resistant to 70°C is easily deformed, and substances harmful to the human body melt out. After 10 months of use, plastic No. 1 may release the carcinogen DEHP. Can not be put in the sun in the car; do not install wine, oil and other substances

No. 2 HDPE high density polyethylene

Common white medicine bottles, cleaning products, bath products. Do not use it as a cup or as a storage container for other items. The cleaning is not complete, do not recycle.

No. 3 PVC PVC

Common raincoats, building materials, plastic films, plastic boxes, etc. Excellent plasticity, cheap, it is very common, only heat 81 °C. At high temperatures, it is easy to have a bad material, rarely used in food packaging. Difficult to clean and easy to leave, do not recycle. Do not buy if you have drinks.

No. 4 PE Polyethylene

Common cling film, plastic film and so on. At high temperatures, harmful substances are produced. After the poison enters the body with food, it may cause breast cancer, newborn birth defects and other diseases. Do not put plastic wrap in the microwave oven.

No. 5 PP Polypropylene

Common soy milk bottles, yogurt bottles, juice bottles, microwave meal boxes. With a melting point of up to 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 some microwave lunch boxes are manufactured with No. 5 PP, but the lid is made of No. 1 PE. Because PE cannot withstand high temperatures, it cannot be put into the microwave oven together with the box.

No. 6 PS Polystyrene

Common bowls of instant noodle boxes, fast food boxes. Do not put in microwave ovens to avoid releasing chemicals due to high temperatures. After loading acid (such as orange juice) and alkaline substances, it will decompose carcinogens. Avoid packing hot food with snack boxes. Do not cook instant noodles in a microwave oven.

PC No.7 Others

Common kettle, space cup, bottle. Department stores use such materials as cups as gifts. It is easy to release the toxic substance BPA, which is harmful to the human body. Do not use heat while using, and do not expose it to direct sunlight.