What do the numbers inside the triangle under the plastic bottle (or cup) mean?

Polyester———— 01—PET (Pet bottles) such as: mineral water bottles, carbonated drink bottles

Do not recycle beverage bottles to hold hot water

Usage: Heat-resistant to 70°C. It is only suitable for holding warm or frozen drinks. It will be easily deformed when filled with high-temperature liquids or heated, and substances harmful to the human body may melt out. Moreover, scientists found that after 10 months of use, Plastic No. 1 may release the carcinogen DEHP, which is toxic to the testicles.

Therefore, throw away beverage bottles after use. Do not use them as water cups or storage containers to hold other items, so as not to cause health problems.

High-density polyethylene - 02-HDPE such as: cleaning products, bath products

It is recommended not to recycle if cleaning is not thorough

Usage: can be cleaned carefully They can be reused, but these containers are usually difficult to clean, leaving the original cleaning supplies behind and becoming a breeding ground for bacteria. You'd better not recycle them.

Polyvinyl chloride———— 03-PVC such as: some decorative materials

Usage: This material is prone to produce harmful substances at high temperatures, even during the manufacturing process. Released, toxic substances enter the human body with food and may cause breast cancer, birth defects in newborns and other diseases. At present, containers made of this material are rarely used for packaging food. If in use, never let it get heated.

Low density polyethylene - 04-LDPE such as: cling film, plastic film, etc.

Do not wrap the cling film on the surface of the food and put it in the microwave oven

Use: The heat resistance is not strong. Generally, qualified PE cling film will melt when the temperature exceeds 110°C, leaving some plastic preparations that cannot be decomposed by the human body. Moreover, when food is wrapped in plastic wrap and heated, the fat in the food can easily dissolve harmful substances in the plastic wrap. Therefore, before food is put into the microwave oven, the plastic wrap must be removed first.

Polypropylene———— 05-PP (can withstand temperatures above 100 degrees) such as: microwave lunch box

When placing it in the microwave, remove the lid

Usage: The only plastic box that can be placed in the microwave and can be reused after careful cleaning. Special attention should be paid to the fact that for some microwave lunch boxes, the box body is indeed made of No. 5 PP, but the lid 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. For safety reasons, remove the lid from the container before placing it in the microwave. < /p>

Don’t use a microwave oven to cook instant noodles

Usage: It is heat-resistant and cold-resistant, but it cannot be placed in a microwave oven to avoid the release of chemicals due to excessive temperature. And it cannot be used to pack strong acids (such as orange juice) and strong alkaline substances, because it will decompose polystyrene that is not good for the human body and can easily cause cancer. Therefore, you want to avoid packing hot food in snack boxes.

Other plastic codes——07—Others such as: kettles, cups, baby bottles