Polyester -0 1-PET bottles, such as mineral water bottles and carbonated beverage bottles.
Don't recycle the hot water in the beverage bottle.
Usage: High temperature resistance of 70℃, only suitable for filling warm drinks or frozen drinks. It is easy to deform when it is filled with high-temperature liquid or heated, and harmful substances will be dissolved out. Moreover, scientists have found that after 1 plastic products are used 10 months, DEHP, a carcinogen, may be released, which is toxic to testicles.
Therefore, drink bottles should be thrown away when they are used up. They should not be used as drinking cups or as storage containers for other items, so as not to cause health problems.
High density polyethylene -02-HDPE, such as cleaning products and bath products.
If the cleaning is not thorough, it is recommended not to recycle.
Usage: It can be reused after careful cleaning, but these containers are usually not easy to clean, leaving the original cleaning supplies and becoming a hotbed of bacteria. You'd better not recycle them
Pvc-03-PVC such as: some decorative materials.
Usage: this material is easy to produce harmful substances at high temperature, and even it will be released during manufacturing. Toxic substances enter the human body with food, which may cause diseases such as breast cancer and birth defects of newborns. At present, containers made of this material are rarely used for packaging food. If it is in use, don't let it get hot.
Low density polyethylene -04-LDPE, such as plastic film, plastic film, etc.
Don't put plastic wrap on the surface of food and put it in the microwave oven.
Uses: heat resistance is not strong. Generally qualified PE plastic wrap will melt when the temperature exceeds 1 10℃, leaving some plastic preparations that cannot be decomposed by human body. Moreover, food is wrapped and heated with plastic wrap, and the oil in food can easily dissolve the harmful substances in plastic wrap. Therefore, before putting food into the microwave oven, you must first remove the wrapped plastic wrap.
Polypropylene-05-PP (can withstand the temperature above 100 degrees) such as microwave lunch boxes.
When you put it in the microwave oven, take off the cover.
Usage: The only plastic box that can be put into the microwave oven can be reused after careful cleaning. It should be noted that some microwave lunch boxes are indeed made of No.5 PP, but the lid is made of No.0 PE/kloc-0. Because PE is not resistant to high temperature, it can't be put in the microwave oven with the box. To be on the safe side, open the lid before putting the container in the microwave oven.
Polystyrene -06-PS (heat resistance 60-70 degrees, hot drinks will produce toxins, and styrene will be released when burning), such as instant noodle boxes in bowls and fast food boxes.
Don't cook a bowl of instant noodles in the microwave oven.
Usage: Heat-resistant and cold-resistant, but it can't be put into the microwave oven to avoid releasing chemicals when the temperature is too high. And it cannot be used to load strong acids (such as orange juice) and strong alkaline substances, because it will decompose polystyrene which is unfavorable to human body and easy to cause cancer. Therefore, you should try to avoid packing hot food in fast food boxes.
Other plastic code -07- other, such as: kettle, water cup, milk bottle.
PC glue releases bisphenol A when heated.
Uses: A widely used material, especially in milk bottles, is controversial because it contains bisphenol A. Lin Hanhua, an associate professor in the Department of Biochemistry of City University of Hong Kong, said that in theory, as long as bisphenol a 100% is converted into plastic structure in the process of manufacturing PC, it means that the product contains no bisphenol A at all, let alone released. However, if a small amount of bisphenol A is not converted into the plastic structure of PC, it may be released into food or drink. Therefore, when using this kind of plastic container, we should be especially careful.