"01" stands for PET (polyethylene terephthalate) and is most commonly used in making bottled beverages such as mineral water and carbonated beverages. It is well known that beverage bottles made of this material cannot be filled with hot water, but only suitable for warm drinks or frozen drinks. High-temperature liquids or heating are easy to deform and dissolve substances harmful to the human body. At the same time, this plastic product may release carcinogens after being used for more than 10 months. Therefore, Xiaoyu recommends throwing away the beverage bottle after drinking it, and do not use it as a cup or storage container. In order to avoid harm to health, it is not worth the loss.
"02" is not recommended as a water container
"02" stands for HDPE (High Density Polyethylene). Plastic containers containing cleaning products, bath products or plastic bags commonly used in shopping malls are mostly made of this material. It can withstand a high temperature of 110 ℃, if it is marked for food, it can be used to hold food. Plastic containers for cleaning products and bath products can be reused after careful cleaning, but often because they are not easy to clean and leave residues, which can become a hotbed of bacteria.
"03" Don't let it heat up
"03" stands for PVC (polyvinyl chloride), commonly seen in raincoats and plastic films. Plastic products made of this material are prone to produce two kinds of toxic and harmful substances: one is monomolecular vinyl chloride that has not been completely polymerized in the production process, and the other is harmful substances in plasticizers. These two substances are easily precipitated when they encounter high temperature and grease, and if they accidentally enter the human body, they are easy to cause cancer. Therefore, it is rarely used for food packaging, if it happens to happen, don't let it be heated.
"04" is not heat resistant
"04" is LDPE (low-density polyethylene), the raw material of plastic wrap and plastic film, and its heat resistance is not strong. Qualified PE cling film will appear hot-melt when the temperature exceeds 110 ℃, leaving some plastic preparations that the human body cannot decompose. If the food is wrapped outside and heated at the same time, the fat in the food is more likely to dissolve the harmful substances in the cling film. Therefore, it is recommended not to directly heat food covered with plastic wrap.
"05" Can be reused after careful cleaning
"05" stands for PP (polypropylene), which is the only material that can be placed in a microwave oven for heating, so it has become the raw material for making microwave oven lunch boxes. It can withstand high temperature of 130℃, melting point up to 167℃, poor transparency, and can be reused after careful cleaning. It should be noted that some microwave oven lunch boxes are made of PP (polypropylene) No. 05, but the lid is made of PS (polystyrene) No. 06. PS has good transparency, but it is not resistant to high temperatures, so it cannot be the same. Put the box into the microwave oven. Don't forget to remove the lid before heating the lunch box in the future.
"06" Never heat directly
"06" is PS (polystyrene), which is the material used to make bowl-shaped instant noodle boxes and foamed snack boxes. Can not be used to contain strong acids (such as orange juice), strong alkaline substances, because it will decompose polystyrene (carcinogenic substances) that are not good for the human body. Although it is heat-resistant and cold-resistant, it also releases chemicals due to the high temperature, so never heat the bowl of instant noodle box directly in the microwave!
"07" Use with care to avoid "bisphenol A"
"07" stands for PC and other PCs. It is a material that is widely used. It is mostly used in the production of baby bottles and space cups. It is controversial because it contains toxic bisphenol A. Theoretically, as long as bisphenol A is 100% converted into a plastic structure in the process of making a PC, it means that the product is completely free of bisphenol A, let alone released. But no manufacturer can guarantee that bisphenol A has been completely converted, so it needs to be paid attention to during the use.