The triangle at the bottom of the plastic container is also a small health certificate, which contains the numbers 01-07. Each number represents a plastic container. Their materials are different, so the contraindications are also different.
No. 1: PET (polyethylene terephthalate)
Common mineral water bottles, carbonated beverage bottles, etc. Heat-resistant to 70 ℃, easy to deform, only suitable for warm drinks or frozen drinks, high-temperature liquid or heating, it is easy to deform, and has harmful substances to the human body. After the No. 1 plastic product is used for 10 months, it may release the carcinogen DEHP. Do not put it in the car to expose to the sun; do not hold wine, oil and other substances.
No. 2: HDPE (High Density Polyethylene)
Common white medicine bottles, cleaning supplies, bath products. Plastic containers of this type can be reused after careful cleaning. But don’t use it as a water glass or as a storage container for other items. Do not recycle without thorough cleaning.
No. 3: PVC (polyvinyl chloride)
Common raincoats, building materials, plastic films, plastic boxes, etc. Excellent plasticity and cheap price, so it is widely used, only heat-resistant 81 ℃. It is easy to produce bad substances at high temperature, and it is rarely used in food packaging. In general, it is best not to buy plastic containers of this material. Hazardous substances are easily produced at high temperatures, and they are even released during the manufacturing process. Toxic substances entering the body with food may cause diseases such as breast cancer and birth defects. . Not only that, this material is also difficult to clean the residual material, it is best not to recycle. Remember not to use drinks made of cups of this material.
No. 4: LDPE (low density polyethylene)
Common plastic wrap, plastic film, etc. This kind of material is generally used for cling film, plastic film, etc. It is not heat resistant. Qualified PE cling film will be hot melted when the temperature.
No. 5: PP (polypropylene)
Common soy milk bottles, yogurt bottles, fruit drink bottles, 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 lid is made of No. 1 PE. Since PE cannot withstand high temperatures, it cannot be put into the microwave oven with the box body. Special attention is paid to transparent PP, not microwave oven PP, so products made by it cannot be placed directly into the microwave oven.
No. 6: PS (polystyrene)
Common bowls of instant noodle boxes and fast food boxes. It is heat and cold resistant, but should not be placed in a microwave oven to avoid the release of chemicals due to high temperatures. After loading with acid (such as orange juice) and alkaline substances, carcinogens will be broken down. Avoid packing hot food in fast food boxes. Do not cook instant noodles in a microwave oven.
No. 7: PC (other types)
Common kettles, space cups, feeding bottles. Department stores often use drinking glasses 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 during use and do not expose to direct sunlight.