It is understood that regular plastic products basically have a triangular logo, which is generally printed on the bottom of the bottle, representing different meanings.
Polyethylene terephthalate. Common mineral water bottles, carbonated beverage bottles, etc., heat resistant to 70 ° C, easy to deform, substances that are harmful to the human body will melt out. After 10 months of use, the carcinogen DEHP may be released. Can not be placed in the car to sun, can not be loaded with alcohol, oil and other substances.
High-density polyethylene. Common white medicine bottles, cleaning products, plastic bottles for bath products, can withstand high temperatures of 110 °C. Do not use it as a water cup or as a storage container for other items. Not easy to clean, easy to become a hotbed of bacteria, do not recycle.
Polyvinyl chloride. Common raincoats, building materials, plastic film, plastic boxes, etc. It has excellent plasticity and low price, so it is widely used. It can only be heat-resistant at 81 ° C. It is easy to release toxic substances at high temperatures and is rarely used in food packaging. Do not recycle.
Low-density polyethylene. Common plastic wrap, plastic film, etc. are all such materials. The heat resistance is not strong. Generally, the qualified PE cling film will have a hot melt phenomenon when the temperature exceeds 110 °C, which will leave some harmful substances. If it enters the human body, it may cause diseases such as breast cancer and neonatal congenital defects. Therefore, before the food is placed in the microwave oven, remove the plastic wrap.
Polypropylene. Common soy milk bottles, juice drink bottles, microwave lunch boxes. With a melting point of up to 167 ° C, this is the only plastic box that can be placed in a microwave oven and can be reused after careful cleaning. However, some lids may be made of PE plastic, and the lid must be removed before entering the microwave oven.
Polystyrene. Common bowls of instant noodles boxes, foamed snack boxes. Heat and cold, but not into the microwave, to avoid the release of chemicals due to excessive temperature. After being packed with acidic or alkaline substances, it will decompose into carcinogens.
Other types (including aBS resin, polymethyl methacrylate, polycarbonate, polylactic acid, nylon and fiberglass reinforced plastic). Common kettles, bottles, space cups, CDs, bottled water bottles, etc. It is easy to release bisphenol a. Regarding the impact of bisphenol a on the human body, the Canadian government and the European Union prohibit the addition of bisphenol a during the manufacture of baby bottles. Do not heat when using, do not expose to direct sunlight.
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