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Do plastic bottles have a shelf life?

Update:10-12-2021
Summary:

Regarding whether plastic bottles and other plastic pro […]

Regarding whether plastic bottles and other plastic products are harmful to the human body, is there a shelf life?

According to interviews with relevant experts, there is no scientific basis for the claim that plastic bottles such as beverage bottles and mineral water bottles are carcinogenic by repeated use, but there may be hidden dangers if plastic bottles are reused for a long time. The same is true for mothers' milk bottles. Plastic milk bottles also have a shelf life, and many problems need to be paid attention to when using them.

It can be seen in some large supermarkets that in addition to more than 90% of baby bottles for infants and young children, the production date and expiry date are marked on plastic bottles, and only 40% of household plastic bottles have a production date.

Whether it is a plastic water cup or a Medical Grade Bottle, few have a production date and a shelf life. "Plastic products are made of different resin materials and will release toxic substances under different conditions such as temperature and humidity." The staff of the Quality Supervision Bureau of the Quality Supervision Bureau said that there are currently no unified standards in my country, only industry standards. . Some baby bottles produced abroad, although marked with a shelf life of 10 years, will release the toxic substance bisphenol A after repeated use, especially after high temperature heating, so try not to heat it when using it, and do not expose it to direct sunlight.

"At present, our country uses a triangle symbol as a plastic recycling symbol, which can remind consumers to use the material correctly. There is a triangle at the bottom of a plastic bottle with numbers from 1 to 7 inside. Each number represents a different material, indicating the product. What kind of resin is used. For example, plastic products containing PC components such as milk bottles and space cups are usually marked as "7", and mineral water bottles and carbonated beverage bottles are usually marked as "1".