Food-grade PET plastic bottles cannot withstand high temperature and need to be used at low temperature

Mr. Yan, who has been engaged in chemical experiments for many years, informed reporters that qualified beverage bottles and mineral water bottles should be made of food-grade plastic bottles, and the primary ingredient is PET. These food-grade PET plastic bottles cannot withstand high temperature and need to be used at low temperatures, usually below 70 degrees Celsius. These plastic bottles are all used at one time, and the state stipulates that companies cannot take them back and refill them. Regarding the use of some people as kettles, he does not recommend them. Because harmful substances in plastics will dissolve and enter the water when exposed to high temperature water. And repeated use of mineral water bottles or beverage bottles, the cleaning index cannot be reached. When the company filled the bottle for the first time, it carried out strict disinfection, removal, sterilization and other procedures on the bottle, and when consumers reused the bottle, they did not pass these cleaning procedures, and it was not safe to clean it.

It is also known that at present, my country uses the triangle symbol as the plastic bottle recovery mark. There are numbers from 1 to 7 in the triangle, and each number represents a different material. Therefore, the different numbers in the recovery mark indicate what kind of resin the product is made of. If the product is made of several different materials, it is marked with the primary and basic information of the product. However, in my country, because the recovery mark of plastic products is mandatory, not all manufacturers have marked it at present.