The mark 1, 2, 4, 5 is the safest. The plastic material marked 1 is generally used to make mineral water bottles, beverage bottles, etc. The maximum thermal resistance is 70 degrees Celsius, most of which is disposable goods; Materials marked with 2 are often used to produce medicine bottles, food plastic bags and so on. , and can withstand the high temperature of 1 10 degrees Celsius; 4 used to make plastic wrap, etc. ; 5. Used for making microwave oven lunch boxes and other products, which can withstand the high temperature of 130 degrees Celsius.
Extended data:
A cup suitable for drinking hot water:
1 glass:
Among all the cups made of materials, the glass is the healthiest. Glass contains no organic chemicals. When people drink water or other drinks from a glass, they don't have to worry about chemicals being drunk into their stomachs, and the glass surface is smooth and easy to clean, so it is the healthiest and safest for people to drink water from a glass.
② Enamel cup:
Because the enamel cup is glazed at a high temperature of thousands of degrees Celsius, it does not contain harmful substances such as lead, so it can be used with confidence.
Baidu encyclopedia-? Plastic bottle bottom label
People's Network-The Health Secret of Plastic Water Cup? Glass is the first choice for drinking cups.