What do the numbers on the bottom of the plastic bottle mean

PET (polyethylene acid B2 alcohol ester) on behalf of 1: Now, the general mineral water, carbonated drinks, functional beverage bottles are used in this material.

 Heat resistance is easy to deform at 70 ° C, and carcinogens will be released for 10 months. In hot weather, please do not put mineral water in the open air and on the car.

2 represents HARE (high-density polyethylene) : there are many bottles containing cleaning supplies and bath containers. Although the temperature is relatively high, it is difficult to clean, so bacteria are easy to multiply.

Three represent PVC (polysalt Chilon) : the toxic and harmful substances produced by plastic products of this material come from two aspects,

 1 is the single molecule vinyl chloride that is not completely polymerized in the production process, and 2 is the harmful substances in the additive. 

These two substances are easy to solve when high temperature and oil, and the poison is easy to become cancer after entering the body with food.

4 represents L quantum (low density polyethylene) : Now the market of fresh film, plastic film, etc., can use this material, heat resistance is not strong. 

Qualified PE plastic wrap occurs when the temperature exceeds 110 ° C thermal melting phenomenon, can be heated with fresh film food heating,

 food grease is easily dissolved in the fresh film of harmful substances. Food into the microwave oven before heating, should take the package of life preservation film.

5 on behalf of PP (polypropylene) : The microwave oven uses such a material, which can withstand the high temperature of 130 ° C and the difference in transparency. 

This is the only plastic box that can go into the microwave oven, pay attention to cleaning and reuse. Part of the box is made of No. 5 PP, but the lid is made of No. 6 PS (polyethylene),

 but the transparency of PS is very good, but because it can not tolerate high temperature, it can not be put in the microwave oven with the box.