Seven categories of plastic materials

On the bottom of plastic products, we usually see numbers printed: 01, 02, 03, 04, 05, 06, 07. Each number from 01 to 07 represents a plastic material.

01-PET (chemical name: polyethylene terephthalate)

It is usually used in packaging bottles of mineral water bottles, carbonated beverage bottles, and other bottled beverages. It is easy to deform when the temperature reaches 70°C, and the lowest temperature is -20°C. PET plastic products used for more than 10 months may release the carcinogen DEHP, so this bottle cannot be left in the sun for a long time and cannot be used for liquids such as wine, oil, etc.
PET plastic products are single-use packaging products. Please do not reuse them to avoid the release of DEHP substances after long-term use, which may endanger your health.

02-HDPE (chemical name: high-density polyethylene)

Commonly used in white medicine bottles, cleaning products, bath products, and storage containers, disposable plastic bags are made of this material.
Products made of HDPE are difficult to clean and breed many bacteria. Disposable products should not be recycled.

03-PVC (chemical name: polyvinyl chloride)

Usually used in raincoats, building materials, and plastic products. PVC products have the most problems. They are prone to producing toxic single molecules of vinyl chloride and harmful substances in plasticizers. These two substances are easy to cause cancer. In daily life, PVC products are almost never used in food packaging.

04-LDPE (chemical name: low-density polyethylene)

It is usually used as a raw material for cling film and plastic film, and its heat resistance is not strong.
When the temperature exceeds 110°C, hot melt will occur and substances that cannot be decomposed by the human body will precipitate. When wrapped food is heated in a microwave, the oily substances in the food will cause harmful substances in the plastic wrap to precipitate more easily.

05-PP (chemical name: polypropylene)

With a high-temperature resistance of 130°C, it can be used as a raw material for microwave lunch boxes and can be heated in a microwave oven. Although the PP label can be heated, no matter what kind of plastic container, food should not be put in and then heated to avoid the release of toxic substances.

06-PS (chemical name: polystyrene)

Usually used as raw materials for instant noodle boxes and fast food boxes. It is easily dissolved by corrosive substances and decomposes into polystyrene, a carcinogen.
PS material is resistant to high temperatures, but if the temperature is too high, it will decompose harmful substances. It can only be heated but not heated in a microwave oven, and it cannot be used to cook food.

07-PC and other PC

A material widely used in daily life, is the raw material of baby bottles and water cups. OTHER PC contains the toxic substance bisphenol A. During the production process, if bisphenol A is 100% converted into plastic structures, bisphenol A will not be released. However, in actual production, there is no data showing that bisphenol A can be 100% converted, so during daily use It should be noted that if you don’t want to use plastic products, you can use glass or ceramic products instead.

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