"Growing knowledge" are you still using plastic bottles and plastic boxes like this?Be careful to give yourself chronic "poisoning"!

Mention plastic products

Many people are no stranger to

For the convenience of time map

Many people like to pack plastic boxes directly

Put in a microwave oven to heat

Some people don't want to throw away the plastic bottle in vain

So use it to install edible oil ...

These situations

Are you "recruiting"

If plastic products are not used properly

Maybe you are giving yourself chronic "poisoning"

What are the common plastic products?

Take you to find out

01

The use of these 3 plastics

It may be chronic "poisoning" for yourself

1. Plastic bottle Edible oil

Plastic bottles containing mineral water, fruit juice, and carbonated beverages usually say "1" at the bottom.

Plastics No. 1, which is polyphylebenonate glycol (PET). This material has poor heat resistance, and the maximum use temperature does not exceed 70 ° C. As soon as heated or boils, it is easy to deform, and it will dissolve harmful substances.

There are clear studies that at the same temperature, PET plastic bottled oil, the migration amount of phthalate (a plasticizer) is nearly 20 times more than water. Therefore, it is recommended to throw it away after drinking the drink bottle!

2. Plastic lunch box for packaged in a microwave oven for heating

The standards of plastic lunch boxes are 1 (PET), 5 (PP), and 6 (PS). PET heat -resistant degree is only 70 ° C, PS heat resistance is only 90 ° C, while the heat resistance of PP material reaches 130 ℃, the melting point is as high as 200 ° C. Therefore, only plastic with No. 5 PP material can be placed in a microwave oven to heat.

For cost control and other reasons, usually no one -time lunch box does not have very high safety standards. The purpose of its production is to make a high -temperature and oil -oil food. Under this condition, it is safe.

However, if the number of times is used, it will destroy its stability, and the harmful substances in it may affect health in the long run. Therefore, although some disposable lunch boxes can be heated with a microwave oven, it is not recommended

3. Use steel ball -to -plastic lunch box/fresh -keeping box

Steel ball brush plastic will destroy the integrity of the plastic (such as scratching, etc.), thereby increasing the possibility of migration of low molecular compounds. Therefore, it is recommended to use a softer cloth to clean it so that the plastic lunch box may not be damaged too much.

02

Will plasticizers causing cancer?

The Cancer Research Center under the World Health Organization listed "DEHP" as 2B carcinogens. "Class 2B carcinogen" mainly refers to "might be carcinogenic, but limited or insufficient evidence".

Although the plasticizer represented by DEHP may indeed migrate from some plastic products to food under certain conditions and finally enter the human body, but the use of DEHP in food packaging is strictly limited, and its migration is migrated. The amount does not achieve the dose of harm to the human body.

Therefore, "plasticizer carcinogenic" needs to be treated scientifically.

03

How to use plastic products safely?

Generally plastic products indicate "identity" with a number of 1-7. These numbers contain some security prompts:

Plastic No. 1:

Commonly used to make mineral water bottles and carbonated beverage bottles.

Note: Do not load hot water, do not repeat it.

Plastic No. 2:

It is mostly used to make containers with cleaning products and bath products.

Note: The density is very high, very strong, and can be reused.

No. 3 plastic:

Commonly used for making raincoats, garbage bags in life, plastic greenhouses, and rubber tube for agricultural.

Note: good performance, abrasion resistance, acid resistance, but not heat -resistant and toxicity.

Plastic No. 4:

Commonly used for production of plastic wrap, plastic film and other materials.

Note: The breathability is not permeable, and the heat resistance is not strong.

Plastic No. 5:

Commonly used for making plastic cups and plastic lunch boxes.

Note: It can be used to store food and microwave oven.

Plastic No. 6:

Commonly used in the production of bowl instant noodles and fast -food boxes.

Note: heat -resistant (heat -resistant 60 ° C ~ 70 ° C), cold resistance, but not being put in a microwave oven, and cannot be used for strong acid and alkaline substances.

No. 7 Plastic:

Mostly used to make bottle, space cups, etc.

Note: It is not suitable to install boiling water.

When using plastic products, you should carefully read the labeling or use instructions of the product packaging, such as the applicable temperature of the plastic product, and whether it can be put in a microwave oven or refrigerator.

It is recommended to reduce the use of plastic products, and it is recommended to use cloth bags, paper bags, porcelain or glass products, which can protect the environment and health!

Author ｜ Professor Department of Nutrition and Food Health at the School of Public Health, Yu Huanling of the Capital Medical University

Health guide

1. It is best not to use plastic bottles to eat oil

2. Generally, only plastic with No. 5 PP material can be placed in a microwave oven to heat

3. Do not use the steel wire washing plastic lunch box/fresh -keeping box

4. "Plasticizer carcinogenic" needs to be treated scientifically

Source: CCTV Life Circle, Popular Science China

Co -organizer: Huairou Association

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