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What does the triangular number at the bottom of the beverage bottle mean

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1. Polyethylene terephthalate – 01 pet

such as mineral water bottles and carbonated beverage bottles

suggestion: don’t recycle hot water in beverage bottles

2. High density polyethylene – 02 HDPE & nbsp

such as cleaning products and bath products

suggestion: do not recycle if the cleaning is not complete

use: it can be reused after careful cleaning, but these containers are usually difficult to clean, leaving the original cleaning products and becoming a hotbed of bacteria. You’d better not recycle them

3. PVC – 03 PVC & nbsp

for example, some decorative materials

use: this material is easy to produce harmful substances at high temperature, and even it will be released during the manufacturing process. After the toxic substances enter the human body with food, they may cause breast cancer, neonatal congenital defects and other diseases. Containers of this material have been less used to package food. If in use, do not let it be heated

4. Low density polyethylene – 04 LDPE & nbsp

such as fresh-keeping film, plastic film, etc

suggestion: do not wrap the fresh-keeping film on the food surface and put it into the microwave oven

use: the heat resistance is not strong. Generally, the qualified PE fresh-keeping film will melt when the temperature exceeds 110 ℃, leaving some plastic preparations that cannot be decomposed by the human body. Moreover, wrap the food with plastic wrap and heat it. The oil in the food can easily dissolve the harmful substances in the plastic wrap. Therefore, when putting food into the microwave oven, first remove the wrapped preservative film

5. Polypropylene – 5 PP (capable of withstanding temperatures above 100 ℃)

such as microwave oven lunch box

suggestion: remove the cover when putting it into the microwave oven

use: the only plastic box that can be put into the microwave oven can be reused after careful cleaning. It should be noted that for some microwave oven lunch boxes, the box body is indeed made of No. 5 PP, but the box cover is made of No. 1 PE. Because PE cannot withstand high temperature, it cannot be put into the microwave oven together with the box body. To be on the safe side, remove the lid before putting the container into the microwave oven

6. Polystyrene – 06 PS (heat resistant 60-70 degrees, containing hot drinks will produce toxins, and styrene will be released when burning) & nbsp

for example: bowl instant noodle box and fast food box

suggestion: do not use microwave to cook bowls of instant noodles

use: it is heat-resistant and cold resistant, but it cannot be put into the microwave oven to avoid releasing chemicals due to excessive temperature. And can not be used to carry strong acids (such as orange juice) and strong alkaline substances, because it will decompose polystyrene which is bad for human body and is easy to cause cancer. Therefore, you should try to avoid packing hot food in fast food boxes

7. Other plastic codes – 07 others & nbsp

such as kettle, water cup and milk bottle

suggestion: PC glue meets pyrolytic bisphenol A

use: a material widely used, especially in milk bottles, which is controversial because it contains bisphenol A. Lin Hanhua, an associate professor of biology and chemistry at the City University of Hong Kong, said that in theory, as long as bisphenol A is 100% converted into plastic structure in the process of making PC, it means that the product has no bisphenol A at all, let alone release it

however, if a small amount of bisphenol A is not converted into the plastic structure of PC, it may be released into food or drinks. Therefore, be careful and pay special attention when using this plastic container

waste plastics

there are three kinds of plastic products used in food packaging: polyvinyl chloride, polyethylene and polystyrene. It is used to contain edible oil in a short time, which is not harmful to human health. However, using them to hold cooking oil for a long time will pollute food and cause harm to human body

this is because this kind of packaging bottle has the characteristics of high transparency and easy aging. It will be affected by oxygen, ozone and ultraviolet rays in the air to produce strong peculiar smell. In addition, the polymer itself is aging. If it is used for long-term storage of edible oil, it is easy to deteriorate these edible products

in addition, the element vinyl chloride in PVC is not only toxic, but also easy to decompose in acid and grease and precipitate highly toxic hydrogen chloride and chlorine. Plasticizers added to PVC, such as phthalates, are toxic. Lead, cadmium and organotin used as stabilizers are toxic chemicals, which are highly toxic and easy to dissolve in grease

although plastic polystyrene is a low toxic substance, its component styrene and volatile components ethylbenzene and cumene are toxic, and are very easy to dissolve in oil. Plastic polyethylene itself is not toxic. However, after contacting with oil, it can decompose and precipitate low molecular compounds. These low molecular elements will be toxic when dissolved in oil

reference to the above:

Baidu Encyclopedia – plastic bottle bottom label

Baidu Encyclopedia – plastic bottle

the triangle is a sign of plastic recycling. There are 1-7 numbers in the triangle. Each number represents different materials, indicating what kind of resin the product is made of and what taboos are in use

mineral water bottles, carbonated beverage bottles. Heat resistant to 70 ℃, it is only suitable for warm or frozen drinks. If it is filled with high-temperature liquid or heated, it is easy to deform, and substances harmful to human body melt out. No. 1 plastic may release carcinogen DEHP after 10 months of use, which is toxic to testis. Therefore, throw away the beverage bottles when they are used up. Don’t use them as water cups or storage containers to hold other items, so as not to cause health problems

when using plastic bottle products, attention should be paid to:

plastic bottles should not contact highly corrosive liquids

place the plastic bottle in a dry, ventilated and dark area

when purchasing plastic tableware or aviation Cup products, plastic products with PE (polyethylene) or PP (polypropylene) mark or polyester (PET) mark, few decorative patterns, colorless and tasteless and smooth surface should be selected

refer to & nbsp& nbsp; Baidu Encyclopedia – plastic bottle

the number 1 in the triangle at the bottom of the plastic bottle: pet polyethylene terephthalate
common mineral water bottles, carbonated beverage bottles, etc. Heat resistant to 70 ℃, easy to deform, and substances harmful to human body melt out. No. 1 plastic may release carcinogen DEHP after 10 months of use. Do not put it in the sun in the car; Do not contain alcohol, oil and other substances

the number 2 in the triangle at the bottom of the plastic bottle: HDPE high density polyethylene
common white medicine bottles, cleaning products and bath products. Don’t use it as a water cup or as a storage container for other items. Do not recycle if the cleaning is not complete

the number 3 in the triangle at the bottom of the plastic bottle: PVC PVC
common raincoats, building materials, plastic films, plastic boxes, etc. Excellent plasticity and low price, so it is widely used. It can only resist heat at 81 ℃ It is easy to produce bad substances at high temperature and is rarely used in food packaging. Difficult to clean, easy to residue, do not recycle. Don’t buy drinks

the number 4 in the triangle at the bottom of the plastic bottle: PE polyethylene
common fresh-k
eeping film, plastic film, etc. When high temperature has harmful substances, toxic substances enter the body with food, which may cause breast cancer, neonatal congenital defects and other diseases. Don’t put plastic wrap in the microwave

the number 5 in the triangle at the bottom of the plastic bottle: PP polypropylene
common soymilk bottles, yogurt bottles, fruit juice beverage bottles and microwave oven lunch boxes. Melting point up to 167 ℃, it is the only plastic box that can be put into the microwave oven and can be reused after careful cleaning. It should be noted that for some microwave oven lunch boxes, the box body is made of No. 5 PP, but the box cover is made of No. 1 PE. Because PE cannot withstand high temperature, it cannot be put into the microwave oven together with the box body

the number 6 in the triangle at the bottom of the plastic bottle: PS polystyrene
common bowl instant noodle boxes and fast food boxes. Do not put it in the microwave oven to avoid releasing chemicals due to excessive temperature. After containing acid (such as orange juice) and alkaline substances, carcinogens will be decomposed. Avoid packing hot food in fast food boxes. Don’t cook a bowl of instant noodles in the microwave

the number 7 in the triangle at the bottom of plastic bottle: other types of PC
common kettle, space cup and milk bottle. Department stores often use water cups made of this material as gifts. It is easy to release toxic substance bisphenol A, which is harmful to human body. Do not heat when using, do not directly sun in the sun.

in fact, the triangular number indicates the material of the beverage bottle
there is a triangle with an arrow at the bottom of the plastic bottle, and there is a number in the triangle. The following numbers in the triangle at the bottom of the plastic bottle refer to the ingredients contained in the bottle and their impact on human health –
1 – Pet polyethylene terephthalate is common in mineral water bottles, carbonated beverage bottles, etc. When the temperature reaches 70 ℃, it is easy to deform, and substances harmful to human body melt. No. 1 plastic may release carcinogen DEHP after 10 months of use. Such bottles cannot be put in the sun in the car, and cannot contain substances such as wine and oil.
2 – HDPE high density polyethylene is commonly used in white medicine bottles, cleaning products and bath products. Do not use it as a water cup or as a storage container for other items.
3 – PVC is commonly used in raincoats, building materials, plastic films, plastic boxes, etc. It has excellent plasticity and low price, so it is widely used. It reaches the peak when the heat resistance reaches 81 ℃, and it is easy to produce harmful substances at high temperature. It is rarely used in food packaging. It is difficult to clean and easy to remain. Do not recycle.
4 – PE polyethylene is commonly used in fresh-keeping film, plastic film, etc. When high temperature has harmful substances, toxic substances enter the body with food, which may cause breast cancer, neonatal congenital defects and other diseases.
5 – PP polypropylene is commonly used in soymilk bottles, yogurt bottles and microwave lunch boxes. Its melting point is as high as 167 ℃. It is the only plastic product that can be put into the microwave oven and can be reused after careful cleaning. It should be noted that for some microwave oven lunch boxes, the box body is made of No. 5 PP, but the box cover is made of No. 1 Pet. Because pet cannot withstand high temperature, it cannot be put into the microwave oven together with the box body. 6 – PS polystyrene is commonly used in bowl instant noodle boxes and fast food boxes. Do not put it into the microwave oven to avoid releasing harmful chemicals due to excessive temperature. Avoid packing hot food in a fast-food box and don’t use a microwave to cook a bowl of instant noodles.
7 – other types of PC are common in water bottles, space cups and milk bottles. Department stores often use these water cups as gifts. However, the cup made of this material can easily release the toxic substance bisphenol A, which is harmful to human body. In addition, do not heat the water cup when using it, and do not dry it in the sun.

recycling

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