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If you look carefully at some plastic products, you will find a triangle logo on it.
The numbers in the triangle range from 1 to 7
.
This logo is like a person's ID card, representing different specifications of plastic products
.
The numbers 1~7 in the logo represent the main resin raw materials used to make plastics
.
(It doesn’t matter if you don’t understand, remember 1~7 and then go down)
The numbers in the triangle range from 1 to 7
.
This logo is like a person's ID card, representing different specifications of plastic products
.
The numbers 1~7 in the logo represent the main resin raw materials used to make plastics
.
(It doesn’t matter if you don’t understand, remember 1~7 and then go down)
It depends on the material of the plastic, which is 1~7 mentioned above
.
No.
1 PET typically represents beverage bottles and mineral water bottles, which are deformed at a temperature higher than 70°C, and cannot be filled with hot water and cannot be recycled; No.
2 HDPE represents plastic bags, plastic barrels, etc.
, although they can withstand high temperatures of 110°C, long-term Hazardous substances may be precipitated in use, so it is not recommended to be used as a water container
.
.
No.
1 PET typically represents beverage bottles and mineral water bottles, which are deformed at a temperature higher than 70°C, and cannot be filled with hot water and cannot be recycled; No.
2 HDPE represents plastic bags, plastic barrels, etc.
, although they can withstand high temperatures of 110°C, long-term Hazardous substances may be precipitated in use, so it is not recommended to be used as a water container
.
No.
4 LDPE stands for plastic wrap, airtight bags, etc.
, which can withstand temperatures around 90 ℃, but harmful substances can be precipitated when the temperature exceeds 110 ℃.
It is not recommended to contain food with too high temperature; No.
5 PP stands for microwave lunch boxes , Milk bottles, etc.
, relatively heat-resistant, with a melting point as high as 167°C, which can be used to hold hot water and hot food
.
4 LDPE stands for plastic wrap, airtight bags, etc.
, which can withstand temperatures around 90 ℃, but harmful substances can be precipitated when the temperature exceeds 110 ℃.
It is not recommended to contain food with too high temperature; No.
5 PP stands for microwave lunch boxes , Milk bottles, etc.
, relatively heat-resistant, with a melting point as high as 167°C, which can be used to hold hot water and hot food
.
However, No.
3 PVC (typical representative: disposable gloves, low-quality plastic wrap), No.
6 PS (typical representative: disposable tableware, biscuit box) and other plastic products have poor heat resistance and cannot be loaded with too hot Food is not recommended for repeated use
.
3 PVC (typical representative: disposable gloves, low-quality plastic wrap), No.
6 PS (typical representative: disposable tableware, biscuit box) and other plastic products have poor heat resistance and cannot be loaded with too hot Food is not recommended for repeated use
.
No.
5 PP is the only material that can be heated in a microwave oven among all plastics
.
It should be noted that for some microwave lunch boxes, the box body is made of No.
5 PP, but the lid is made of No.
6, which is not resistant to high temperatures.
Therefore, it cannot be put into the microwave together with the box body.
Remember before heating the lunch box.
Take off the lid first
.
5 PP is the only material that can be heated in a microwave oven among all plastics
.
It should be noted that for some microwave lunch boxes, the box body is made of No.
5 PP, but the lid is made of No.
6, which is not resistant to high temperatures.
Therefore, it cannot be put into the microwave together with the box body.
Remember before heating the lunch box.
Take off the lid first
.
Mineral water bottles are generally made of No.
1 plastic, which will only be deformed at a temperature above 70°C, and exposure to the sun generally cannot reach this temperature
.
Simply put, as long as it is purchased through formal channels, the water after exposure can also be drunk
.
Of course, if you find that the bottle has not been opened, or the water has a noticeable peculiar smell when you open it, don't drink it
.
1 plastic, which will only be deformed at a temperature above 70°C, and exposure to the sun generally cannot reach this temperature
.
Simply put, as long as it is purchased through formal channels, the water after exposure can also be drunk
.
Of course, if you find that the bottle has not been opened, or the water has a noticeable peculiar smell when you open it, don't drink it
.
Beverage bottles on the market are generally No.
1 PET plastic, and occasionally No.
5 PP can be seen
.
Regardless of whether it is a plastic bottle made of No.
1 or No.
5, it contains some fat-soluble substances.
If it is used for daily filling of edible oil, some substances will penetrate into the oil, and the No.
1 PET plastic will release toxic substances after 10 months.
It may cause cancer, so it is not recommended to use plastic products as a container for oil for a long time
.
1 PET plastic, and occasionally No.
5 PP can be seen
.
Regardless of whether it is a plastic bottle made of No.
1 or No.
5, it contains some fat-soluble substances.
If it is used for daily filling of edible oil, some substances will penetrate into the oil, and the No.
1 PET plastic will release toxic substances after 10 months.
It may cause cancer, so it is not recommended to use plastic products as a container for oil for a long time
.
In fact, as long as the food packaging meets the national quality requirements and meets the food hygiene standards, there will be no safety issues
.
It is recommended that you choose plastic bags with the words "food grade" to store food when you buy
.
.
It is recommended that you choose plastic bags with the words "food grade" to store food when you buy
.
summary
Summary summary 1.
The number marked on plastic products is not the bigger the safer, and the degree of safety has nothing to do with the number
.
The number marked on plastic products is not the bigger the safer, and the degree of safety has nothing to do with the number
.
2.
Only No.
5 PP can be heated in a microwave oven
.
Other plastic products cannot be heated in a microwave oven, and it is not recommended to come into contact with overheated water or food
.
Only No.
5 PP can be heated in a microwave oven
.
Other plastic products cannot be heated in a microwave oven, and it is not recommended to come into contact with overheated water or food
.
3.
As long as it is a formal and qualified plastic product that meets the national quality requirements, it can be used with confidence
.
As long as it is a formal and qualified plastic product that meets the national quality requirements, it can be used with confidence
.
4.
If you don't know if there is any harm in using plastic products to hold other foods (oil, vinegar, peanuts, seasonings, etc.
), don't use them.
You can use glass, stainless steel and other containers instead
.
If you don't know if there is any harm in using plastic products to hold other foods (oil, vinegar, peanuts, seasonings, etc.
), don't use them.
You can use glass, stainless steel and other containers instead
.
