The lid of the thermos cup is plastic. Will drinking water affect it?

The lid of the thermos cup is food-grade PP plastic, which has no effect on drinking water.

The plastic cover of the warm cup is food-grade PP (cup cover). Like many big brands, the cover is made of this material. For example, FACE is a food-grade PP (cover), mainly because the PP material can withstand the high temperature of 130℃ and can be used as a microwave lunch box. Low temperature resistance is also strong. In addition, the rubber ring also adopts food-grade soft rubber ring.

Children's thermal insulation liner is 3 16 stainless steel liner. Compared with 304 stainless steel liner, the material of 3 16 makes the structure strength of the cup higher and prolongs the service life of the cup.

Extended data:

Use plastic grade:

First, the bottom of the container will be marked with food-grade plastic. The numbers 1-7 respectively represent plastics with different compositions. These words are in a triangle surrounded by three arrows. Everyone must pay attention, otherwise it will do harm to the body.

1. polyethylene terephthalate

Mineral water bottles and carbonated beverage bottles are made of this material. Beverage bottles cannot be recycled with hot water. This material is heat-resistant to 70℃ and is only suitable for warm or frozen drinks. When filled with high-temperature liquid or heated, it is easy to deform and substances harmful to human body are dissolved out.

Moreover, scientists have found that this plastic product may release carcinogens after 10 months, which is toxic to human body. Therefore, drink bottles should be thrown away when they are used up. They should not be used as cups or as storage containers for other items, so as not to cause health problems.

2. High density polyethylene

Plastic containers for cleaning products and bath products. At present, most plastic bags used in supermarkets and shopping malls are made of this material, which can withstand the high temperature of 1 10℃, indicating that plastic bags for food can be used to hold food. Plastic containers containing cleaning products and bath products can be reused after careful cleaning, but these containers are usually not easy to clean, leaving the original cleaning products and becoming a hotbed of bacteria. If the cleaning is not thorough, it is best not to recycle it.

3. PVC

According to reports, plastic products made of this material are prone to produce toxic and harmful substances from two aspects, one is monomolecular vinyl chloride that is not fully polymerized in the production process, and the other is harmful substances in plasticizers. These two substances are easy to precipitate when they encounter high temperature and oil, and toxic substances are easy to cause cancer after entering the human body with food.

At present, containers made of this material are rarely used for packaging food. If it is in use, don't let it get hot.

4. Low density polyethylene

Plastic wrap and plastic film are both made of this material. Heat resistance is not strong. Generally qualified PE plastic wrap will melt when the temperature exceeds 1 10℃, leaving some plastic preparations that cannot be decomposed by human body. Moreover, food is wrapped and heated with plastic wrap, and the oil in food can easily dissolve the harmful substances in plastic wrap. Therefore, before putting food into the microwave oven, you must first remove the wrapped plastic wrap.

5. Polypropylene

The microwave lunch box is made of this material, which is resistant to high temperature 130℃ and has poor transparency. It is the only plastic box that can be put into the microwave oven and reused after careful cleaning. It should be noted that some microwave lunch boxes are made of PP 05, but the lid is PS 06. PS has good transparency, but it is not resistant to high temperature, so it can't be put in the microwave oven with the box.

To be on the safe side, open the lid before putting the container in the microwave oven.

6.polystyrene

This is the material used to make instant noodle boxes in bowls and foamed fast food boxes. Heat-resistant and cold-resistant, but it can't be put into the microwave oven to avoid releasing chemicals when the temperature is too high. Moreover, it cannot be used to hold strong acids (such as orange juice) and strong alkaline substances, because it will decompose polystyrene that is not good for human body. Therefore, you should try to avoid packing hot food in fast food boxes.

7.PC and other classes

PC is a widely used material, especially for making bottles and space cups. This is controversial because it contains bisphenol A. Experts point out that in theory, as long as bisphenol A is completely converted into plastic structure in the process of manufacturing PC, it means that the product has no bisphenol A at all, let alone released 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 drink. Therefore, special attention should be paid when using this plastic container.

References:

Baidu encyclopedia-plastic