Whether it is drinking milk tea, drinking water or drinking coffee, we will use the cup, and if we look closely, we will find that the things we drink are different, and the material of the cup is also very different.
A few days ago, my friend came to visit my house, and I used a plastic cup to get him hot water, and he was not happy at the time, telling me to throw the plastic cup away quickly. At first I was puzzled, until he told me about the harm of plastic cups with hot water, I didn't understand. Which cups are not recommended? Let me tell you!
Plastic cup
Many people have plastic cups at home, and plastic cups are often used to receive guests.
But in fact, plastic cups are not recommended to be used to fill hot water, the average person buys at home what kind of soft transparent plastic cup, the heat resistance of this plastic cup is not good, more than 110 ° C will appear hot melt phenomenon.
Once the phenomenon of hot melt occurs, plasticizers and harmful chemicals in plastics will be diluted into the water, and such water will affect human health when drunk.
If you must buy a plastic water cup, please pay attention to the number at the bottom of the good - No. 3 PVC water cup, it is best not to buy. No. 6 PS water cup, and heat-resistant and hardy, but can not be put into the microwave.
Disposable paper cups
There are three kinds of disposable paper cups on the market, the first is made of white cardboard, which cannot be used to hold wet things, such as water and oil.
The second is a waxed paper cup, which is soaked in wax so it is more waterproof and thick. However, the water temperature inside should not exceed 40 ° C, otherwise the wax will melt and release carcinogens.
The third is a paper-plastic cup, which is a layer of paper on the outside and a layer of laminated paper on the inside. Some unscrupulous merchants will add a large number of fluorescent whitening agents in order to make the paper cup look whiter, and once this substance enters the human body, it will increase the risk of cancer.
Ceramic cup with color on the inner wall
Not that all ceramic cups are not recommended, I am referring here to ceramic cups with color on the inside.
Once you use this cup to fill boiling water or drinks with high pH, toxic heavy metal substances such as lead in the pigment will dissolve, and drinking it will have a certain impact on human health.
Which cups can be used?
Among all the material cups, the glass is the healthiest, and the glass I use to drink water at home is the glass.
Compared with other cups, glasses do not contain harmful heavy metals and organic chemicals, whether it is holding water or various beverages, there is no need to worry about the precipitation of harmful substances.
The only drawback of the glass is that it is fragile.
Well, around which cups are not recommended to be used in detail, I will summarize it again:
Plastic cups, disposable paper cups, ceramic cups with color on the inner wall are not recommended to buy, these cups are more or less harmful to the human body.
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(Picture from the Internet, invasion and deletion)