This kind of glass contains no organic chemicals in the firing process. When people drink water or other drinks from glasses, they don't have to worry about chemicals being drunk into their stomachs. Moreover, the glass surface is smooth and easy to clean, and bacteria and dirt are not easy to breed on the glass wall. Therefore, it is the healthiest and safest for people to drink the water in the glass.
In addition, experts also advocate the use of enamel cups, because enamel cups are made of thousands of degrees of high-temperature enamel and do not contain harmful substances such as lead, so they can be used with confidence.
Four kinds of cups are not suitable for drinking water.
1, disposable paper cups or hidden potential carcinogens. Disposable paper cups only look hygienic and convenient, but in fact, the product qualification rate can't be judged, and whether it is clean or not can't be recognized by the naked eye. From the perspective of environmental protection, disposable paper cups should be used as little as possible. Some paper cup manufacturers add a lot of fluorescent brighteners to make the cups look whiter.
It is this fluorescent substance that can mutate cells, and once it enters the human body, it will become a potential carcinogen; Secondly, those unqualified paper cups are generally soft and easy to deform when poured into water. Some paper cups are poorly sealed, and the bottom of the cup is easy to seep, which makes it easy for hot water to burn your hands. What's more, if you gently touch the inside of the paper cup with your hand, you can feel fine powder on it, and it will turn white when you touch it with your fingers. This is a typical inferior paper cup.
2, plastic cups are the easiest to hide evil and accept evil. Plastic cups should also be a kind of unpopular. Because plasticizers are often added to plastics, plastics contain some toxic chemicals. When hot water or boiled water is filled in plastic cups, the toxic chemicals are easily diluted into water. There are many pores in the internal microstructure of plastics, which hide dirt. If it is not cleaned, bacteria can easily breed. Therefore, when purchasing plastic cups, you must choose food-grade plastic cups that meet the national standards.
3. Multicolored water cups are easy to cause heavy metal poisoning. Colorful cups are attractive, but you'd better not use them. Because those bright pigments have great hidden dangers, especially when the inner wall is glazed, when the cup is filled with boiled water or drinks with high acidity and alkalinity, toxic heavy metal elements such as lead in these pigments are easily dissolved in the liquid, and people will do harm to the human body if they drink the liquid containing chemicals.
4, metal cups will dissolve when drinking coffee. Metal cups, such as stainless steel, are more expensive than ceramic cups. Metal elements contained in enamel cups are usually stable, but they may be dissolved in acidic environment, so it is not safe to drink acidic drinks such as coffee and orange juice.
People's Network-What is the best cup for drinking water? None of these four cups is suitable for drinking water.