Drinking water from four types of cups is dangerous

Everyone needs to drink water every day, especially when traveling far away. Water is the most indispensable thing. If you take children out, it is best to bring a cup of hot water in a thermos and buy bottled mineral water to mix with the water. It is good for children's gastrointestinal health if they do not drink cold water. However, you should be careful about the cups you use to drink water. You should know that there are four types of cups that are very dangerous to drink water from, and you should try to avoid using them in normal times.

1. Disposable paper cups may contain potential carcinogens

Disposable paper cups only look hygienic and convenient, but in fact the product qualification rate is impossible to judge, and whether they are clean and hygienic cannot be identified with the naked eye. From an environmental perspective, disposable paper cups should be used as little as possible.

Some paper cup manufacturers add a large amount of fluorescent brightener to make the cups look whiter. It is this fluorescent substance that can cause cell mutations and become a potential carcinogenic factor once it enters the human body. Secondly, unqualified paper cups are generally very soft and easily deformed after being poured into water.

Some paper cups have poor sealing, and water easily seeps from the bottom of the cup, which can easily cause hot water to scald your hands. What's more, when you gently touch the inside of the paper cup with your hand, you can feel fine powder on it, and the place where your fingers touch will turn white. This is a typical low-quality paper cup.

2. Plastic cups are most likely to harbor dirt

Plastic cups should also be unwelcome. Because plasticizers are often added to plastics, which contain some toxic chemicals, when you use a plastic cup to hold hot water or boiling water, the toxic chemicals can easily be diluted into the water.

In addition, the internal microstructure of plastic has many pores, which hide dirt, and bacteria can easily breed if not cleaned properly. Therefore, when purchasing plastic cups, be sure to choose water cups made of food-grade plastic that meets national standards.

3. Colorful water cups can easily cause heavy metal poisoning

Colorful cups are attractive, but it’s best not to use them. Because there are huge hidden dangers in those bright colors, especially when the inner wall is coated with glaze. When the cup is filled with boiling water or acidic or alkaline beverages,

Toxic heavy metal elements such as lead in these pigments are easily dissolved in liquids. If people drink liquids containing chemicals, it will cause harm to the human body.

4. Coffee will dissolve when drinking from a metal cup

Metal cups, such as stainless steel, are more expensive than ceramic cups. The metal elements contained in the composition of enamel cups are relatively stable under normal conditions, but they may dissolve in an acidic environment, so it is not safe to use them to drink acidic beverages such as coffee and orange juice.