What kind of cup is the healthiest for drinking water

Cups are the most common daily necessities, but the more common something is, the easier it is to be dazzled because there are so many types. According to the International Food Packaging Association, choosing a cup is not a trivial matter because it affects your health. So, what kind of cup is the healthiest for drinking water? See what the experts recommend.

1. Don’t drink coffee 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 in an acidic environment, metal cups may dissolve metal. Therefore, it is unsafe to drink acidic beverages such as coffee and orange juice from these cups, because the dissolved metals are harmful to humans if eaten.

2. Disposable paper cups may contain carcinogens

Disposable paper cups 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 cells to mutate and become a potential carcinogenic factor once it enters the human body. Secondly, unqualified paper cups are generally soft in body and easily deformed after pouring water into them. 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 a fine powder on it, and the place where your fingers touch will turn white. This is a typical inferior paper cup.

3. 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 will easily be diluted into the water. In addition, the internal microstructure of the plastic has many pores, which hide dirt. If it is not cleaned properly, it will easily breed bacteria. Therefore, when purchasing plastic cups, be sure to choose water cups made of food-grade plastic that meets national standards.

4. Beware of heavy metal poisoning when using colorful cups

Colorful cups are attractive, but it’s best not to use them. Because there are huge hidden dangers in those bright pigments, especially when the inner wall is coated with glaze. When the cup is filled with boiling water or highly acidic or alkaline beverages, the toxic heavy metal elements such as lead in these pigments will easily dissolve in the liquid. When people drink the liquid containing chemicals, it will cause harm to the human body.

5. The healthiest cup material is glass

Of all cups made of different materials, glass is the healthiest. Glass cups do not contain any organic chemicals during the firing process. When people use glass cups to drink water or other beverages, they do not have to worry about the chemicals being drunk into their stomachs. Moreover, the glass surface is smooth and the cup wall is transparent, making it easy to detect dirt and easy to clean it. Bacteria and dirt are not easy to breed on the cup wall, so it is the healthiest and safest for people to drink water from glass cups.

Although glass cups do not contain chemicals and are easy to clean, they are easy to burn themselves accidentally because of the strong thermal conductivity of glass. If the water temperature is too high, it may cause the cup to burst. Try to avoid filling it with hot water.

6. Unglazed ceramic cups are both heat-insulating and safe

When drinking water, the best choice is a ceramic cup without glaze, especially the inner wall should be colorless. Not only is the material safe and resistant to high temperatures, it also has relatively good thermal insulation effects, making it a good choice for drinking hot water or tea.