What material is the best water cup to use?

Nowadays, there are many kinds of water cups  made of materials, such as stainless steel, plastic, paper cups, ceramics, glass, etc. Personally, I think it’s best to use glass or ceramic cups for drinking water. The glass does not contain organic chemicals during the firing process, and the glass will not release toxins due to excessive water temperature, making it very safe. The glass surface is smooth and easy to clean, especially bacteria and dirt are not easy to breed on the glass wall. Drinking water from the glass is very healthy and safe. Ceramic cups have similar characteristics to glass cups. However, many ceramic cups are prone to adding harmful glazes during the firing process, which can easily lead to excessive lead content. Therefore, in the selection process, it is best to choose glass cups, followed by ceramic cups.
The glass water cup is elegant and elegant. It can be used for drinking water or as a decoration. Glass cups are the safest and cleaner among all materials. When drinking water, you are very particular about the choice of cup. For safety reasons, it is best to drink from glass water cups.