First, the first choice for drinking teacups should be glasses \ x0d \ x0d \ The first choice for drinking teacups should be glasses. Don't think that glass is just transparent and beautiful. Among all the cups made of materials, the glass is the healthiest. \x0d\ Glass contains no organic chemicals during firing. 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 water from glasses. \x0d\ Secondly, we also advocate the use of enamel cups \ x0d \ x0d \ because enamel cups are made of high-temperature enamel at thousands of degrees and do not contain some harmful substances, so you can use them with confidence. \x0d\ colorful ceramic cups are actually hidden in those bright pigments, especially when the inner wall is glazed. When the cup is filled with boiled water or drinks with high pH, toxic heavy metal elements such as lead in these pigments are easily dissolved in the liquid, and people drinking the liquid containing chemical substances will do harm to the human body. \x0d\ Plasticizers are often added to plastics, which contain some toxic chemicals. When hot water or boiled water is filled in plastic cups, toxic chemicals are easily diluted into water. There are many pores in the internal microstructure of plastic, which contain dirt. If it is not cleaned properly, bacteria can easily breed.