Water is the source of life. If we don’t drink water for a day, we will feel very uncomfortable. Do you know what materials are used for water cups? Come with me to find out.
1. glass cup
In the case of glass, high borosilicate glass is generally used on the market at present, which is characterized by high temperature resistance and 100° small meaning. Can withstand instantaneous temperature changes around 0-160 without cracking. You need to be careful not to buy low-quality ordinary glasses.
2, plastic cup
Many people worry that plastic water cups will cause cancer. In fact, as long as you choose a brand that meets the national quality inspection standards, it is relatively safe. Generally speaking, the bottom of the plastic cup has the numbers 1-7 printed on it. The higher the number, the higher the quality. The common ones are No. 5 PP (polypropylene) and No. 7 PC (polycarbonate).
3. Ceramic cup
The enamel cups with beautiful appearance and various patterns are very popular among young people. They can be divided into three categories: ceramic cups with no color glaze, colorless inner wall, ceramic cups with underglaze colors, and ceramic cups with colors on the glaze. The colored ceramic cups are first painted with pigments on the glaze, and then baked to dry. In the process of use, it is easy to exude harmful substances and endanger human health. It is not recommended to use.
