2. Glass is the healthiest. Glass contains no organic chemicals in the firing process. 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, so it is healthy and safe for people to drink water from the glass.
3. Ceramic cups are cups made of ceramics, which are used to hold wine, water, tea and other utensils. The so-called ceramics refer to ceramic products that are made of clay or other inorganic nonmetallic raw materials and processed by molding and sintering, and are used to decorate and protect the walls and floors of buildings, and are plate-shaped or blocky in shape. After drying, it is heated to a certain degree to make it hard and no longer soluble in water.