1. The soda lime glass water cup is also the most common glass water cup in our life. Its important components are silicon dioxide and sodium oxide, calcium oxide. This kind of water cup is made by mechanism and manual blowing, and it is cheap and commonly used in daily life. If the soda-lime glassware is used for drinking hot drinks, it usually needs to be tempered when leaving the factory, otherwise the cup will crack if the temperature difference is too large.
2. High borosilicate glass water cup, which is named after the high content of boron oxide. The tea sets and teapots commonly used for making tea can withstand large temperature changes without breaking. But this kind of glass looks thin, light in weight, and feels bad.
3. Crystal glass water cup, this kind of glass is a high-end product in glass. Because it contains many metal elements, its refraction and transparency are very close to natural crystal, so it is called crystal glass. There are two kinds of crystal glass, lead crystal glass and lead-free crystal glass. Lead crystal glass is not recommended for consumption, especially when drinking acidic beverages from water cups. Lead will dissolve into acidic liquids, and long-term consumption will cause lead poisoning. Lead-free crystal is lead-free and harmless to the body.
