Soda-lime glass water cup is also the most common glass water cup in our life. Its important components are silicon dioxide, sodium oxide and calcium oxide. This kind of water cup is made by mechanism and manual blowing. It is cheap and is a daily necessities. If sodium-calcium glassware is used for drinking hot drinks, it usually needs to be tempered when leaving the factory, otherwise the cup will crack when the temperature difference is too large. High borosilicate glass water cup, which is named for its high content of boron oxide. The tea sets and teapots commonly used for tea making can withstand large temperature changes without cracking. But this kind of glass looks light and thin, with light weight and poor hand feeling. The crystal glass water cup is a high-end product in glass. Because it contains many metal elements, its refractivity 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 for drinking acidic drinks in common cups. Lead will be dissolved in acidic liquid, and long-term consumption will cause lead poisoning. Lead-free crystal is lead-free and harmless to the body.
The glass surface is smooth and easy to clean. Bacteria and dirt are not easy to grow on the wall of the glass. The most commonly used borosilicate glass water cup does not contain organic chemicals in the process of firing. When making tea or drinking coffee and other drinks with a glass, you do not need to worry about chemicals entering the human body, so drinking water with a glass is relatively healthy and safe.