Glass teapot is divided into ordinary glass teapot and heat-resistant glass teapot. Ordinary glass teapot, beautiful and good-looking, made of ordinary glass, with heat resistance of 100 ℃ - 120 ℃. Heat resistant glass teapot, made of high borosilicate glass, is generally made by manual blowing, with low yield and more expensive price than ordinary glass. Generally, it can be cooked directly, and the temperature resistance is about 150 ℃. It is suitable for boiling black tea, coffee, milk and other drinks and food directly. It is also suitable for making all kinds of green tea and flower tea with boiling water.