1 liter glass teapot Usage tips Place the amount of herbal tea or tea directly into the teapot, then pour your water at the ideal temperature over it. Let infuse. Manufacturing The glass technique at the Bore has been known since the end of the 19th century. It consists of adding boron silicate to the usual glass ingredients (quartz, sodium carbonate and aluminum oxide). The glass thus designed, heated to a higher temperature than standard glass, becomes much more resistant to heat and more resistant to impact. Each teapot is hand-formed from a thick glass tube. Blowing is mechanized. The body is first formed by blow molding and manual stretching over a blowtorch. Then the details are executed one by one with the pliers and by turning over the flame. Native country China, Guangdong Province Maintenance tips To be cleaned with mild biological dish detergent without rubbing. Wipe with a soft cloth. Handle with care and avoid shocks. Do not use if cracked or partially damaged.