Brewing tea in glass, is one of the preferred ways by tea aficionados. The Double Borosilicate Glass Teapot Set, with Infuser is stackable, quick and easy to use. The glass teapot is dishwasher safe, thermal shock tested and is dishwasher safe. It works on a traditional stove top and on gas stove tops. Handles may get hot during the heating process. Please handle with care.