Borosilicate glass is the clear choice for a Glass Teapot. Heat resistant up to 450˚F, this organically shaped tea brewing unit is stylish enough to be placed on the table alongside dessert, and holds 40 oz of liquid. Simply fill the strainer with loose tea or bags, place it inside the pot and fill with hot water. Pair it with the Tea Warmer (sold separately) to keep your tea at a comfortable brewing temperature. Heating the Teapot on a stovetop burner is not recommended. Dishwasher and microwave safe.