- Our glass teapot is made of borosilicate lead-free glass, free of any metals and toxins, and can withstand temperatures from -68°F to 302°F, allowing it to be placed directly on a stove top or electric stove. The glass tea pot is also microwave-safe and dishwasher-safe, with a removable infuser made of 18/8 stainless steel and an ultra-fine strainer for filtering most teas. It has a capacity of 20 OZ and an ergonomic design for easy pouring and one-handed operation, with a wide mouth for easy cleaning by hand or in the dishwasher.