Perjoy Teapot Gives You a Graceful Teatime at Any Time Perjoy large teapot with cups set is made of borosilicate glass. The teapot is safe to use on stovetop and electric ceramic stove and can be used in the dishwasher, it also can be kept warm on a flame teapot heater, or cooled in the fridge for cold tea. The transparent glass can clearly see the change inside the teapot and the beautiful color of the tea leaves as they boil. We have added the tea filter, which is specially designed for artistic flowers tea. Let you have an enjoyable and unforgettable tea time.