Our glass teapots are made of borosilicate glass. The stove glass teapot can withstand temperatures ranging from -68F to 302F, so it can be placed directly on the stove or electric stove. A glass teapot with a spout can be used on the stove. ? Airtight Bamboo Lid ? The stove glass teapot is equipped with a silicone reinforced bamboo lid, which is 100% airtight and leak-proof. So when you turn the glass teapot, you can enjoy your tea easily without leaking or spilling the boiling hot liquid. This glass teapot has a detachable injector. This teapot is made of 18/8 stainless steel and can filter most types of tea. You can use this glass teapot to brew loose leaf tea, tea bags, flowering camellias, fruit tea and herbal tea. ? Multi-functional ? The 20OZ capacity stove glass teapot allows you to prepare various beverages, tea and coffee as needed, enabling you to enjoy tea time with your family and friends at any social gathering! ? Ideal Gift ? The glass stove teapot with an exquisite gift box is the best gift for your relatives and friends! Such as Mother's Day, Father's Day, Thanksgiving Day, Christmas Day, Thanksgiving Day. ? Easy to Clean ? The glass teapot with a spout is designed with a wide mouth, allowing it to be directly inserted into the teapot and washed by hand.