Our glass teapots are made of lead-free borosilicate glass and contain no metals or toxins. A glass teapot with a tea brewer can withstand temperatures ranging from -68F to 302F, so it can be placed directly on the stove or electric stove. This glass teapot for the stove has a detachable injector. This teapot is made of 18/8 stainless steel and features an ultra-fine filter that can filter most types of tea. You can use this glass tea maker to brew loose leaf tea, tea bags, flower tea, fruit tea and herbal tea. ? Multi-functional ? The glass teapot on the stove top has a capacity of 40 OZ. You can prepare various beverages, tea and coffee as needed. It can brew 4 to 6 cups at a time, allowing you to enjoy tea time with your family and friends at any social gathering! ? Ergonomic Design ? This one-handed glass teapot features a heat-resistant handle that conforms to ergonomics, providing a firm grip and smooth tea pouring. The spout of this glass teapot is designed in an eagle's beak shape, making the water flow out more smoothly and continuously. ? Easy to Clean ? The glass teapot features a wide mouth design, allowing you to directly insert it into the teapot and hand wash it.