High borosilicate glass material, Sturdy and food-graded 304 stainless steel design, stainless steel spout filter, stainless steel lid, stainless steel edging, stainless steel heating plate. maximize the safety for your family. 100% BPA free, enjoy your favorite hot beverage. smart keep warm function can keep water warm for 1 hour. UK strix controller, Boil dry overheat protection, Finish boiling shut down.1.7 Liters capacity support the whole family.