tea pot 1).maintain healthy condition 2).keep the tea in fresh taste 3).artisitic, ... teapot:1.Yixing clay Teapot(Purpleclay teacup can keep the tea and coffee in fresh taste 3 ... teapot ) is a rare earth, from scientific research, purple clay does not contain lead, arsenic, cadmium, chromium, ... harm to human healthy, whereas the research proves that purple clay contains SiO2, Al2O3, Fe2O3, MgO, CaO, ...