... maintain healthy condition keep the tea in fresh taste pottery teapot1.Teapot can keep the tea and coffee in fresh ... it with artistic culture3.The purple clay is a rare earth, from scientific research, purple clay does not contain lead, arsenic, cadmium ... harm to human healthy, whereas the research proves that purple clay contains SiO2, Al2O3, Fe2O3, MgO, CaO, these minerals are so ...