Iron kettle heat source: compatible with low gas heat, electric stove, charcoal fire, IH cookware. Product material: cast iron Iron supplementation: The iron supplementation effect is good, and it has an effect that cannot be achieved by the hot water of an aluminum pot or a stainless steel pot. People often say that hot water boiled in an iron kettle is mellow and delicious. It is said that the iron component dissolves, the taste of the water softens, and chlorine is adsorbed in the iron pot. The iron kettle can not only make tea, but also make delicious coffee and tea.