This dark green teapot is made of iron and has enamel coating on the interior to prevent rusting. Cast ironware is known to heat tea evenly and also retains heat for the perfect cup of tea. This 54 Ounce Cast Iron Teapot can also be used on your stovetop. Cast iron teapots normally keep tea hot for 1 hour, so you can enjoy tea time without having to reheat. Cast iron teapots are the ultimate way to brew tea and these teapots will last for many years.