Yixing teapots are known to brew the best tea. The natural, unglazed Zisha and Zuni clays are lead free and retain heat well. The semi porous clay slowly absorbs the flavors of the tea and ‘seasons’ the teapot. Yixing teapots hold about 5-10 oz. of water and are perfect for brewing gongfu style tea that is more concentrated and flavorful.