Blue cast iron teapot Yoho 0.8ml with stainless steel filter for three to four cups of tea. Wazuku teapots are manufactured in Yamagata, Japan, by a company founded in 1604 and operated by the fifth generation of the same family. The word Wazuku signifies the highest quality and purity of steel. For this reason, Wazuku teapots are 25% lighter than other cast...