In the Kamakura era, a Zen monk studied at Mt. Tenmoku, which was a center of Chinese Zen Buddhism. He brought back the custom of drinking tea together with iron-glazed pottery. Since then the iron-glazed tea cup has been called “Tenmoku.” The Fudogama Tenmoku series features a beautiful contrast of an unglazed outside and a glossy inside with an iron glaze. It is thinner and lighter than usual pottery.