Tennouzan Matcha Tennouzan is our most beloved Koicha (thick tea) matcha. Not only does it offer a rich umami flavour and a distinctive covered tea aroma, but it also features a delightful fragrance from the young tea leaves used (known as "mirume ka"). This matcha provides an exceptional tasting experience. We recommend it for tea ceremonies, as its quality surpasses even our Senjin no Mukashi grade for Koicha. About Yamamasa Koyamaen Yamamasa Koyamaen traces its roots back to the early Edo period, when the family's ancestors began cultivating and producing tea in the Uji-Okura region. For generations, they have passed down their traditional techniques, continuing to refine and perfect the art of tea production. Known for selecting superior tea cultivars, Yamamasa Koyamaen has been honored with 18 distinguished tea names from the grand masters of various schools of the Japanese tea ceremony. Today, Yamamasa Koyamaen is a leading producer and wholesaler of premium teas, including matcha, gyokuro, and sencha, supplying over a thousand tea retailers, tea utensil shops, department stores, and businesses across Japan and internationally. The company, which celebrated its 160th anniversary in 2021, maintains full control over its matcha production process, from cultivation to grinding, ensuring the highest quality in every batch.