9 hours for oxidation fermentation of black tea... It is handmade and carefully, and the oxidative fermentation, which is the decisive factor in the taste and aroma of black tea, takes 9 hours. The fruity, floral, and honey-like aromas are created by kneading and this fermentation, a process that I have never seen before. . . . . He showed us everything at Seiwa Tea Factory. ~~~~~~~~~~~~~~~~~~~~~ The ′′ Master ′′ Tea on nhk education tv this month! On Monday, the 3rd week (20th), Mr. Tanaka will actually experience handmade tea in Shizuoka. . This is interesting! Tomorrow's history edition, Isobuchi's appearance! Please watch!