| abstract |
(57) [Summary] [Object] To provide a method for fermenting tea leaves and a device thereof in a novel manufacturing process of black tea or the like, which is capable of producing tea such as black tea using tea leaves for green tea. [Structure] According to the method for fermenting tea leaves in the manufacturing process of black tea or the like of the present invention, in the fermentation process, a case 2 is installed inside a casing 7, raw tea leaves L are arranged inside the casing 2, and hot water or Steam is supplied to control the temperature and humidity inside the casing 7 to promote the fermentation of tea leaves. Hot water or steam is supplied into the housing 7 by the nozzle 6. Furthermore, the temperature inside the housing 7 is maintained at 25 ° C to 35 ° C. The humidity inside the housing 7 is maintained at 90% to 100%. As the raw tea leaves L, tea leaves for green tea are used. Furthermore, the fermentation apparatus 1 supplies a closed casing 7, one or a plurality of cases 2 for directly storing tea leaves installed in the casing 7, and hot water or steam into the casing 7. The nozzle 6 and the temperature controller 3 for adjusting the temperature of the hot water supplied from the nozzle 6 are provided. |