The present application provides a method of producing teas containing gallic acid, including: inoculating tannase producing fungus to teas fermenting the teas inoculated with the tannase producing fungus and baking the fermented teas, so that a weight ratio of gallic acid contained in the fermented and baked teas and the teas before the fermenting and baking is greater than 2. The teas, manufactured by utilizing the method of present application, have a content of gallic acid higher than commercial old oolong tea up to several times. Therefore, the teas containing gallic acid according to the present application have sweet taste, as well as healthcare and health preserving effect.本發明提供一種含沒食子酸之茶葉之製作方法,包含:將單寧酶產生菌接種至茶葉;將經接種單寧酶產生菌之茶葉進行醱酵處理;以及烘焙經醱酵處理之茶葉,從而經醱酵與烘焙處理之茶葉與未經醱酵與烘焙處理之茶葉所含沒食子酸之重量比大於2。運用本發明之製作方法所製成的茶葉,其沒食子酸含量可較市售未處理烏龍老茶高達數倍以上,因此本發明之含沒食子酸之茶葉具有甘甜口感、以及保健與養生功效。101、102、103‧‧‧步驟
