Grapefruit Qingjiangqing black tea is a kind of black tea, which is produced in Minqing County, Fuzhou City, Fujian Province. It is made by withering, rolling, fermenting and drying the fresh leaves of local high-quality red tea trees in Fujian Province. Black tea belongs to fully fermented tea, and its dry tea color and brewed tea soup are mainly red. Black tea can help digestion, stimulate appetite, induce diuresis and reduce swelling, and strengthen heart function.