According to the brand introduction, Tanxue Lanfei is a good yellow tea, which is produced in Mengding Mountain, Sichuan Province, and comes from an alpine tea garden over Mengding Mountain 1000 meters. The fresh leaves of high-quality alpine tea trees before the Ming Dynasty are used, and the tea garden is steamed with clouds, with sufficient sunshine, good soil permeability, high organic matter content and rich minerals, which is the natural environment for the growth of tea trees. Gan Lu, the only bud species in Mengding Mountain, is used as raw material, with 50,000 buds per catty, which is made by a unique processing technology.