1, read tea appearance. New tea color than fresh, with Baekho, and the strong flavor; tea after a long period of post-oxidation after tea appearance will be a red jujube, Baekho also turn into yellow.
2, differentiated packaging color. The aging normally suppress the tea, packaged White has become obsolete with the passage of time, thus slightly yellow paper, so you can manually from the paper and printed color Buwen of aging begin, it is only as a reference, non - absolute basis, because there may be some unscrupulous businessmen will take advantage of this psychological, Chen Huang to the secondary packaging materials Nuofu 3, read tea for the year. Generally speaking, the tea is usually the year are as follows: 1937 production of this period before the tea called "antique tea," also called grade of tea, such as the centuries-employed, with the centuries-tribute, a hundred years Celebration of the same old Chang , King of Song recruits. Usually putting in the tea cake made with a glutinous rice, as on the printed name of the paper, called "Flying."
1949-1967, China's tea industry production "by the Indian level to" tea products, which is in the packaging of tea characters, a different color marker for the first batch of Gongyi, for the second batch of Indian blue, yellow and India for the first three batches. At this time in 1976 after the production of tea cakes no longer printed on the packaging of Chinese tea industry company name, by the tea factory to the production-on-demand, collectively, the "Yunnan Seven cakes", including:-India 73 Green Green cake pie, big green Indian population, small Huang, such as India.
