Tie Guan Yin Oolong tea is a kind originating in Anxi County, Fujian. Iron Goddess of Mercy are ranging between green tea and black tea, semi-fermented, [1] and is considered one of China's top ten tea. Tie Guanyin tea varieties were originally due to its suitable for making oolong tea, oolong finished then its also known as Iron Goddess of Mercy. The so-called Iron Goddess of Mercy Iron Goddess of Mercy tea that is made from oolong tea varieties, there is a saying that "Iron Goddess of Mercy" is the name of the gift of Emperor Qianlong. In Taiwan, this tea refers to a particular kind of Tie Guanyin tea, oolong tea into the legal system, so Taiwan's Tie Guan Yin tea raw materials, can be a variety of Tie Guanyin tea shoots, you can not Tieguanyin varieties of tea buds leaf