The race of Zhengshan at 50 yuan a catty is unreliable. The authentic race in Zhengshan is limited by the origin, so Mutong Village in villages and towns and Wuyishan Nature Reserve in Wuyishan City are improvised. Only the tea produced within this range can be called "Zhengshan variety", because Mu Tong Village is no longer allowed to open up new tea gardens in nature reserves. There are so many original tea gardens that the output of Zhengshan Race is limited, and the market price of a catty is in four figures. So 50 yuan's one-kilo race is fake.