Puerh History - Pu-erh.Net

„Head Tea (aka Golden Melon) is shaped like a ball, weighing between 2 Liangs and 10 Jins ( 1 Jin = 500 grams). They were mainly for domestic trade or serving as tributes to emperors. Stacks of Golden Melons progressing in size from gigantic to small are considered to be a status symbol.“

„Mushroom shaped tea appeared in 1912. It was invented at that time in order to prevent the tea from going mouldy during the transportation. It was produced in Xia-Guan and Fo-Hai (two cities in south China) with the trademark "Bao-Yan". The production was then stopped in 1966. In 1986, the production was resumed due to the request of Buddhists in Tibet.“