Liu Bao (Six Forts) Tea comes from Guangxi Provence and is a sister tea of Pu-erh. Liu Bao is distinctively aged in baskets that range in size from 1 kilo to over 50 kg. Liu Bao is a semi femented (oxidized) tea and the older varieties take on a woody flavor that is hard to beat. Many Pu-erh enthusiasts find themselves wandering into the Liu Bao section and find it hard to leave. More traditional Liu Bao was semi fermented and this accounts for it's special flavors. Some say that this process is where the shu Pu-erh process of the 1970's really originated from. There are more drinkers of Liu Bao than old teas, so rarity increases.