Puer Tea Glossary - Zhi Zheng Tea Shop

„tong; 筒 - Literally a barrel or barrel shaped object. A tong in Yunnan tea culture is a bundle of 7 tea cakes wrapped in the outer skin of bamboo which naturally sheds from around the base of the bamboo stem. Each cake weighs 357grams so making a total of 2,499 gm. Said by some to have been calculated in order to remain under a specific legislated weight of 2.5 kg. There were originally said to be 8 cakes in a tong. The 8th being paid as a levy. An earlier unit of weight in China was the liang. A cake of tea weighed 7 liang and 7 cakes in a tong made 49 liang. “

„There is also a lack of formal definition for "gu shu." Some say "gu shu" should only refer to trees over 300 years of age, that is left to grow tall, and not pruned back. But in reality, most "gu shu" trees are cultivated, which entails annual pruning to encourage regrowth & lower branches for easy picking. A lot of "gu shu" on the market comes from trees as young as 100 years old, some of which is as short as 1.5m high. But a 100 year old tea tree growing in the wild can also grow higher than 3m high. Eventually the government will legislate what classifies as "gu shu." Until then, let the buyer beware!“