Sheng or Raw Puerh is a unique Chinese tea which can be divided into two groups: Young and Aged Shengs. Aged Shengs have an enormous value for tea collectors because they are like wine: with time, if properly stored, their flavour improves and their value goes up. That is why there are many collectible teas of this type. Young Puerhs are valued for their rich and robust flavour.
Good quality Sheng Puerh is made in the Yunnan province and is predominantly collected from old trees. It is valued not only for its origin and raw material, but also for the way it was stored, there are three types of conditions: dry, wet or moderately humid conditions. Storage can have a substantial impact on the tea which is why one and the same tea can have very different flavours.