The term black tea is ambiguous because it refers to different things depending on where you are/who you are talking to. In the west, black tea generally refers

The term black tea is ambiguous because it refers to different things depending on where you are/who you are talking to. In the west, black tea generally refers to a fully oxidized (autolysis) red tea that has not been fermented. However, in other parts of the world black tea refers to fermented puerh. How the puerh is fermented depends on whether it is wet or dry processed (shu vs sheng) but fermentation is an important part of both processes.