Pu-erh [POO-urr] tea comes from the Yunnan Province in southern China. It is fermented after processing and then aged. This is the only tea which is intentionally aged - the others are always better fresh. The aged tea, often formed into bricks or cakes of different shapes and sizes, tends to get smoother and richer with age. Rare pu-erhs can be 30 years old. Chinese and French studies have documented many health benefits associated with this tea.