Few leaves in the world of Chinese Gongfu tea invite as much fascination—and misunderstanding—as Yunnan purple Pu-Erh tea. As early as the Tang Dynasty, tea sage Lu Yu wrote in the Cha Jing (The Classic of Tea) that "purple tea is the finest of teas". Today, tea drinkers encountering purple leaves hear conflicting claims: Is it an ancient wild tree mutation, a laboratory-engineered cultivar, or an antioxidant superfood? Understanding the botany, natural physics, and flavo
