Understanding the Difference between Raw Pu-erh Tea and Ripe Pu-erh Tea Pu’er tea is divided into raw tea and ripe tea rely on whether it is fermented, different crafts also giving them differences in appearance, taste and fragrance.Pu’er or pu-erh is a variety of fermented tea produced in the Yunnan province of China. Fermentation in the context of tea production involves microbial fermentation and oxidation of the tea leaves, after they have been dried and rolled. This process is a Chinese specialty and produces tea known as 黑茶 hēichá (literally, ‘black tea’) commonly translated as ‘dark tea’..com offers 135 yunnan qizi bing cha products. About 37% of these are pu’er tea, 20% are slimming tea, and 1% are white tea. A wide variety of yunnan qizi bing cha options are available to you, such as bag, box, and gift packing.