Black tea, called red in Asia according to the color of the infusion, means basically fully oxidized tea leaves. Not fermented, those would be Puerh teas. We sell black tea from almost all areas of its production. We started with teas from Darjeeling, Nepal, Indian Assam, and also Ceylon (Sri Lanka). Later we added black (red) teas from Taiwan and Japan. It was initially believed that black and green teas come from two different types of Chinese tea shrub. At least this is what the Swedish botanist Carl Linneaus published. However, both types come from a single plant, Camelia sinensis.