The process of creating black tea involves withering the leaf after harvest to reduce moisture, then rolling the leaf to break cell membranes and release enzymes, then "fermentation" -- which we now know to be chemically a form of enzymatic oxidization (rather than true fermentation which involves bacteria). One factor in creating the flavor is the degree to which a producer allows the leaf to "ferment" Product Info Ingredients: Black tea Harvest: Summer Cultivar: Koshun Region: Shimada, Shizuoka Producer info Name: Kaneroku Matsumoto Tea Garden Type: Family business, tea farm & factory Location: 1806-21 Kiriyama, Shimada-shi, Shizuoka-ken 428-0035