Black, green, oolong, and white teas all originate from the same source, the Camellia Sinensis plant. However, it is both the kind of camellia sinensis and how the leaves are processed that determines what type of tea we end up with. Black tea typically derives from the camellia sinensis assamica plant which is grown in subtropical climates, often at higher elevations.
How black tea is processed
After a tea leaf is plucked, it is transferred to a processing area where the leaves are carefully withered to achieve the right moisture content and to allow for the development of flavor. The leaves may be rolled to remove extra water content so that they can begin to oxidize. During this process, the leaves blacken and develop flavor. Once this is complete, the tea is tasted, packaged, and shipped!
General Guidelines for Black Tea Preparation:
Use 1 level teaspoon per 6 oz. water. Heat water to boiling. Steep for 2 - 4 minutes. For best taste, do not over steep. Black tea leaves can usually handle a second infusion, and sometimes even a third.