Black and green tea

Black tea is fermented, green tea remains unfermented. Green tea is a type of tea that is made from Camellia sinensis leaves and buds that have not undergone the same withering and oxidation process which is used to make oolong teas and black teas. Black tea, also literally translated as red tea from various East Asian language, is a type of tea that is more oxidized than oolong, yellow, white and green teas. Black tea is generally stronger in flavour than other teas. All five types are made from leaves of the shrub, or small Tree, Camellia sinensis, though Camellia taliensis is also used rarely.Green tea comes from the plant Camellia sinensis. Black tea, green tea, and oolong tea are all made from the same plant but are prepared using different processing methods. Green tea extract contains polyphenols. These include the most active type, epigallocatechin gallate.