China Black Tea
Black tea is a variety of tea that is more oxidized than the oolong, green, and white varieties. All four varieties are made from leaves of Camellia sinensis. Black tea is generally stronger in flavor and contains more caffeine than the less oxidized teas.Black tea's caffeine is approximately 3 %, which is the highest of all the different kinds of tea, but still lower than coffee.
In Chinese languages and neighboring countries, black tea is known as "red tea" , a description of the colour of the liquid; the term black tea refers to the colour of the oxidized leaves. In Chinese, "black tea" is a commonly used classification for post-fermented teas, such as Pu-erh tea; While green tea usually loses its flavor within a year, black tea retains its flavour for several years.
Black tea is also known as "Congous" in the international tea trade business. The name Congous is actually taken from the Chinese term Gongfu or Kung-Fu. Northern Congous are also referred to as black leaf Congous, "the Burgundy of China teas", and southern Congous as red leaf Congous, "the Claret of China teas".