According to the Chinese, tea has six colors: green, white, black, red, yellow and turquoise. Green and white teas are also known in Poland. A piece of trivia: the tea which we know as black is called red in China due to the color of the brew. What about the remaining colors? Chinese black teas are usually maturing teas, such as pu’er. Turquoise teas are semi-fermented and include wulong (oolong) teas, also known in Poland as “dragon tea”. Yellow teas are the least known. These rare and expensive teas are only produced in China and Taiwan and very rarely exported to other countries.