Tea is mainly the result of "Fermentation" form.  The so-called "Fermentation" is the original colorless tea polyphenols in the polyphenol oxidase catalytic role, after the formation of a red-polymers - black pigment.  Part of this pigment can dissolve in water, formed after the red brewing tea, some do not dissolve in water accumulated in the leaves, the leaves turn red.
 China is the earliest tea Fujian Sung On the small area of black tea, after I had the evolution of black husband.  The making of tea work spread to India, Sri Lanka and other countries, subsequent development of the "broken black tea."  China in 1957 after gradually promote the broken black tea production, therefore, can be divided into small species of black tea, black tea and broken black tea three efforts.
 ① small kind of tea is a unique Fujian tea, Zihong TANG colored leaves, pine smoke smell and taste like soup Longan.  It produced in Fujian Sung On Star NT Dongmu clearance "are kind of small mountains," the best quality.
 ② efforts tea is China's traditional export tea, sold Eastern Europe, Western Europe more than 60 countries and regions.  Main producer in Anhui, Fujian, Hubei, Hunan, Jiangxi, such as more than 10 provinces and autonomous regions.  Anhui produced in the vicinity of the "QI", the shape of the small cable tight, with a similar-Rose (sweet scent), the taste of glycol; produced in Yunnan Fengqing, Menghai "Tianhong" shape fat, significant gold coin , Hongyan liquor color, taste Nongchun.  QI is Dianjiang and enjoy a high reputation in the overseas efforts tea.  Moreover, the "Fujian Red" and Hubei "to red," Jiangxi's "Hung-ling," Guangdong "Guangdong Red" China is a major effort tea category.
 ③ broken black tea is the rub into debris particle shape after drying and made of fermented red take shape detailed chronology also called red tea.  Broken black tea brewing leaching soon after tea, a brew leaching a large quantity of raw materials are suitable for tea, sugar and milk drinking, very tasty.  Broken black tea produced in the main, Yunnan, Hainan, Guangdong, Guangxi, and other provinces.  Usually large leaf of raw materials for processing into the broken black tea, tea-Xianshuang concentrated flavor, with milk, liquor color orange.  Broken black tea by the early Maocha refined processing system after the leaf tea, and broken tea-tea and tea at the end of the four categories.  Leaf tea is a short strip broken black tea, tea is broken particle-broken black tea; tea tablets are small pieces of broken black tea; Ximo-end tea is broken black tea.