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A tea bush. Tea drinking in China dates back to before the Tang Dynasty ( 618- 907). Tea is a caffeinated beverage, an infusion made by steeping the dried leaves or buds of the shrub Camellia sinensis in hot water. In addition, tea may also include other herbs, spices, or fruit flavours.
The word "tea" is also used, by extension, for any fruit or herb infusion; for example, " rosehip tea" or " camomile tea." In cases where they contain no tea leaves, some people prefer to call these beverages " tisanes" or "herbal teas" to avoid confusion. This article is concerned with the "true" tea, Camellia sinensis.
Tea is grown primarily in mainland ChinaAll islands except Hainan and Taiwan are invisible on the map. Mainland China ( or , pinyin: Zhongguo Dalu, lit. The Chinese Massive Landmass" or "Continental China"), is an informal geographical term which is usually synonymous with the area currently ad, IndiaThe Republic of India is a large multicultural country in South Asia, with a population of over one billion. The Indian economy is the fourth largest in the world, in terms of purchasing power parity, and is the world's second-fastest growing economy., PakistanIslami Jamhuria Pakistan ( In Detail) ( In Detail) National motto: Iman, Ittehad, Nazm( Urdu: "Faith, Unity, Discipline" Official Language(s) Urdu, English Capital Islamabad Largest City Karachi President General Pervez Musharraf Prime Minister Shaukat Az, Sri LankaThe Democratic Socialist Republic of Sri Lanka (known as Ceylon before 1972) is a tropical island nation off the southeast coast of the Indian subcontinent. Known in ancient times as Lanka Lankadweepa (meaning "Resplendent Land" in Sanskrit), Taprobane an, TaiwanFor the political entity commonly known as "Taiwan," see Republic of China. The island of Taiwan ( Traditional: , Simplified: , Pinyin: Taiwn, Wade-Giles: T'ai-wan, Taiwanese: Tai-oan) is located off the coast of China in the Pacific Ocean. It is also kno, JapanJapan (, Nippon/Nihon literally "the origin of the sun") is a country in East Asia situated on a chain of islands east of the Asian continent on the western edge of the Pacific Ocean. The largest of these islands are, from north to south, Hokkaido , Honsh, Nepal, Australia, Argentina and Kenya. (Note that in the tea trade, Sri Lanka and Taiwan are still referred to by their former names of Ceylon and Formosa, respectively.)
The four main types of tea are distinguished by their processing. Camellia sinensis is an evergreen shrub whose leaves, if not quickly dried after picking, soon begin to wilt and oxidize. This process resembles the malting of barley, in that starch is converted into sugars; the leaves turn progressively darker, as chlorophyll breaks down and tannins are released. The next step in processing is to stop the oxidation process at a predetermined stage by removing the water from the leaves via heating. The term fermentation was used (probably by wine fanciers) to describe this process, and has stuck, even though no true fermentation happens (i.e. the process is not driven by microbes and produces no ethanol).
Tea is traditionally classified into four main groups, based on the degree of "fermentation" undergone:
White tea is produced in less quantities than most of the other styles, and can be correspondingly more expensive than tea from the same plant processed by other methods. It is also less well-known in the US, though that is changing with the introduction of white tea in bagged form.
Unusual variations There are several tea preparations available which do not fit into the usual nomenclature: