Green tea Green tea Green tea is a type of tea that is made from "Camellia sinensis" leaves that have not undergone the same withering and oxidation process used to make oolong teas and black teas. Green tea originated in China, but its production and manufacture has spread to many other countries in Asia. Several varieties of green tea exist, which differ substantially based on the variety of "C. sinensis" used, growing conditions, horticultural methods, production processing, and time of harvest. Although there has been considerable research on the possible health effects of consuming green tea regularly, there is little evidence that
Darjeeling tea 1839 from Kathmandu, Nepal. In 1841, he brought seeds of the Chinese tea plant ("Camellia sinensis") from Kumaun and began to experiment with tea planting in Darjeeling. The British government also established tea nurseries during that period (1847). Commercial development began during the 1850s. In 1856, the Alubari tea garden was opened by the Kurseong and Darjeeling Tea company, followed by others. According to the Tea Board of India, "Darjeeling Tea" can only refer to tea that has been cultivated, grown, produced, manufactured and processed in tea gardens (see 'Tea Estates' section below) in the hilly areas of Sadar Subdivision,