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
Tea production in the United States Tea production in the United States "Camellia sinensis" can be grown in warmer parts of the United States and currently the US mainland has a relatively large plantation with full mechanization in Charleston, South Carolina, and numerous small number of commercial tea gardens and smaller artisan operations that currently pick tea by hand. Many smaller sites are looking to mechanize, at least partially, within the next 5 years. Some growers feel that tea production is not viable without some mechanization, but there is evidence that unmechanized tea production is viable, albeit with lower net profit margins. Most domestically grown teas