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 and black tea. Green tea originated in China, but its production has spread to many countries in Asia. .Hangzhou is in Zhejiang Province, China. It is one of the most important tourist cities in China, famous for its natural beauty and historical and cultural heritages. It is the political, economic and cultural center of Zhejiang province as well. It's worthwhile to know that it's annoyingly humid in summertime, which is from early .