Green tea is made from the leaves from Camellia sinensis that have undergone minimal oxidation during processing. Green tea originated in China, but it has become associated with many cultures throughout Asia. Green tea has become the raw material for extracts used in various beverages, health foods, dietary supplements, and cosmetic items. Many varieties of green tea have been created in the countries where it is grown. These varieties can differ substantially due to variable growing conditions, horticulture, production processing, and harvesting time.
Chinese tea can be classified into five distinctive categories: white, green, oolong, black and post-fermented. Others add categories for scented and compressed teas. All of these come from varieties of the Camellia sinensis plant.
Vietnamese tea produced in Vietnam include black tea, which is mostly exported, green tea, which is also a popular part of Vietnamese culinary traditions, and some special kinds of teas like Lotus tea, Jasmine tea, Oolong tea and Pu-erh tea.