Green tea, known as unfermented tea, is the variety which keeps the original colour of the tea leaves. The primary processing of china green tea inclucdes "fixation", "rolling" and "drying". Because of without fermentation during processing, the chlorophyll still remain in tea leaves, that make the green tea in green color.
The natural health substances in fresh tea leaves are much remained in green tea.Since ancient times, the Chinese have known about the medicinal benefits of green tea, using it as medicine to treat