Green tea may be a variety of tea that's made of shrub leaves and buds that haven't undergone an equivalent withering and chemical reaction method accustomed build tea teas and black teas. tea leaf originated in China, however its production and manufacture has unfold to different countries in East 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 drinking green tea has any effects on health.