Tea is amongst probably the most widely consumed beverages within the world, subsequent only to water and properly ahead of coffee, beer, wine and carbonated soft drinks [3]. It can be categorized into three kinds, according to the level of fermentation, i.e. green (unfermented), oolong (partially fermented) and black (fermented) tea. The term fermentation is normally produced use of incorrectly in tea processing. The far a lot more appropriate term should be oxidation, which imply sexposure to air whilst drying with out having any additives all through the procedure. A further form of tea is white tea which may be created from new growth buds and young leaves which have been steamed to inactivate polyphenol oxidation soon after which dried. The buds may possibly be shielded from sunlight to stop formation of chlorophyll. With the , two.5 million metric tons of dried tea manufactured, only 20% is green tea and considerably less than 2% is oolong tea.