Tea is amongst one of the most widely consumed beverages inside the globe, subsequent only to water and properly ahead of coffee, beer, wine and carbonated soft drinks [3]. It might 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 made 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 throughout the process. A further type 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 might be shielded from sunlight to quit formation of chlorophyll. With the , two.5 million metric tons of dried tea manufactured, only 20% is green tea and much less than 2% is oolong tea.