Tea

18.2 Green, black and oolong tea The difference between green, oolong and black tea relates to the degree of fermentation. Green tea The leaves used for green tea are steamed, rolled and dried. Black tea The leaves used for black tea are withered first, then rolled or cut and left to fully ferment. Oolong tea The leaves used for oolong tea are processed in a similar manner to black tea, just not fermented as long.

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