It is prepared by pouring hot or
boiling water over cured or fresh leaves of Camellia sinensis , an
evergreen shrub native to China and East Asia. After water, it is the most
widely consumed drink in the world. There are many different types of tea;
some, like Chinese greens and Darjeeling, have a cooling, slightly bitter,
and astringent flavour, while others have vastly different profiles that
include sweet, nutty, floral, or grassy notes. Tea has a stimulating
effect in humans primarily due to its caffeine content.
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