Coffee, beverage brewed from the roasted and ground seeds of the
tropical evergreen coffee plants of African origin. Coffee is one of the
three most popular beverages in the world (alongside water and tea) and
one of the most profitable international commodities. Though coffee is
the basis for an endless array of beverages, including espresso,
cappuccinos, mochas, and lattes, its popularity is mainly attributed to
its invigorating effect, which is produced by caffeine, an alkaloid
present in coffee.
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