Caffeine occurs naturally in more than 60 plants, including: • the arabica plant, which produces coffee beans • the Theobroma cacao tree, which produces the beans that are the primary ingredient in chocolate • kola nuts, which many cola drink products are made with • the Thea sinensis plant, whose leaves are used for teas When separated from its sources, caffeine is a white, bitter-tasting powder. See How Caffeine Works for more information about caffeine. Several methods are used to remove caffeine from its natural sources: • Methylene chloride processing • Ethyl acetate processing • Carbon dioxide processing • Water processing Me more.
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