eli5 How exactly does one “de-caffeinate” coffee? Are they actually removing the chemical?

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eli5 How exactly does one “de-caffeinate” coffee? Are they actually removing the chemical?

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The best method is EA or ethylene acetate that is derived from sugar cane. When the beans are submerged, it extracts only the caffeine and leaves the flavor compounds in tact, unlike the swiss water method. EA decaf is more expensive since EA is a controlled substance as it is widely used in cocaine production

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