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How is caffeine removed from de-caff tea and coffee?

Posted on March 9, 2008 by Wyken Seagrave

How is caffeine removed from de-caff tea and coffee?
D a chambers from West Yorkshire (Age 55+)

Filed under: age 55+, Answered Big Questions, Food Big Questions, Martin McCoustra's Big Answers |

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One Response

  1. Martin McCoustra, on March 10, 2008 at 10:03 am said:

    The caffeine is removed from tea and coffee by dissolving it out of the tea leaves or coffee powder using a solvent. In the past, organic solvents were used. Today decaffeination uses supercritical carbon dioxide as solvent.

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