IGNOU LSE 13 2018 - How the decaffeinate coffee is prepared?

Question

How the decaffeinate coffee is prepared?

23 Jan 2018

Answer :

Word Count : 198

decaffeinate coffee is prepared by following ways -

Direct method

In the direct method, the coffee beans are first steamed for 30 minutes to open their pores and then repeatedly rinsed with either dichloromethane or ethyl acetate for about 10 hours to remove the caffeine. The caffeine-laden solvent is then drained away and the beans steamed to remove residual solvent

Indirect

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