How is caffeine removed from decaf coffee? - BBC Science Focus Magazine - Deepstash

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How is caffeine removed from decaf coffee? - BBC Science Focus Magazine

sciencefocus.com

Removing caffeine from coffee

Coffee beans are first softened in hot water or steam. Then caffeine is dissolved from the beans by using a solvent such as methylene chloride, ethyl acetate, or a gentler solvent such as water itself.

Liquid carbon dioxide is a much more expensive alternative, but has the...

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The solvents used to obtain decaf coffee also remove some of the flavour molecules. These are then added back.

One way is to perform a first extraction with water, then shake up the water with a small volume of methylene chloride, or pass it through a charcoal filter. Both processes selec...

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