- Coffee Science Information Centre

- Coffee Science Information Centre ()

  „Commercial decaffeination processes were initiated in Germany during the early part of the 20th century. Today there are a variety of different methods employed to remove the caffeine from coffee beans, with all processes safely and selectively removing about 97-98% of the caffeine. The process of decaffeination is carried out while the beans are still'green', before they are roasted and the aroma develops.“

http://www.cosic.org/background-on-coffee/ coffee-production - Cached

See Technorati for links to this site, see Alexa for related sites and search this website for ›The Coffee Bean‹.

Some slightly related:

Coffee Decaffeination Coffee Decaffeination

  „In the Swiss Water Process the green beans are soaked in hot water to remove the caffeine and compounds responsible for much of the flavor of the coffee.  The first batch of beans is then discarded, while the caffeine is stripped from the solution by means of activated carbon filters.  This leaves a solution saturated with flavor compounds, which is then used to soak a new batch of green coffee.  The principle is that the solution is saturated with all components soluble in water other than caffeine, and therefore only the caffeine in the bean is allowed to escape whereas the rest of the compounds are in equilibrium.  Unfortunately, the flavor of batches is intermixed since the chemically saturated solution is used repeatedly.“

http://www.coffeeresearch.org/science/ decaffeination.htm - Cached

CoffeeGeek - Espresso: Espresso Blends, Black Cat Hi Test/Decaf CoffeeGeek - Espresso: Espresso Blends, Black Cat Hi Test/Decaf

  „I have always assumed that the gooey stuff on the outside of decaf beans arises because of the decaffeination process. This I imagined to be dissolving the caffeine and other stuff with a solvent (hopefully water, but not always), then removing the caffeine from the solvent, putting back by the liquid solvent with all the other stuff, and evaporating the solvent, so that the other stuff is now stuck to the outside of the bean.“

http://www.coffeegeek.com/forums/espresso/blends/ 17976 - Cached

BSCA - BSCA Certified Roasted Coffees - SPRESS CAFÉ BSCA - BSCA Certified Roasted Coffees - SPRESS CAFÉ

  „Decaf: This coffee pass through a decaffeination process where the still green beans are washed in order to remove the caffeine until almost none is left (Max. 0,06%). After this process the beans are normally roasted.“

http://www.bsca.com.br/ certified.php?lang=en&certified_id=7 - Cached

The Coffee Review - the world's leading coffee buying guide The Coffee Review - the world's leading coffee buying guide

  „Traditional Process, European Process.  A group of decaffeination methods that use solvents to remove caffeine from green coffee beans. The direct solvent method involves treating the beans with solvent, which selectively unites with the caffeine and is removed from the beans by steaming. The indirect solvent or solvent-water method involves soaking the green beans in hot water, removing the caffeine from the hot water by means of a solvent, and recombining the water with the beans, which are then dried. “

http://www.coffeereview.com/ glossary.cfm?alpha=t - Cached

Caffeine and The Bean (INeedCoffee.com) Caffeine and The Bean (INeedCoffee.com)

  „It is a very effective solvent at the high pressures. When the coffee beans are exposed to the solvent, the caffeine migrates to the solvent. When the removal of caffeine is complete, the now caffeine-rich carbon dioxide is passed through either an activated charcoal bed or a bath of water to absorb the caffeine for re-use. Like other chemical methods, the Supercritical Carbon Dioxide method removes 96 - 98% of the caffeine.“

http://www.ineedcoffee.com/99/06/decaf/ - Cached


Archived in The Coffee Bean, Bean, Beans, Coffee, Coffee Bean, Coffee Beans