what chemicals are used in decaffeination process
1 Therefore all decaffeination processes use a decaffeinating agent (such as methylene chloride, activated charcoal, CO 2, or ethyl acetate). 2  These agents help speed up the process and minimize the âwashed-outâ effects that water alone would have on the taste of decaf coffee.s Iâve mentioned above, the decaffeination of coffee involves the use of a decaffeination agent. In solvent-based processes a chemical solvent is added either directly or indirectly to selectively remove the caffeine.