Method for the decaffeination of roasted coffee extracts
First Claim
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1. A method of decaffeinating aqueous roasted coffee extracts which comprises:
- (a) loading an organic caffeine solvent with hydrolyzed roasted coffee solids obtained from roasted coffee grounds after the grounds have been at least thoroughly atmospherically extracted of at least 20% of the solids therein;
(b) contacting an aqueous extract of roasted and ground coffee with the loaded organic caffeine solvent of (a) for a period of time sufficient to transfer at least 96% of the caffeine from the aqueous roasted coffee extract to the loaded caffeine solvent;
(c) separating the roasted decaffeinated coffee extract from which the caffeine has been transferred from the then caffeine-containing loaded organic caffeine solvent; and
(d) drying the roasted decaffeinated coffee extract.
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Abstract
A method of decaffeinating aqueous roasted coffee extracts is disclosed. An organic caffeine solvent is first loaded with essentially hydrolyzed coffee solids. The aqueous roasted coffee extract is contacted with the loaded organic caffeine solvent for a sufficient period of time to transfer at least some of the caffeine from the coffee extract to the caffeine solvent, whereupon the extract is separated from the caffeine-containing solvent. The resultant coffee extract has been found to have noticably more body notes than a coffee extract which is decaffeinated with a solvent that has not been loaded with hydrolyzed coffee solids.
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23 Claims
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1. A method of decaffeinating aqueous roasted coffee extracts which comprises:
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(a) loading an organic caffeine solvent with hydrolyzed roasted coffee solids obtained from roasted coffee grounds after the grounds have been at least thoroughly atmospherically extracted of at least 20% of the solids therein; (b) contacting an aqueous extract of roasted and ground coffee with the loaded organic caffeine solvent of (a) for a period of time sufficient to transfer at least 96% of the caffeine from the aqueous roasted coffee extract to the loaded caffeine solvent; (c) separating the roasted decaffeinated coffee extract from which the caffeine has been transferred from the then caffeine-containing loaded organic caffeine solvent; and (d) drying the roasted decaffeinated coffee extract. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification