A - Human Necessities – 23 – F
Patent
A - Human Necessities
23
F
99/81
A23F 5/28 (2006.01) A23F 5/20 (2006.01) A23F 5/48 (2006.01)
Patent
CA 1172505
PROCESS FOR PREPARING AROMA- AND FLAVOR-ENRICHED SOLUBLE COFFEE Judith A. Zaunbrecher and Richard G. Crooks Abstract A process for desorbing the volatile aroma and flavor components from roast and ground coffee having a particle size above about 1000 microns is disclosed. The roast and ground coffee particles are mixed with water or ice in a ratio of 0.1 to 0.9 parts of water per part of coffee in a fluidized mechanical mixer. The water/coffee mixture is then contacted with steam under vacuum (temperature of 32° to 125°F, about 5 to 100 mm mercury absolute pressure). The resulting volatiles-laden steam is condensed, preferably in a two-stage operation. The first condenser removes most of the water and a fraction of the volatiles at 32°-125"F, and the remaining volatiles are condensed in a cryogenically cooled trap, preferably at liquid nitrogen temperature. The moisture level of the coffee during devolatilization is from 15% to 65% by weight. The devolatilized roast and ground coffee can then be used in a conventional extraction column. The draw-off ratio of extract to column charge is from about 2.3 to about 3.2. This produces a coffee extract having from 13% to about 26% solids. The extract and the coffee-volatiles condensates provide the components of an improved highly aromatic and flavorful instant coffee.
380693
Crooks Richard G.
Zaunbrecher Judith A.
Gowling Lafleur Henderson Llp
The Procter & Gamble Company
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