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US 3,939,291 AGranted
Grinder gas fixation
AssigneeGeneral Foods Corporation
InventorSaul Norman Katz
Life of this patent
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Abstract
Coffee grinder gas is fixed in a glyceride at relatively high levels by contacting condensed grinder gas frost and the glyceride in a pressure vessel at a temperature which is above the critical temperature of liquid carbon dioxide. The pressure vessel is then slowly vented in order to prevent a drop in temperature to below the critical level.
Claims8
A method for aromatizing soluble coffee with an aromatized glyceride comprising the steps of:
- a. condensing as a frost an aroma-containing gas which has a high carbon dioxide content,
- b. placing the aroma-containing frost in a pressure vessel, the amount of frost being sufficient to provide a saturated carbon dioxide phase within the vessel,
- c. isolating the vessel from the atmosphere,
- d. supplying heat to the the vessel to raise the internal temperature above 87.8.degree.F.,
- e. contacting within said heated vessel the frost aromas and a liquid glyceride phase said glyceride being present in the vessel at a level of about one gram of glyceride to 0.5 to 6 grams of the frost;
- thereafter,
- f. slowly releasing pressure from the vessel in a manner which avoids the formation of liquid carbon dioxide, and then
- g. combining the aroma-bearing glyceride with coffee solids.
5 more elements
Dependencies are inferred from the claim text.