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US 4,552,767 AGranted
Method of packaging coffee with carbon dioxide sorbent
AssigneeGeneral Foods Corporation
InventorsFouad Z. Saleeb, Bary L. Zeller
Life of this patent
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Abstract
A carbon dioxide sorbent is disclosed which comprises calcium hydroxide at a level of from 70 to 95% by weight based upon the total dry weight of the sorbent, sodium hydroxide, potassium hydroxide or admixture thereof at a level of from 5 to 15% by weight, optionally calcium chloride at a level of from 5 to 15% by weight and less than 1.5% moisture. Also disclosed is a method for packaging coffee utilizing the carbon dioxide sorbent.
Claims10
A process for packaging roasted coffee which comprises:
- packaging said coffee in a container by either backflushing roasted coffee in a container with nitrogen or vacuum packaging roasted coffee to remove substantially all of the oxygen present therein;
- adding to said container containing said coffee a carbon dioxide sorbent, said carbon dioxide sorbent comprising calcium hydroxide at a level of from 70 to 95% by weight based upon the total dry weight of the sorbent and sodium hydroxide, potassium hydroxide or admixture thereof at a level of from 5 to 15% by weight based upon the total dry weight of the sorbent and 1.5% or less water by weight said sorbent being prepared by dry-blending the calcium hydroxide with the sodium hydroxide, potassium hydroxide or admixture to produce a free-flowing material containing sorbent particles less than 1 mm.
Dependencies are inferred from the claim text.