The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 1988
Filed:
Nov. 26, 1986
Ernesto Illy, I-34147 Trieste, IT;
Other;
Abstract
Roasted coffee beans are delivered to an airtight container. The container is purged with CO.sub.2 or N.sub.2 until the O.sub.2 concentration is between 0.2 and 2%. The container is then sealed and the coffee beans are aged under an atmosphere consisting of CO.sub.2 or N.sub.2 with small amounts of O.sub.2. During the aging process, which involves a liberation by the coffee beans of a gas rich in CO.sub.2, the pressure in the container is maintained between 0.4 and 1.8 atmospheres. Aging may take place at temperatures between 20.degree. and 25.degree. C. and, under such circumstances, the O.sub.2 concentration in the container is maintained within the range of 0.2 to 1% throughout the aging period. The aging period at these temperatures is between 15 days and 31 days. Alternatively, aging may take place at temperatures between 30.degree. and 50.degree. C. The O.sub.2 concentration in the container is then maintained within the range of 0.2 to 2% throughout the aging period which is now only 4 to 10 days.