Coffee roasting method
US4737376A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 1986 |
| Grant date | Apr 12, 1988 |
| Priority date | — |
| Expiry date | Aug 6, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23F5/046
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
Coffee is produced by first suspending a bubbling bed thereof under conditions which avoid popping in a heated medium wherein the heating gas is present in excess of 10:1 gas to coffee, the gas being less than 630.degree. F., and thereafter exposing the coffee to a further charge of hot gas at a comparable gas to coffee ratio to complete the roast, the second charge of air being at a temperature equal to or less than the first charge. The roasted coffee which is produced has a roasted whole bean density of from 0.28 to 0.34 gms./cc. When the roasted whole beans are suitably ground, a roasted and ground coffee of 11 to 13.5 oz. per 1000 cc. is produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.