Countercurrent extraction of coffee
US5190779A · kind A · utility
1Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 26, 1991 |
| Grant date | Mar 2, 1993 |
| Priority date | — |
| Expiry date | Jun 26, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23F5/262
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
To reduce insoluble solids contained in a coffee extract obtained from a countercurrent extraction process, the percolation rate of extraction liquid passing through at least one extraction cell, which is positioned intermediately in the countercurrent cell series between extraction cells containing the least extracted coffee material and the most extracted coffee material, is reduced. The flow of extraction liquid may be increased through an extraction cell in the series downstream from the at least one cell in which the percolation rate is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.