Treatment of extracts obtained by split extraction of coffee
US5242700A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1992 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | Sep 29, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23F5/285
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
Roast and ground coffee is extracted by a split extraction process to obtain an extract from an atmospheric stage and an extract from a pressure stage. The extract produced by the atmospheric stage is evaporatively concentrated to a dry matter content of above 35% by weight, and the evaporation vapors produced during evaporative concentration are condensed and concentrated. The extract produced by the pressure stage also is evaporatively concentrated to increase its dry matter concentration to a dry matter concentration below 25% by weight. The two concentrated extracts then are mixed, and that mixture is evaporatively concentrated to a dry matter concentration of more than 40% by weight. The condensed and concentrated vapors obtained from evaporative concentration of the atmospheric stage are introduced into the evaporatively concentrated mixture or into a powder obtained from the concentrated mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.