GB979531A - A process for extracting ground roasted coffee - Google Patents
A process for extracting ground roasted coffeeInfo
- Publication number
- GB979531A GB979531A GB826062A GB826062A GB979531A GB 979531 A GB979531 A GB 979531A GB 826062 A GB826062 A GB 826062A GB 826062 A GB826062 A GB 826062A GB 979531 A GB979531 A GB 979531A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coffee
- vessels
- ground
- air
- vessel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0203—Solvent extraction of solids with a supercritical fluid
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F5/00—Coffee; Coffee substitutes; Preparations thereof
- A23F5/24—Extraction of coffee; Coffee extracts; Making instant coffee
- A23F5/26—Extraction of water-soluble constituents
- A23F5/262—Extraction of water-soluble constituents the extraction liquid flows through a stationary bed of solid substances, e.g. in percolation columns
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Tea And Coffee (AREA)
Abstract
A process for the counter-current extraction of ground roasted coffee with water comprises moistening the coffee under an atmosphere of gas inert to the soluble coffee matter a pressure higher than the escape pressure of the gases contained in the dry coffee and extracting the coffee at the same pressure. Roasted coffee is poured into a bunker from which air is expelled by introducing carbon dioxide at the bottom. The coffee is then passed to and ground in an air-sealed mill and the ground coffee transferred by a screwconveyer in an air-tight conduit to one of a series of extraction vessels, the vessel being pressurized with carbon dioxide from a buffer vessel. Fresh water under pressure is passed via a measuring pump, through a steam heated heat exchanger to raise its temperature to 160 DEG C., and into the extraction vessel containing the most exhausted coffee. The first extract so produced is then passed in turn through other vessels containing partially exhausted coffee and finally into the vessel containing the freshly ground coffee. The temperature of the extracting liquid drops gradually from 160 DEG C. to 80 DEG C. as it passes through the series of vessels, temperature corrections, where necessary, being effected by means of heat exchangers sited in the conduits connecting the vessels.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL261958 | 1961-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB979531A true GB979531A (en) | 1965-01-06 |
Family
ID=19752908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB826062A Expired GB979531A (en) | 1961-03-03 | 1962-03-02 | A process for extracting ground roasted coffee |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH411549A (en) |
| DE (1) | DE1492736A1 (en) |
| GB (1) | GB979531A (en) |
| LU (1) | LU41310A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3482987A (en) * | 1966-08-10 | 1969-12-09 | Gen Foods Corp | Removing deleterious volatiles from coffee |
| US3492126A (en) * | 1966-11-09 | 1970-01-27 | Maryland Cup Corp | Soft-frozen whipped aqueous extract concentrate of coffee or tea |
| CN104645663A (en) * | 2015-03-12 | 2015-05-27 | 浙江天草生物科技股份有限公司 | Heat exchange type continuous plant extraction system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2844781A1 (en) * | 1978-10-13 | 1980-04-24 | Hag Ag | METHOD FOR EXTRACTIVE PROCESSING OF VEGETABLE AND ANIMAL MATERIALS |
| DE3736322A1 (en) * | 1987-10-27 | 1989-05-11 | Jacobs Suchard Gmbh | METHOD FOR CAREFULLY DECAFFINATING RAW COFFEE |
-
1962
- 1962-02-28 LU LU41310D patent/LU41310A1/xx unknown
- 1962-02-28 DE DE19621492736 patent/DE1492736A1/en not_active Withdrawn
- 1962-03-02 GB GB826062A patent/GB979531A/en not_active Expired
- 1962-03-02 CH CH258962A patent/CH411549A/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3482987A (en) * | 1966-08-10 | 1969-12-09 | Gen Foods Corp | Removing deleterious volatiles from coffee |
| US3492126A (en) * | 1966-11-09 | 1970-01-27 | Maryland Cup Corp | Soft-frozen whipped aqueous extract concentrate of coffee or tea |
| CN104645663A (en) * | 2015-03-12 | 2015-05-27 | 浙江天草生物科技股份有限公司 | Heat exchange type continuous plant extraction system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1492736A1 (en) | 1969-02-13 |
| CH411549A (en) | 1966-04-15 |
| LU41310A1 (en) | 1963-08-28 |
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