GB877784A - Improved method and means for making a beverage concentrate - Google Patents
Improved method and means for making a beverage concentrateInfo
- Publication number
- GB877784A GB877784A GB228/58A GB22858A GB877784A GB 877784 A GB877784 A GB 877784A GB 228/58 A GB228/58 A GB 228/58A GB 22858 A GB22858 A GB 22858A GB 877784 A GB877784 A GB 877784A
- Authority
- GB
- United Kingdom
- Prior art keywords
- extractor
- extract
- cold
- grounds
- hot
- 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
-
- 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
- A23F5/28—Drying or concentrating coffee extract
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Tea And Coffee (AREA)
Abstract
877,784. Coffee extracts. CURTISS-WRIGHT CORPORATION. Jan. 2, 1958 [June 9, 1957], No. 228/58. Class 129. Coffee extract is prepared by subjecting roasted ground coffee to an initial extraction step with a cold medium to obtain a first liquid extract and subjecting the partially extracted grounds to a second extraction step with a hot medium to obtain a second liquid extract, at least one of the extractions being carried out in the presence of ultrasonic vibrations. The two extracts may be combined in dried form or in liquid form and then dried. The process is carried out by means of one or more extractors comprising a cylindrical chamber having inlet and outlet ports for coffee grounds and for liquid, a helical conveyer for moving the grounds through the chamber and transducers mounted on the conveyer for subjecting the grounds to insonation. As shown in Fig. 1, ground roasted coffee is fed from a source 50 to an ultrasonic extractor 51 where it is extracted by cold water, the resulting liquid being fed to a clarifier 53 and thence to a drier 56 which may be of the cold temperature type. The extractor 51 may be of the batch, continuous, concurrent or countercurrent type. The grounds from extractor 51 are extracted by hot water in extractor 60 and the extract, after clarification and drying, is mixed in a blender 58 with the first extract and the mixture is then packaged. A centrifugal separator may be provided between the cold extractor and clarifier 53 and the sediment therefrom is fed to hot extractor 60. Hot extraction cells may be charged with alternate layers of grounds and slush ice or with a mixture of grounds and ice. A counter-current extraction system may be set up for cold extraction. The extract may be concentrated by freezing, slushing or vacuum concentration of the hot extract. In a modification of the process shown in Fig. 1, the hot extract may be cooled, e.g. in a tubular heat exchanger, and mixed with the cold extract after which the mixture is dried and packaged. In a further modification the extractor 60 is replaced by an ultrasonic hot extractor and the dryer 56 by an ultrasonic cold temperature dryer. The process shown in Fig. 7 is broadly similar to that of Fig. 1, but the cold extract is passed through a heat exchanger 91 where it is heated and then cooled before passing to a further cooler 95 and thence to clarifier 96 and dryer 98 for completion of the process as before. The clarifier may be arranged before the heat exchanger. In a modification of the process shown in Fig. 7, the cold extract is passed first to a clarifier and then to a slush freezer and an ice crystal separator from which the crystals are returned to the ultrasonic cold extractor. The extract is then passed on to the cold temperature dryer. Several qualities of coffee may be blended as in Fig. 9, some roasted grounds of one type being subjected to hot extraction with ground coffee of another type together with partially extracted grounds of the first type and yet another type, the extracts from two ultrasonic cold extractors and from the hot extractor being separately clarified and dried and then blended as before. Ultrasonic equipment may be used in any of the steps. Fig. 4 shows an ultrasonic extractor of the counter-current type comprising a cylinder 171 containing a hollow screw conveyer driven by a belt 188 for carrying ground coffee upwardly from an inlet 177 to an outlet 178 while extracting liquid passes from an inlet 195 to a screened outlet 206. Transducers 215 and 215A are located respectively on the screw 184 and its shaft 183, both of which are hollow for the passage of a heat exchanging agent or liquid, and further transducers 224A are disposed about the cylinder within a jacket 217 through which coolant, e.g. brine or water, may be passed. The transducers 215 are connected to a power source by cable 216 and slip rings 210, 211 on shaft 183, and transducers 224A are connected, to a similar source by cables 223, 224. In modifications, Figs. 13 and 14 (not shown), the hollow shaft of the extractor has an enlarged hollow portion in the vicinity of the transducers or the shaft may be uniformly enlarged throughout, the depth of the screw at the enlargement being consequently reduced.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US877784XA | 1957-01-09 | 1957-01-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB877784A true GB877784A (en) | 1961-09-20 |
Family
ID=22207190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB228/58A Expired GB877784A (en) | 1957-01-09 | 1958-01-02 | Improved method and means for making a beverage concentrate |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB877784A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011022938A1 (en) * | 2009-08-28 | 2011-03-03 | 新奥科技发展有限公司 | Continuous extracting system for material to be processed and method thereof |
CN102422959A (en) * | 2011-11-24 | 2012-04-25 | 昆明理工大学 | Method for preparing instant coffee by ultrasonic-assisted extraction |
CN109758784A (en) * | 2019-03-20 | 2019-05-17 | 河北鑫民和医药科技开发有限责任公司 | A kind of new type of continuous traditional Chinese medicine extraction enrichment facility |
CN115500420A (en) * | 2022-09-22 | 2022-12-23 | 福建拓天生物科技有限公司 | Processing technology of freeze-dried coffee product |
-
1958
- 1958-01-02 GB GB228/58A patent/GB877784A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011022938A1 (en) * | 2009-08-28 | 2011-03-03 | 新奥科技发展有限公司 | Continuous extracting system for material to be processed and method thereof |
CN101991970B (en) * | 2009-08-28 | 2013-06-19 | 新奥科技发展有限公司 | Continuous material extraction system and method |
US9333441B2 (en) | 2009-08-28 | 2016-05-10 | Enn Science & Technology Development Co., Ltd. | System and method for continuous extraction of material |
CN102422959A (en) * | 2011-11-24 | 2012-04-25 | 昆明理工大学 | Method for preparing instant coffee by ultrasonic-assisted extraction |
CN109758784A (en) * | 2019-03-20 | 2019-05-17 | 河北鑫民和医药科技开发有限责任公司 | A kind of new type of continuous traditional Chinese medicine extraction enrichment facility |
CN109758784B (en) * | 2019-03-20 | 2024-04-26 | 河北鑫民和医药科技开发有限责任公司 | Continuous traditional chinese medicine draws enrichment facility |
CN115500420A (en) * | 2022-09-22 | 2022-12-23 | 福建拓天生物科技有限公司 | Processing technology of freeze-dried coffee product |
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