NO741912L - - Google Patents
Info
- Publication number
- NO741912L NO741912L NO741912A NO741912A NO741912L NO 741912 L NO741912 L NO 741912L NO 741912 A NO741912 A NO 741912A NO 741912 A NO741912 A NO 741912A NO 741912 L NO741912 L NO 741912L
- Authority
- NO
- Norway
- Prior art keywords
- coffee
- coffee beans
- cold
- application according
- goods
- Prior art date
Links
- 241000533293 Sesbania emerus Species 0.000 claims description 14
- 238000000227 grinding Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 8
- 238000007670 refining Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000010422 painting Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000008216 herbs Nutrition 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
- B02C19/186—Use of cold or heat for disintegrating
-
- 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
- A23F5/08—Methods of grinding coffee
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J42/00—Coffee mills; Spice mills
- A47J42/38—Parts or details
- A47J42/54—Cooling
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Tea And Coffee (AREA)
- Beans For Foods Or Fodder (AREA)
- Crushing And Grinding (AREA)
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
- Disintegrating Or Milling (AREA)
Description
Anvendelse av en fremgangsmåte vedApplication of a method by
kald-finde1 ing på maling av kaffebonnercold-finding on painting coffee beans
.Foreliggende oppfinnelse vedrbrer en anvendelse av en fremgangsmåte ved kald-finde1 ing av stoffer som ved omgivelsenes temperatur ikke eller bare vanskelig lar seg findele, på maling av kaffebonner. The present invention relates to the application of a method for cold-refining of substances which at the ambient temperature cannot or can only be crushed with difficulty, to the painting of coffee beans.
Maling av kaffebonner skjer vanligvis ved omgivelsenes temperatur i dertil egnde kverner, som f.eks. en stiftkvern. Da malegodset varmer seg opp under maleprosessenmåman ofte regne med termiske skader på rna 1eproduktet , som er forbundet med tap eller ugunstige forandringer av kaffens smakssto f fer. Som folge av den sterke oppvarmning og e11er f ermenter ingen av kaffen oppstår der i tillegg hertil en avgivelse av CC^ fra ka f fepu1 ve ret som kan fore til bomba r de r inger av ka f feboksene. Dessuten kommer.det også ved forholdsvis små gjennomgangsmengder til forskyvninger av de i kvernen innbygde siler og dermed til gjentatte avbrytelser av male-prosessen. Coffee beans are usually ground at ambient temperature in suitable grinders, such as a pin grinder. As the ground material heats up during the grinding process, thermal damage to the core product must often be expected, which is associated with loss or unfavorable changes in the coffee's flavoring substances. As a result of the strong heating and fermentation of none of the coffee, there is also a release of CC^ from the coffee maker which can lead to bombardment of the coffee cans. In addition, with relatively small amounts of passage, displacements of the sieves built into the mill occur and thus repeated interruptions of the grinding process.
Hensikten med oppfinnelsen er å unngå disse ulemper ved maling av kaffebonner og særlig oppnå en stbrre gjennomgangsmengde i forbindelse med en bedre kvalitet av maleproduktet, hvilken opp-gave loses ved at der anvendes en fremgangsmåte ved kald-finde1 ing, ved hvilken det gods som skal findeles, transporteres gjennom finde1 ingsinnretningen ved hjelp av en gasstrdm som fores i et kretslop, og kjolingen skjer i tvangsmotstrdm til godsets bevegelsesretning foran f i nd e 1 i ng s i n nr e t n i ng e n ved hjelp av en annen gasstrbrn, anvendt på maiing av kaffebonner, The purpose of the invention is to avoid these disadvantages when grinding coffee beans and in particular to achieve a greater throughput in connection with a better quality of the grinding product, which task is solved by using a method of cold-finding, in which the goods to be crushed, transported through the fining device using a gas stream that is fed in a circuit, and the cooling takes place in a forced countercurrent to the direction of movement of the goods in front of the fining device in the nr e t n ing with the help of another gas stream, used for milling coffee beans,
Denne i og for seg kjente fremgangsmåte (se tysk utleg-ningsskrift 1 778 559) har hittil forst og fremst funnet anvendelse i forbindelse med sådanne stoffer som ved omgivelsenes temperatur ikke eller bare med vanskelighet lar seg findele, så som faste, seige, seigelastiske, plastiske såvel som termoplastiske stoffer, for å nedsette stoffenes ved stigende temperatur tiltagende seig het, henholdsvis gjore dem såvidt sprd at en findeling i Snsket grad er mulig. Kaffebonner lar seg riktignok male ved normal temperatur, f.eks. ved hjelp av en vanlig kaffekvern. Det har imidlertid overraskende vist seg at en kald-maling av kaffebonner foretatt ved den nevnte i o?g for seg kjente fremgangsmåte, forer med seg uventede fordeler. This method known in and of itself (see German specification 1 778 559) has so far primarily found application in connection with such substances which at the ambient temperature cannot or only with difficulty be finely divided, such as solid, tough, viscoelastic, plastic as well as thermoplastic substances, in order to reduce the increasing toughness of the substances as the temperature rises, or to make them spreadable enough that a fine division to the desired degree is possible. Coffee beans can of course be ground at normal temperature, e.g. using a regular coffee grinder. However, it has surprisingly turned out that a cold-painting of coffee beans carried out by the method mentioned and also known per se, brings with it unexpected advantages.
Således kan mengden av kaffebonner somkan.males pr. tidsenhet ved en kald-maling, bkes og et bedre produkt oppnås, hvilket Thus, the amount of coffee beans that can be ground per unit of time with a cold paint, bkes and a better product is obtained, which
på sin side forer til et hbyere utbytte ved fremstilling av kaffe-ekstrakt. Da den oppvarming av kaf f ebdnnene som hittil nbdvendig/i s finner sted under rna 1eprosessen , unngås, har man ikke kunnet fastslå uheldige virkninger på kaffens smaksstoffer. in turn leads to a higher yield when producing coffee extract. As the heating of the coffee grounds, which until now has necessarily taken place during the roasting process, is avoided, it has not been possible to determine any adverse effects on the coffee's flavourings.
I tillegg hertil viser ka Id-rna 1 i ngen seg særlig gunstig på retensjonen av de forholdsvis 1e11-f 1yktige stoffer som inne-holdes i kaffen. Den betydelig bkede retensjon av disse andeler bidrar i vesentlig grad til at den nybrente kaffe får en hby aroma og at denne aroma i bedre grad gjor seg gjeldende. In addition to this, ka Id-rna 1 in ng proves to be particularly favorable for the retention of the relatively 1e11-f 1moist substances contained in the coffee. The significantly baked retention of these proportions contributes significantly to the newly roasted coffee having a strong aroma and to this aroma being more pronounced.
I henhold til en fordelaktig videreutvikling av oppfinnelsen anvendes der for findeling en slagkver ri (p rall kvern) med inn--stillbart turtall. Turtallet innstilles i avhengighet av kvern-typen og k ve r n s t b r r e. 1 s e n , således at der oppnås en jevnere korn-fordeling og samtidig en optimal korndiameter , hvilket bevirker at According to an advantageous further development of the invention, an impact mill (prall mill) with an adjustable speed is used for comminution. The speed is set depending on the type of grinder and the type of grinder.
de sraakstoffer som bibeholdes, kan utfolde sin aroma fullt ut.the herbs that are retained can unfold their aroma fully.
* ■ * ■
Ennvidere har det når det gjelder dkningen av malemengden pr. tidsenhet og forbedringen av kaffens aroma vist seg særlig gunstig å foreta kald-findelingen ved temperaturer under 250° K, fortrinnsvis i området mellom 150 og 190 K, da disse temperaturer selv ved en stor malemengde pr. tidsenhet lar seg oppnå ved etdkonomisk rimelig energiforbruk. Furthermore, when it comes to the coverage of the amount of paint per unit of time and the improvement of the coffee's aroma proved particularly beneficial to carry out the cold refining at temperatures below 250° K, preferably in the range between 150 and 190 K, as these temperatures even with a large amount of ground per unit of time can be achieved through economically reasonable energy consumption.
For å oppnå en jevnest mulig kornstbrrelse kan det dertil være hensiktsmessig for findelingen å foreta en for-finde1 ing. In order to achieve the most uniform grain size possible, it may also be appropriate for the fining division to carry out a pre-fining.
Ved den beskrevne anvendelse av en fremgangsmåte ved kald-findeling på maling av kaffebonner er det fordelaktig å an-vende en inert gass, f.eks. nitrogen, til kjbling. Derved blir hele kvernanlegget inertisert under driften og faren for branner, som foreligger ved konvensjonell maling av kaffebonner, unngås. Dessuten hindres en oksydasjon av de fettholdige a r oma s t o f fe r, som ved de hittil vanlige temperaturer ved maling av kaffe er meget forstyrrende på grunn av malegodsets store overflate. In the described application of a method of cold-finishing on grinding coffee beans, it is advantageous to use an inert gas, e.g. nitrogen, for cooling. Thereby, the entire grinding system is inertized during operation and the danger of fires, which exists with conventional grinding of coffee beans, is avoided. In addition, oxidation of the fatty aromatic substances is prevented, which at the hitherto usual temperatures when grinding coffee is very disruptive due to the large surface of the ground material.
Ved et forsdksprogram for utprbvning av anvendelsen i folge oppfinnelsen ble 30 kg kaffebonner så finmalt som mulig. 25 kg kaffebonner ble malt ved en temperatur på 153°K og 5 kg ved. romtemperatur. I. begge tilfelle ble der anvendt en vanlig stiftk^ern med et turtall på 14 000 omdr./min. In a research program for testing the application according to the invention, 30 kg of coffee beans were ground as finely as possible. 25 kg of coffee beans were ground at a temperature of 153°K and 5 kg of wood. room temperature. In both cases, a normal pin core with a speed of 14,000 rpm was used.
Ved ka 1d-ma1 ingen var mengden pr. tidsenhet 30 kg/h, mens den ved romtemperatur bare var 10 kg/.h. At ka 1d-ma1 none was the quantity per time unit 30 kg/h, while at room temperature it was only 10 kg/.h.
Fblgende tabell viser en sikit.a na lyse av maleproduktet i henhold til Rosin-Rammler-Sper 1 ing (RRS) : The following table shows a detailed analysis of the paint product according to Rosin-Rammler-Sper 1 ing (RRS):
Som det fremgår av denne tabell oppnås der ved kald-maling sammenlignet med maling ved romtemperatur, en totalt sett mindre kornstbrrelse og samtidig en mindre kornstbrrelsespredning. Dette bevirker en bkning av malegodsets overflate og derved at den malte kaffe får en rikere aroma. As can be seen from this table, when cold painting is compared to painting at room temperature, an overall smaller grain size and at the same time a smaller grain size spread is achieved. This causes a bending of the surface of the ground material and thereby the ground coffee acquires a richer aroma.
4 4
Ved et annet forsdk ble 6 kg for-finmalte kaffebonner i form av grovkornet kaffepulver utsatt for en .kald-ma 1 ing ved en temperatur på 153° K, Der ble anvendt en stiftkvern av samme type. Mengden av malt gods pr. tidsenhet var 20 kg/h. In another trial, 6 kg of pre-finely ground coffee beans in the form of coarse-grained coffee powder were exposed to cold grinding at a temperature of 153° K. A pin grinder of the same type was used. The amount of ground goods per time unit was 20 kg/h.
En sikt.'apa 1 yse for og etter kald-findelingen ga fblgende A search.'apa 1 yse before and after the cold-finding gave the following
bilde:picture:
Ennvidere oppnåddes etter kald-malingen en meget liten kornstbrrelse på 0,17 mm, mens jevnhetskoe f f isienten sammenlignet med kald-maling uten for - f inde1 ing ble bket betraktelig fra 1,86 til 2,41. Furthermore, after cold painting, a very small grain size of 0.17 mm was achieved, while the coefficient of uniformity of the efficiency compared to cold painting without pre-finishing was considerably increased from 1.86 to 2.41.
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732334718 DE2334718A1 (en) | 1973-07-07 | 1973-07-07 | APPLICATION OF A COLD CRUSHING PROCESS TO GRINDING COFFEE BEANS |
Publications (1)
Publication Number | Publication Date |
---|---|
NO741912L true NO741912L (en) | 1975-02-03 |
Family
ID=5886298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO741912A NO741912L (en) | 1973-07-07 | 1974-05-27 |
Country Status (11)
Country | Link |
---|---|
AT (1) | AT336985B (en) |
BE (1) | BE813828A (en) |
BR (1) | BR7404104A (en) |
CH (1) | CH579949A5 (en) |
DE (1) | DE2334718A1 (en) |
DK (1) | DK679073A (en) |
ES (1) | ES427637A1 (en) |
FR (1) | FR2235737A1 (en) |
NL (1) | NL7316930A (en) |
NO (1) | NO741912L (en) |
ZA (1) | ZA742672B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0554650A1 (en) * | 1992-02-04 | 1993-08-11 | The Procter & Gamble Company | Use of fine - ground coffee |
-
1973
- 1973-07-07 DE DE19732334718 patent/DE2334718A1/en active Pending
- 1973-12-11 NL NL7316930A patent/NL7316930A/en not_active Application Discontinuation
- 1973-12-14 DK DK679073A patent/DK679073A/da unknown
-
1974
- 1974-03-18 CH CH371974A patent/CH579949A5/xx not_active IP Right Cessation
- 1974-04-04 AT AT283974A patent/AT336985B/en not_active IP Right Cessation
- 1974-04-17 BE BE143296A patent/BE813828A/en unknown
- 1974-04-26 ZA ZA00742672A patent/ZA742672B/en unknown
- 1974-05-20 BR BR4104/74A patent/BR7404104A/en unknown
- 1974-05-21 FR FR7417674A patent/FR2235737A1/en active Granted
- 1974-05-27 NO NO741912A patent/NO741912L/no unknown
- 1974-06-25 ES ES427637A patent/ES427637A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BR7404104D0 (en) | 1975-09-09 |
DE2334718A1 (en) | 1975-01-23 |
CH579949A5 (en) | 1976-09-30 |
FR2235737B3 (en) | 1978-05-12 |
ES427637A1 (en) | 1976-08-01 |
FR2235737A1 (en) | 1975-01-31 |
ATA283974A (en) | 1976-09-15 |
AT336985B (en) | 1977-06-10 |
DK679073A (en) | 1975-02-24 |
BE813828A (en) | 1974-08-16 |
BR7404104A (en) | 1976-01-27 |
ZA742672B (en) | 1975-04-30 |
NL7316930A (en) | 1975-01-09 |
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