JPH02107158A - Method for pulverizing coffee bean - Google Patents
Method for pulverizing coffee beanInfo
- Publication number
- JPH02107158A JPH02107158A JP26031588A JP26031588A JPH02107158A JP H02107158 A JPH02107158 A JP H02107158A JP 26031588 A JP26031588 A JP 26031588A JP 26031588 A JP26031588 A JP 26031588A JP H02107158 A JPH02107158 A JP H02107158A
- Authority
- JP
- Japan
- Prior art keywords
- coffee beans
- grinding
- sample
- moisture content
- endocarp
- 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.)
- Pending
Links
- 241000533293 Sesbania emerus Species 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 9
- 238000010298 pulverizing process Methods 0.000 title abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 3
- 238000000227 grinding Methods 0.000 claims description 12
- 239000002245 particle Substances 0.000 abstract description 4
- RYYVLZVUVIJVGH-UHFFFAOYSA-N caffeine Chemical compound CN1C(=O)N(C)C(=O)C2=C1N=CN2C RYYVLZVUVIJVGH-UHFFFAOYSA-N 0.000 description 4
- 244000013123 dwarf bean Species 0.000 description 4
- 235000021331 green beans Nutrition 0.000 description 4
- LPHGQDQBBGAPDZ-UHFFFAOYSA-N Isocaffeine Natural products CN1C(=O)N(C)C(=O)C2=C1N(C)C=N2 LPHGQDQBBGAPDZ-UHFFFAOYSA-N 0.000 description 2
- 229960001948 caffeine Drugs 0.000 description 2
- VJEONQKOZGKCAK-UHFFFAOYSA-N caffeine Natural products CN1C(=O)N(C)C(=O)C2=C1C=CN2C VJEONQKOZGKCAK-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
- Tea And Coffee (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はコーヒー豆の粉砕方法であって、特にコーヒー
生豆の晶質ｈ１測のための試料粉砕に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for grinding coffee beans, and particularly to sample grinding for measuring the crystallinity h1 of green coffee beans.
コーヒーの品質を測定する方法としては従来、焙煎の後
コーヒー豆を粉砕してから沸かして飲／υで判定する官
能試験によることが知られている。また、焙煎した豆か
らカフェインを抽出して、カフェインの含有量を化学的
に計測することも行われているが、これはコーヒーの品
質そのものを計測するものではない。Conventionally, a known method for measuring the quality of coffee is to use a sensory test in which roasted coffee beans are ground, boiled, and judged by drinkability/υ. Caffeine is also extracted from roasted beans and the caffeine content is chemically measured, but this does not measure the quality of the coffee itself.
まして、生豆の段階での計測は試みられていないのが現
状である。本発明は生豆の段階でコーヒーの品質を測定
するための原料を粉砕する方法である。Moreover, at present, no attempt has been made to measure it at the stage of green beans. The present invention is a method of grinding raw materials for measuring the quality of coffee at the green coffee stage.
コーヒーの果実は御名チエリーと呼ばれ外側に肉質の外
皮があり、内側に果肉、更に内果皮と根皮があり、最も
中心部に胚乳がある。商取引として生豆で一般に流通す
る状態は内果皮と根皮の幾部が除去されたものであり、
含有水分が１３〜１５％である。この状態のコーヒー生
豆は粘弾性が強く、ロール式粉砕機、遠心粉砕機を用い
ても均一な粉砕がひきない。The coffee fruit is called Thierry and has a fleshy outer skin, a pulp inside, an endocarp and a root bark, and an endosperm in the center. The state in which green beans are generally distributed in commercial transactions is one in which some of the endocarp and root bark have been removed.
The water content is 13 to 15%. Green coffee beans in this state have strong viscoelasticity and cannot be ground uniformly even with a roll-type grinder or centrifugal grinder.
本発明は一般に流通している］−ヒー生豆の品質を測定
するために均一に粉砕し、コーヒー生豆の持つ品質に影
響を及ぼす成分や化学構造等をより正確に測定できる試
料を提供することを目的とする。The present invention is generally available] - To measure the quality of green coffee beans, it is ground uniformly to provide a sample that can more accurately measure the components, chemical structure, etc. that affect the quality of green coffee beans. The purpose is to
上記目的を達成するために請求項（１）の発明は、内果
皮を除去したコーヒー生豆を含水率１０％以下に乾燥し
たあと該コーヒー生豆を粉砕するようになし、また、請
求項（２）に記載の発明は内果皮を除去したコーヒー生
豆を含水率１０％以下に乾燥した後粗粉砕し、さらにそ
の後微粉砕する方法となした。In order to achieve the above object, the invention of claim (1) is such that the green coffee beans from which the endocarp has been removed are dried to a moisture content of 10% or less, and then the green coffee beans are ground. The invention described in 2) is a method in which green coffee beans from which the endocarp has been removed are dried to a moisture content of 10% or less, coarsely pulverized, and then finely pulverized.
（作 用）
コーヒー生豆を含水率１０％以下に乾燥し、全体が脆く
なった生豆を粉砕機を用いて粉砕して粉砕試料を作成す
る。また、前記粉砕する工程を複数回とし、前段工程で
粗粉砕し後段工程で微粉砕する。(Function) Green coffee beans are dried to a moisture content of 10% or less, and the green beans, which have become brittle as a whole, are ground using a grinder to create a ground sample. Further, the pulverizing step is performed multiple times, with coarse pulverization in the first step and fine pulverization in the second step.
本発明の１実施例を図面により説明する。本発明の生豆
乾燥には一般的に良く知られた通風乾燥機等を使用し、
粉砕機２にはロール式粉砕機、臼式粉砕機が利用される
が、ここでは図に示す微粒子に粉砕する回転衝撃式粉砕
機によって説明する。符号１は粉砕機であり、基台２の
上部に蓋体３を載置し、基台２と蓋体３とは止め具４に
より締着している。粉砕室５に金網６を周設し、金網６
内に電動機７の電動機軸８に直結した翼車９を回転自在
に軸架し、翼車９の略中心上方に供給口１０を設ける。An embodiment of the present invention will be described with reference to the drawings. A generally well-known ventilation dryer or the like is used to dry the green beans of the present invention.
Although a roll type crusher or a mortar type crusher is used as the crusher 2, a rotary impact type crusher for crushing into fine particles as shown in the figure will be explained here. Reference numeral 1 designates a crusher, in which a lid 3 is placed on the top of a base 2, and the base 2 and the lid 3 are fastened together with a fastener 4. A wire mesh 6 is provided around the crushing chamber 5, and the wire mesh 6
A blade wheel 9 directly connected to a motor shaft 8 of an electric motor 7 is mounted rotatably therein, and a supply port 10 is provided approximately above the center of the blade wheel 9.
符号１１は振動供給装置であり、試料タンク１２は支柱
１３により支持している。試料タンク１２の排出口１４
を振動供給路１５に接近して連絡し、振動供給路１５の
給穀端を供給口１０に臨ませ、また符号１６は振動装置
であり、符号１７は貯留室である。The reference numeral 11 is a vibration supply device, and the sample tank 12 is supported by a column 13. Outlet 14 of sample tank 12
is closely connected to the vibrating supply path 15, and the feeding end of the vibrating feed path 15 faces the feed port 10. Reference numeral 16 is a vibrating device, and reference numeral 17 is a storage chamber.
次に上記構成における作用を説明する。乾燥手段により
含水率１０％以下に乾燥されたコーヒー生豆は試料タン
ク１２の排出口１４から振動供給路１５へ供給され、振
動装置１６を作動すると試料は撮動供給路１５の給穀端
から順次供給口１０へ送られる。供給口１０から粉砕室
５へ落下した試料は、粉砕室５において高速で回転する
翼車９により金網６にたたきつけられ、そこで粉々に粉
砕される。粉砕された試料は金網６の通孔から排出され
、貯留室１７において貯留される。そして、止め具４を
緩めて器体３と基台２との締着状態を解放し、蓋体３を
取外して粉砕された試料を取出す。また、１０％以下に
乾燥されたコーヒー生豆でもその物性により回転衝撃式
粉砕機で粉砕をはじめても粉砕効率が悪く生立の温度上
品が高くコーヒー豆に悪影響を与えることもあるので、
初期にロール粉砕機で粗粉砕を終わったものを微粉砕す
ると効率良（粒度の分布が−様な試料を得ることができ
る。Next, the operation of the above configuration will be explained. The green coffee beans, which have been dried to a moisture content of 10% or less by the drying means, are supplied from the discharge port 14 of the sample tank 12 to the vibrating supply path 15, and when the vibrating device 16 is activated, the sample is transported from the feeding end of the photographing supply path 15. It is sequentially sent to the supply port 10. The sample that has fallen into the crushing chamber 5 from the supply port 10 is struck against the wire mesh 6 by the impeller 9 rotating at high speed in the crushing chamber 5, and is crushed there into pieces. The pulverized sample is discharged through the holes in the wire mesh 6 and stored in the storage chamber 17. Then, the stopper 4 is loosened to release the fastened state between the vessel body 3 and the base 2, the lid body 3 is removed, and the crushed sample is taken out. In addition, even if green coffee beans that have been dried to less than 10% are ground using a rotary impact grinder due to their physical properties, the grinding efficiency is poor and the temperature of the raw material is high, which may have a negative effect on the coffee beans.
If the material that has been coarsely pulverized using a roll pulverizer is first pulverized into fine pulverizers, it is possible to obtain a sample with good efficiency (a similar particle size distribution).
〔発明の効果）
コーヒーの生立を粉砕する前工程で該生立を含水率１０
％以下としたので、生豆の状態でコーヒー豆の品質に影
費を及ぼす成分や化学構造を測定するに際し、コーヒー
生豆の粉砕を容易にすると共に均一粒度の試料を得るこ
とができる。[Effect of the invention] In the process before grinding the coffee grounds, the moisture content of the coffee grounds is reduced to 10.
% or less, it is possible to easily grind the green coffee beans and obtain a sample with a uniform particle size when measuring components and chemical structures that affect the quality of the coffee beans in the green coffee beans state.
さらに粉砕工程を粗粉砕と微粉砕との複数工程とすれば
試料の粒度がより均一となる。Furthermore, if the pulverization process is a plurality of steps of coarse pulverization and fine pulverization, the particle size of the sample becomes more uniform.
図面は本発明の実施例を示したフローチャートである。
１・・・＃＃粉砕機、２・・・基台、３・・・蓋体、４
・・・止め具、５・・・粉砕室、６・・・金網、７・・
・電動機、８・・・電動機軸、９・・・翼車、１０・・
・供給口、１１・・・振動供給装置、１２・・・試料タ
ンク、１３・・・支柱、１４・・・排出口、１５・・・
振動供給路、１６・・・振動装置、１７・・・貯留室。
特許出願人 株式会社佐竹製作所The drawing is a flowchart showing an embodiment of the invention. 1... ## Crusher, 2... Base, 3... Lid, 4
... Stopper, 5... Grinding chamber, 6... Wire mesh, 7...
・Electric motor, 8... Motor shaft, 9... Blade wheel, 10...
- Supply port, 11... Vibration supply device, 12... Sample tank, 13... Strut, 14... Discharge port, 15...
Vibration supply path, 16... Vibration device, 17... Storage chamber. Patent applicant: Satake Seisakusho Co., Ltd.
Claims (2)
以下に乾燥した後粉砕することを特徴とするコーヒー豆
の粉砕方法。(1) Green coffee beans with endocarp removed, moisture content 10%
A method for grinding coffee beans, which is characterized by drying and then grinding.
って、前記粉砕が粗粉砕した後微粉砕するものであるコ
ーヒー豆の粉砕方法。(2) The method for grinding coffee beans according to claim (1), wherein the grinding comprises coarsely grinding and then finely grinding.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26031588A JPH02107158A (en) | 1988-10-15 | 1988-10-15 | Method for pulverizing coffee bean |
| IE327189A IE65900B1 (en) | 1988-10-15 | 1989-10-10 | Apparatus for evaluating quality of raw coffee beans |
| DE68921284T DE68921284T2 (en) | 1988-10-15 | 1989-10-11 | Device for evaluating the quality of raw coffee beans. |
| CA002000473A CA2000473C (en) | 1988-10-15 | 1989-10-11 | Apparatus for evaluating quality of raw coffee beans |
| EP89310407A EP0365205B1 (en) | 1988-10-15 | 1989-10-11 | Apparatus for evaluating quality of raw coffee beans |
| BR898905220A BR8905220A (en) | 1988-10-15 | 1989-10-13 | APPARATUS FOR ASSESSING THE QUALITY OF RAW COFFEE GRAINS |
| US07/421,849 US4963743A (en) | 1988-10-15 | 1989-10-16 | Apparatus for evaluating quality of raw coffee beans |
| US07/565,235 US5034609A (en) | 1988-10-15 | 1990-08-10 | Method for evaluating quality of raw coffee beans |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26031588A JPH02107158A (en) | 1988-10-15 | 1988-10-15 | Method for pulverizing coffee bean |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02107158A true JPH02107158A (en) | 1990-04-19 |
Family
ID=17346316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26031588A Pending JPH02107158A (en) | 1988-10-15 | 1988-10-15 | Method for pulverizing coffee bean |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02107158A (en) |
-
1988
- 1988-10-15 JP JP26031588A patent/JPH02107158A/en active Pending
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