KR101641909B1

KR101641909B1 - Dutch coffee beans

Info

Publication number: KR101641909B1
Application number: KR1020150032388A
Authority: KR
Inventors: 신성균
Original assignee: 주식회사 원더치; 신성균
Priority date: 2015-03-09
Filing date: 2015-03-09
Publication date: 2016-07-22

Abstract

The present invention relates to a method and an apparatus of extracting cold brew, and more particularly, to a method and an apparatus of extracting cold brew in which cold brew with a constant concentration and a constant flavor is always extracted by accurately and repeatedly controlling the rate and amount of extracting cold brew at predetermined intervals for each step during a predetermined time to be capable of providing a smooth taste and a rich flavor. The present invention extracts cold brew in a method of controlling an one-extractable amount by setting an opening time of a valve installed between a water tank and a filtration vessel, controlling an extraction rate by setting an interval of the valve opening, and mechanically controlling a total extraction rate by setting a repeating opening and closing time of the valve.

Description

METHOD AND APPARATUS FOR DELICIOUS COFFEE {DUTCH COFFEE BEANS}

More particularly, the present invention relates to a method and apparatus for extracting coffee from a coffee, and more particularly, it relates to a method and apparatus for extracting coffee from coffee, The present invention relates to a method and apparatus for extracting coffee from a Dutch coffee.

Generally, espresso is popularly used as a drip coffee, which is roasted and crushed, put in a fryer, poured hot water thereon, or hot pressed into a finely ground bean powder.

In recent years, the number of lovers who prefer to use coffee, which is extracted from coffee or hot water for 3 to 24 hours over a long period of time, is increasing.

In addition, since the extracted extract is aged over time and has a more unique taste and aroma and is extracted using water at room temperature, the content of caffeine is lower than that of drip coffee or espresso coffee extracted from water at a high temperature It has a deep and soft taste.

In addition, since it can be stored for a long time and the flavor and taste of coffee that is blown away by hot water can be extracted as it is, there is a characteristic that it can feel the subtle taste that is not felt in hot coffee such as a rich aroma of coffee and bitter, .

However, the conventional Dutch coffee extracting device controls the speed and amount of the extracted hot coffee using the valve, but the user manually opens and closes the valve manually.

In order to adjust the extraction speed and amount after opening the valve, the valve is finely adjusted to adjust the amount and the speed. However, since the Dutch coffee is extracted for a long time, It is common to extract by speed and amount.

Therefore, there is a problem that the taste and flavor of the crude coffee extract is deteriorated and the quality is deteriorated due to the inability to regulate the speed at which the extract liquid is extracted while passing through the inside of the filtration container. In addition, Which may result in a decrease in product production.

Further, the conventional extracting apparatus for extracting the Dutch coffee is pulverized in the process of falling water into the filtration container containing the ground coffee powder in the water tank, so that the water does not fall over the whole of the ground coffee powder, Water may not reach the coffee grounds around the container, so that the hot coffee can not be properly extracted at a certain concentration and may be extracted at a low concentration.

In addition, in order to prevent water from being fed only to the central portion of the filtration vessel, the user may have to stop continuously feeding the Dutch coffee and shake the coffee powder contained in the filtration vessel to change the position of the coffee powder If the extraction of coffee is continuously stopped, the quality of extracted coffee may be deteriorated.

In addition, the Dutch coffee extractor has a single filtration vessel at the bottom of the water tank, one extraction vessel at the bottom of one filtration vessel, and a large amount of coffee at a time It is generally impossible to extract it.

Thus, since the amount of extracting the Dutch coffee within a certain time is limited, a problem can arise in that a large amount of Dutch coffee can not be provided to consumers.

In addition, in order to extract a large amount of Dutch coffee, a large amount of a Dutch coffee extracting device must be provided, which may cause a problem of a large expenditure for purchasing a Dutch coffee extracting device.

In addition, the touch coffee extract is extracted for a long time by the water supplied at room temperature. Since the water is supplied to the water tank at 3-7 ° C, the temperature of the water contained in the water tank and the temperature difference The temperature of the surface of the water tank falls below the dew point, so that moisture in the air contacts with the cold surface of the water tank, thereby causing condensation.

In particular, there is a problem that in the hot summer when drinking a lot of Dutch coffee, the difference in the temperature of the water inside the water tank and the temperature of the room inside the water tank becomes extreme, and consequently, the surface of the water tank becomes more dewy.

Patent No. 10-1392192 Registration Utility Model No. 20-0470316

An object of the present invention is to provide an apparatus and a method for controlling an extraction rate by controlling the extraction amount by setting a time for maintaining the opening of a valve installed between a water tank and a filtration vessel, A step of mechanically controlling the total extraction speed by setting a time for repeating the extraction of the coffee beans, wherein the extraction step comprises the steps of: And an extracting step of continuously extracting coffee after the calling step, wherein the valve opening interval, the time for which the valve is kept open, and the total time for which the valve is opened and closed are set for each step, The valve opening interval is set to 10 minutes to 90 minutes, the valve opening time from the valve opening time is set to 1 second to 10 seconds, and the total time for repeated valve opening and closing is set to 10 minutes To 2 hours. In the extraction step, the valve opening interval is set to 1 second to 10 seconds, the valve opening time from the valve opening time is set to 0.01 second to 1 second, and the total time Is set to 2 to 24 hours.

And a concentration adjusting step of adjusting the concentration of the coffee after the extracting of the coffee after the extraction step, wherein the concentration adjusting step sets the valve opening interval to 1 to 10 seconds, Is set to 1 second to 10 seconds, and the total time during which the valve is opened and closed is set to 10 minutes to 2 hours.

In addition, in the case of the Dutch coffee extracting step, 12-23% is extracted in the step of roasting, 70-85% is extracted in the extraction step, and 3-5% is extracted in the concentration controlling step based on 100% Is extracted.

In order to achieve the object, the present invention provides a Dutch coffee extracting apparatus operated by regulating a valve bag interval, a valve opening time, and a total time for repeated valve opening and closing in the calling step, the extracting step, An upper body frame; A lower main body frame formed to be shorter than a width of the upper main body frame at a lower portion of the upper main body frame; A side frame connecting the upper main body frame and the lower main body frame; A water tank located inside the upper body frame and having a lid on the upper part to store water therein; A filtration vessel located on both sides of the lower body frame and connected to the water tank by a nozzle to receive water from the water tank and storing the ground coffee; An extract storage container which is located under the filtration container and stores the extracted extract; And a digital operation part formed at one side of the side frame, wherein the digital operation part displays a set time of the calling step, wherein the digital operation part includes a first interval adjusting display member for indicating a valve opening interval, And a first time adjustment button member for indicating a total time for which the display member and the opening and closing of the valve are repeated; A second time adjustment display member for indicating a valve opening time, a second time adjustment display member for indicating a valve opening time, and a second time adjustment button An extraction step setting display unit including a member; A third interval adjusting display member for indicating a valve opening interval, a third opening adjustment indicating member for indicating a valve opening time, and a third time adjustment indicating a total time for repeated valve opening and closing, And a control unit for controlling the concentration of the water.

Also, the valve is made up of a solenoid valve.

In addition, a bottom surface of the water tank, which is located at a lower portion of the water tank for temporarily storing condensation water formed on the surface of the water tank, includes a bottom surface in the form of a rectangular plate, a rim protruding upward from the bottom surface at a predetermined interval, And a discharge hole formed at one side of the bottom surface for discharging condensation water; And a condensation water storage tank located below the support plate and storing the condensation water discharged from the discharge hole.

According to the present invention, the following effects can be obtained.

First, it is advantageous to mechanically control the extraction rate and amount of the Dutch coffee when the Dutch coffee is extracted, so that it is possible to always produce a Dutch coffee having a certain anti-taste and flavor.

Second, extraction of the extracted coffee juice with different flavor and amount by extracting the extracted coffee by the extraction step, the extraction step and the concentration control step, respectively, is advantageous in producing a deep coffee with a rich taste and smell.

Third, the water is uniformly distributed to the edge of the filter container containing the ground coffee powder, so that a certain concentration of coffee can be extracted in accordance with the amount of the coffee powder contained in the filter container. There is an effect that can be provided to consumers.

Fourth, since the incense inducing means is provided at the lower end of the filtration vessel so as to collect the fragrance in the extractive liquid storage container, it is possible to prevent the fragrance of the Dutch coffee from being volatilized or contained in the extractive liquid storage container, so that the rich aroma of coffee can be felt .

Fifth, a dewatering water storage tank for storing water temporarily stored in the base plate and the base plate is provided at the lower part of the tanks in order to prevent the condensation water from condensation on the surface of the water tank from falling down into the coffee extracting apparatus, Thereby preventing the occurrence of errors or failures in the Dutch coffee extracting apparatus.

Sixth, a plurality of nozzles formed in the cooling tank are connected to a plurality of filtration vessels, and the same number of extractive liquid storage vessels as the filtration vessels are provided to extract a large amount of Dutch coffee. It has the advantage of extracting the Dutch coffee.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flowchart showing a method of extracting coffee from a Dutch coffee according to the present invention; FIG.
2 is a view showing the outline of a Dutch coffee extracting apparatus according to the present invention.
3 is a view showing a digital operation unit of the Dutch coffee extracting apparatus according to the present invention.
4 is a view showing the inside of the Dutch coffee extracting apparatus according to the present invention.
FIG. 5 is a diagram showing the appearance of a Dutch coffee extracting apparatus according to the present invention. FIG.
6 is a view showing a water tank, a base plate and a condensation water storage tank of a Dutch coffee extracting apparatus according to the present invention.
FIG. 7 is a schematic view of the valve opening and closing of the Dutch coffee extraction method according to the present invention. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

The method of extracting coffee according to the present invention includes a water tank 100 in which water is stored, a grounded coffee powder stored in the water tank 100, and a filter 200 connected between the water tank and the water tank, The valve opening interval, the time at which the valve is opened from the time the valve is opened, and the total time at which the valve is opened and the extraction is performed again at the next opening time after the extraction is completed and closed.

As described above, in order to control the speed at which the Dutch coffee is extracted, it is necessary to set the interval at which the valve is opened and to set the time at which the valve is opened from the point at which the valve is opened to control the extraction amount at which the Dutch coffee is extracted once. (S1) for setting the time at which the valve is kept opened so as to control the total extraction speed, and the total time at which the valve is repeatedly opened at regular intervals.

Specifically, the valve opening interval indicates a time interval from when the valve is closed to when the valve is opened again.

Further, the time at which the valve opening is maintained indicates the time at which the valve is kept open until the valve is closed, and the total time at which the valve is repeatedly opened and closed is the time at which the valve is opened The time at which the valve is set to be repeated so that the valve is opened and closed according to the valve opening interval and the time at which the valve is kept open.

At this time, the time setting step S1 can be set for each of the calling step S2, the extracting step S3, and the concentration adjusting step S4, which will be described later. Specifically, And the respective valve opening intervals, the time at which the valve is held open, and the total time at which the valve is opened and closed can be set.

The time setting step S1 and the control for each step may be performed automatically by the control unit c, and the control unit c for mechanically controlling the time setting step S1 may be implemented by a microcomputer. In this way, it can be repeatedly extracted for a predetermined time interval.

The Dutch coffee extracted in this way may include a calling step S2 and an extracting step S3, and the calling step S2 may repeatedly carry out water receptive to the coffee powder contained in the filter container for a predetermined time at regular intervals Thereby extracting the coffee powder.

Since the extracting step S3 is performed after the step S2, it is possible to continuously extract the repeated coffee for a predetermined time interval.

Here, the valve opening interval, the valve opening time, and the total time that the valve is opened and closed repeatedly are set differently so that the extraction amount and the extraction speed are different for each step, Extracts that can be extracted from coffee powder can be extracted as much as possible.

In the calling step S1, the valve opening interval is set to 10 minutes to 90 minutes, the time for which the valve is kept open from the valve opening time is set to 1 second to 10 seconds, The time can be set to 10 minutes to 2 hours.

In addition, in the extraction step S2, the valve opening interval is set to 1 second to 10 seconds, the time for which the valve is kept open from the valve opening time is set to 0.01 second to 1 second, The time can be set to 2 to 24 hours.

When the opening interval of the valve is set to be less than 10 minutes in the calling step (S1), the coffee powder does not stay in the water for a sufficient time and the water moves downward by the gravity and the coffee powder can not withstand the osmotic pressure The coffee can not be called anymore, which may lead to problems in extraction.

In addition, if the valve opening interval exceeds 90 minutes, the coffee bean having a water-soluble property exceeds the maximum value of the action of extracting the component of the coffee bean, thereby extracting a bad bitterness.

If the time for which the valve is kept open from the valve opening time is 1 second or less, water can not be sufficiently absorbed into the coffee powder, and smooth solvent action can be suppressed, so that a good taste and flavor can not be obtained.

In addition, when the valve is opened for more than 10 seconds from the valve opening time, water is excessively absorbed into the coffee powder, so that the discharge of the component can be accelerated and the flavor and taste of the coffee can not be properly extracted.

If the total time (timer) in which the valve is repeatedly opened and closed is 10 minutes or less, the amount of water required for calling the coffee powder is small, and the coffee extraction yield is lowered due to the call of coffee and the coffee taste is significantly lowered. If the time (timer) is longer than 2 hours, the extraction yield of extracting the coffee powder may increase, which may lead to a taste of the coffee oil rather than a deep feeling.

In addition, in the extraction step (S2), when the opening interval of the valve is 1 second or less, the time for the water to come in contact with oxygen in the air is shortened, and the hydrolysis between coffee and water is not properly performed. And when the opening interval of the valve is 10 seconds or longer, the time for the water to come in contact with oxygen in the air is prolonged, so that the hydrolysis is activated too much, Lt; / RTI >

When the valve opening time is less than 0.01 second from the valve opening time, the amount of water is decreased and the moving speed of the coffee ingredient is decreased. At the same time, the leaching amount of the coffee ingredient becomes excessive, The amount of water increases when the time for which the valve is opened from the valve opening time is 1 second or more, and the amount of the coffee component The leaching effect in which the coffee component is appropriately extracted can not be observed, so that the flavor is weakened, the taste is poor, and the problem of the fat content is decreased.

If the total time (timer) during which the valve is opened and closed repeatedly is less than 2 hours, the leaching amount of the component in the leaching process is decreased, and the density and weight feeling felt inside may be lightened and the flavor may be lowered. (Timer) is longer than 24 hours, if the extraction time is excessively long, the amount of leaching of the component in the leaching process becomes large, and when the coffee is put on the coffee, the density and heavy feeling felt in the mouth become heavy and the flavor is not overtaste. .

The concentration step S4 for adjusting the concentration of the extracted coffee after the calling step S2 and the extracting step S3 may be additionally performed without limitation.

In other words, the concentration adjusting step (S4) is performed after the extracting step (S3). Extraction of Dutch coffee is repeatedly performed for a predetermined time at a predetermined interval, and the amount of water supplied is increased to control the concentration of hot coffee It is.

In addition, in the concentration adjusting step (S3), the valve opening interval is set to 1 second to 10 seconds, the time for which the valve is kept open from the valve opening time is set to 1 second to 10 seconds, The total time can be set to 10 minutes to 2 hours.

Further, in the concentration adjusting step (S3), when the opening interval of the valve is less than 1 second, the amount of water increases and the Dutch coffee concentration becomes soft. When the opening interval of the valve is 10 seconds or more, And the concentration control may fail.

If the time for which the valve is opened from the valve opening time is less than one second, the amount of water is small and the coffee concentration becomes large. If the time for which the valve is opened from the valve opening time is more than 10 seconds, If the total time (timer) in which the valve is repeatedly opened and closed is more than 2 hours, the amount of water becomes excessively large and the concentration of the crude coffee liquid solution extracted in the extraction step (S2) May become too soft and the flavor and richness of the coffee may be deteriorated.

Here, on the basis of the valve opening interval of the calling step S2 and the time of holding the valve opening, the valve opening interval of the extraction step S3 may be set shorter than the valve opening interval in the calling step S2, The time for which the opening is maintained is shorter than the time for which the valve is kept open in the calling step S2 so that the extraction speed is fast and the total time for repeating valve opening and closing in the extraction step S3 is set long, can do.

Also, the valve opening interval in the concentration adjusting step S4 may be set to be shorter than the valve opening interval in the calling step S2, and the time at which the valve is maintained to be maintained may be shorter than the time to maintain the valve opening in the calling step S2 The extraction time is set to be longer than the time to maintain the valve opening in the extraction step S3 so that the extraction speed is faster than the spouting step S2 and the total time in which the valve is opened and closed in the concentration adjustment step S4, The extraction amount may be set to be similar to the calling step S1 and the extraction amount may be larger than the calling step S2 and may be extracted less in the extraction step S3.

In addition, the valve opening interval in the calling step S2 is set to be larger than the valve opening interval in the extraction step S3 and the concentration adjusting step S4, and the time during which the valve opening is maintained is also set to the extraction step S3 and the concentration adjusting step S4 ), So that the extraction speed is very slow, and the extraction amount is the smallest but not limited.

The reason why the extraction amount of the concentration control step S4 is larger than the extraction amount of the step S2 is that a large amount of water flows in a short interval to control the concentration of the extracted coffee.

The proportion of the crude coffee solution extracted in the calling step S2, the extraction step S3 and the concentration adjusting step S4 of the Dutch coffee is determined in the calling step S2 on the basis of 100% , 12-23% is extracted in the extraction step (S3), and 3-5% is extracted in the concentration control step (S4).

In the step S2, although the extraction amount is small, the undiluted solution can be extracted in a relatively dense concentration since the undiluted solution is supplied by supplying water to the coffee powder for the first time. In the extraction step S3, The undiluted solution can be extracted at the highest ratio.

In the concentration control step (S4), water is supplied to the ground coffee powder, and the concentration of the extracted coffee is supplied for the purpose of controlling the concentration of the extracted coffee.

In order to extract the hot coffee, the ground coffee powder is put into a filter container, and water is supplied from a water tank and passed through a filter container to extract hot coffee, To be extracted while sufficiently absorbing the water.

In addition, the time control of the extraction step can control the total time so that the extraction liquid can be continuously extracted rapidly, and the time control of the concentration control step (S3) can shorten the extraction interval to adjust the concentration of the extracted coffee, The time can be adjusted so that it is extracted quickly and quickly.

When the time setting of the calling step S2, the extracting step S3 and the concentration adjusting step S4 is completed, the start button 560 can be played to cause the Dutch coffee extracting apparatus 1 to operate, (S2), the extraction step (S3), and the concentration adjustment step (S4) are sequentially performed to extract the Dutch coffee.

The Dutch coffee extracting apparatus 1, which is operated by adjusting the valve bag interval, the valve opening time, and the total time during which the valve is opened and closed in the calling step S2, the extracting step S3 and the concentration adjusting step S4, The upper body frame 10 is provided with an upper body frame 10 in the shape of a rectangular enclosure whose length and height are similar to each other and the lower longitudinal direction of the upper body frame 10 is the same as that of the upper body frame 10, The lower main body frame 20 may be formed to be spaced apart from the center of the upper main body frame 10 by a predetermined distance.

A bottom frame 30 having a width similar to the width of the upper body frame 10 may be formed on the lower portion of the lower body frame 20. The upper body frame 10 and the lower body frame 20 may have through holes . &Lt; / RTI >

A side frame 40 having the same width as the lower main body frame 20 may be formed from the upper end to the lower end of the lower main body frame 20 so as to connect the upper main body frame 10 and the lower main body frame 20 .

The coffee extracting apparatus 1 comprises a water tank 100 for storing water therein, a filtration vessel 200 located below the water tank 100 and storing the ground coffee powder therein, And an extract storage container 300 positioned below the filtration container 200 and storing the extracted liquid extracted from the filtration container 200. [

A water tank 100 is positioned inside the upper body frame 10 and a filtration vessel 200 and an extract storage vessel 300 can be located outside the lower body frame 20.

In addition, the Dutch coffee extracting apparatus 1 may be formed long in the downward direction from the upper part, and the water tank 100, the filtration vessel 200, and the extractive liquid storage vessel 300 may be sequentially disposed in the downward direction have.

In addition, the side frame may be provided with a digital operation unit 500 capable of adjusting the step S2, the extraction step S3 and the concentration extraction step S3, S2), an extraction step setting display unit 520 for displaying the setting of the extraction step S3, a density adjustment setting display unit 530 for displaying the density adjustment step (S4) setting, May be provided.

In addition, the calling step setting display unit 510 includes a first interval adjusting display member 511 for displaying the opening interval of the valve on a divisional basis, a first opening adjusting display member 512 And a first time adjustment display member 513 for displaying the total time in which the above process is repeated in minutes or on a time basis.

The extraction step setting display unit 520 includes a second interval adjusting display member 521 for displaying the valve opening interval in seconds, a second opening adjusting display member 522 for displaying the time for maintaining the valve opening in seconds, And a second time adjustment display member 523 for displaying the total time for repeating the above process in units of time.

The concentration control setting display unit 530 includes a third interval adjusting display member 531 for displaying the valve opening interval in seconds, a third opening adjusting display member 532 for displaying the valve opening time in seconds, And a third time adjustment indicating member 533 for displaying the total time for repeating the above process in minutes or on a time basis.

In addition, the digital operation unit 500 may be provided with a total extraction time display member 540 indicating the total time set by the first, second and third time adjustment display members 513, 523 and 533, (Not shown) for sequentially moving and setting one time after completion of one time setting by using the adjustment button 550. In addition, But the present invention is not limited thereto.

Alternatively, the digital operation unit 500 may be provided with a storage button 570. When the storage button 570 is pressed after completing one time setting with the adjustment button 550, the digital setting unit 500 may be moved to the next setting display unit. And the digital operation unit 500 may be provided with a start button 560 for operating the extraction device.

The water tank 100 located at the uppermost portion of the Dutch coffee extracting apparatus 1 set and operated by the digital operation unit 500 is a tank for storing water therein and the water to be filled therein is separated from an external tank Or may be supplied directly from the water supply facility to which water is supplied, without limitation.

The water tank 100 is provided with a water level adjusting means (not shown) for adjusting the amount of water supplied to the water tank 100 according to the interval and amount of water discharged from the water tank 100 to the filtration vessel 200 The amount can be adjusted to maintain a constant water level, but the water level can be maintained at all times, but is not limited to this.

The water level adjusting means provided in the water tank 100 is connected to a pipe for supplying water to the water tank 100. When the water tank 100 reaches a full water level, the supply of water is stopped and water is supplied to the filtration vessel 200, The motor can be operated again to fill the water and stop again when the water level is high again.

The water level adjusting means may be a sensor for measuring the height of the water, or the water level may be adjusted using the water level used in the toilet.

A plurality of water supply units 130 capable of supplying water to the filtration vessel 200 may be formed on both sides of the lower end of the water tank 100. The water supply unit 130 may include a water supply unit 130, Lt; RTI ID = 0.0 > 400 < / RTI >

A rectangular plate-like support plate 110 having a frame protruding from the frame 111 at a predetermined interval may be formed at a lower portion of the water tank 100. The support plate 110 may be formed to have a size larger than the bottom area of the water tank 100 .

The support plate 110 may have a rectangular bottom surface 112 and a rim portion 111 protruding upward from the outer side of the bottom surface 112 at a predetermined interval and may have a dew condensation number formed on the surface of the water tank 100 And a discharge hole 113 may be formed at one side of the bottom surface 112 to discharge stored condensate water.

The condensate water temporarily stored in the support plate 110 is stored in the lower part of the support plate 110 in order to prevent the condensation water temporarily stored in the support plate 110 from flowing into the coffee extracting apparatus 1, The condensate water storage tank 120 may have a top opening to allow the water discharged from the discharge hole 113 to flow.

At this time, the surface of the bottom plate 112 of the support plate 110, which is in contact with the water tank 100, may be inclined downward at a predetermined angle toward the discharge hole 113, but the present invention is not limited thereto.

In addition, water can be supplied to the filtration vessel 200 by the nozzle 400, which is connected to the water tank 100 in a large number, and the filtration vessel 200 can be fixed to the outer side of the lower body frame 20.

At least one filtration vessel 200 may be formed to extract a large amount of coffee. Preferably, eight filtration vessels may be formed on each of four sides of the lower main body frame 20, Eight nozzles 400 may be formed to supply water to the filtration vessel 200 from the filtration vessel 100.

In addition, the eight nozzles 400 for supplying water to the filtration vessel 200 may include a valve 800 for controlling the extraction speed and the extraction amount, respectively. The valve 800 may be a solenoid valve, It is not limited thereto.

In addition, the control of the first, second, and third time adjustment buttons 513, 523, and 533 can set a time using a timer (not shown).

Such a filtration vessel 200 may include a vessel body 210, a distribution means 220, a filtration vessel upper stopper 230, and a filter vessel lower stopper 240, as shown in FIG.

The container body 210 may be formed in the shape of a mesh (not shown) formed to be smaller than the particles of the ground coffee powder so as to penetrate the upper portion of the container body 210 and to store the ground coffee powder and move the extracted liquid to the lower portion. There is no restriction.

The dispensing means 220 may be positioned at the upper end of the container body 210 and may be positioned at the upper end of the container body 210, And the water to be supplied may be uniformly injected into the container body 210.

The dispensing means 220 may be formed as a downwardly inclined shape from the center to the outside, and a plurality of through holes 221 may be radially formed on the front surface to uniformly spray water.

The water supplied from the nozzle 400 flows down along the inclined surface of the dispensing means 220 and falls into the filtration container 200. The water is distributed to a plurality of places through the plurality of through holes 221, (Not shown).

The filter cap upper cap 230 may be formed to cover the container body 210 at an upper portion of the distributing means 220 and may be connected to the nozzle 400 through which the filter cap upper cap 230 Can be closed while closing the upper portion of the container body 210 to prevent the fragrance from being discharged to the outside.

The upper portion may be formed to be inserted into the lower outer surface of the container body 210. The lower portion not inserted into the container body 210 may be formed to be inclined downward from the outer side toward the center, A filtration vessel lower plug 240 having a funnel-shaped inlet tube 246-1 may be formed.

Specifically, the filtration vessel lower stopper 240 can be divided into a container body insert portion 241, a container body insert portion 245, and a funnel portion 246, and the container body insert portion 241 can be divided into a container body 210 The upper end may be formed to be the same as the inner circumference of the container body 210 and may be formed of a material such as a synthetic resin, The inclined portion 241-1 inclined at a predetermined angle toward the center of the container lower stopper may be formed and a vertical portion formed vertically from the end of the inclined portion 241-1 to the container main body seating portion 245 241-2 may be formed.

The sealing member seating portion 241-3 may be formed on the outer side of the vertical portion 241-2 so as to protrude repeatedly at a predetermined interval. The sealing member seating portion 241-3 may be provided with a container body A sealing member 260 may be additionally formed for tight coupling with the sealing member 210.

The container body seating portion 245 may be formed to have a larger diameter than the outer circumference of the container body 210 to seat the lower end of the container body 210.

Further, the funnel portion 246 may be formed under the container main body seating portion 245, and the funnel portion 246 may be inclined from the outer side to the center direction so that the extract liquid may be moved to the extractive liquid storage container 300, The filter can be formed in the form of a funnel having an injection tube 246-1 penetrating in the vertical direction at its center, and the perfume can be prevented from being discharged to the outside as in the case of the upper filter plug 230. [

In addition, a circular body 252 which is located inside the funnel portion 246 and penetrates the central portion and a suction induction means 250 in which a plurality of circular ribs 251 are radially formed in the circular body 252 are additionally provided .

The suction inducing means 250 may be formed to be inclined downward from the outer side toward the central direction and four to six smooth lines 251 may be formed. Can be sucked into the body 300, and can feel a rich fragrance when drinking.

In addition, the extracted liquid extracted from the filtration vessel 200 may be moved to the extracted liquid storage vessel 300 along with the liquid transfer means 310 and stored.

The upper portion of the liquid transfer means 310 may be connected to the injection tube 246-1 of the filtration vessel 200 and the lower portion thereof may be inserted into the inlet of the liquid storage vessel 300. [

The bottom portion of the extract liquid transfer means 310 is inserted into the inlet of the extract liquid storage container 300 and then is seated at the entrance of the extract liquid storage container 300. In the middle portion of the extract liquid transfer means 310, A member 320 may be additionally provided.

In this way, the extracted liquid extracted from the filtration vessel 200 can be safely moved to the extracted liquid storage vessel 300.

S1: Calling step
S2: Extraction step
S3: concentration extraction step
1: Dutch coffee extractor
100: Water tank
200: Filtration container
300: Extract liquid storage container
400: nozzle
500: Digital control unit

Claims

It is possible to control the extraction amount by setting the time for maintaining the opening of the valve installed between the water tank 100 and the filtration vessel 200 and to control the extraction speed by setting the opening interval of the valve, And the total extraction speed is mechanically controlled,
A step (S2) of causing the coffee powder contained in the filtration vessel (200) to absorb water to be extracted while being extracted;
And an extracting step (S3) for continuously extracting the post-dough coffee after the calling step (S2)
The valve opening interval, the time for which the valve is kept open, and the total time for which the valve is opened and closed are set for each step (S1) to control the extraction amount and the extraction speed,
The calling step (S2)
The valve opening interval is set to 10 minutes to 90 minutes, the valve opening time from the valve opening time is set to 1 second to 10 seconds, the total time of valve opening and closing is set to 10 minutes to 2 hours,
The extraction step S3
The valve opening interval is set to 1 second to 10 seconds, the valve opening time from the valve opening time is set to 0.01 second to 1 second, the total time of valve opening and closing is set to 2 to 24 hours,
(S4) for adjusting the concentration of the extracted hot coffee after the extracting step (S3)
The concentration adjustment step (S4)
The valve opening interval is set to 1 second to 10 seconds, the valve opening time from the valve opening time is set to 1 second to 10 seconds, the total time of valve opening and closing is set to 10 minutes to 2 hours,
The Dutch coffee extraction stage
12-23 wt% is extracted in the step S2 and 70-85 wt% is extracted in the extracting step S3 based on 100 wt% By weight of the total amount of the extract is extracted.

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A Dutch coffee extracting apparatus operated by regulating a valve bag interval, a valve opening time, and a total time for repeated valve opening and closing in the calling step (S2), the extracting step (S3), and the concentration adjusting step (S4)
Dutch coffee extractor
An upper body frame 10;
A lower main body frame 20 formed at a lower portion of the upper main body frame 10 to be shorter than a width of the upper main body frame 10;
A side frame 40 connecting the upper main body frame 10 and the lower main body frame 20;
A water tank (100) located inside the upper body frame (10) and having a lid on the upper part to store water therein;
A filtration vessel 200 located on both sides of the lower main body frame 20 and connected to the water tank 100 and the nozzle 400 so as to receive water from the water tank 100 and storing the ground coffee;
An extract storage container 300 located below the filtration container 200 and storing the extracted extract; And
And a digital operation part (500) formed on one side of the side frame (40)
The digital operation unit 500
A first interval adjusting display member 511 for indicating a set time of the calling step S2 and indicating a valve opening interval, a first opening adjusting indicating member 512 for indicating a valve opening time, A calling time setting display 510 including a first time adjusting button member 513 for displaying time;
A second interval adjusting display member 522 for indicating the valve opening time, and a total time for repeatedly opening and closing the valve are displayed An extraction step setting display unit 520 including a second time adjustment button member 523 to be operated;
A third interval adjusting display member 531 for indicating the valve opening interval, a third opening adjusting indicating member 532 for indicating the valve opening time, and a total time for repeating the opening and closing of the valve And a third time adjustment button member (533) for indicating the third time adjustment button member (533).

5. The method of claim 4,
Wherein the valve (800) comprises a solenoid valve.

5. The method of claim 4,
The water tank 100 is positioned below the water tank 100 to temporarily store condensation water on the surface of the water tank 100,
A rim 111 protruding upward at a predetermined interval from the outside of the bottom surface 112 and a rim 111 formed at one side of the bottom surface 112 for discharging stored condensation water. A base plate 110 including an exhaust hole 113;
And a condensation water storage tank (120) located below the support plate (110) and storing condensation water discharged from the discharge hole (113).