WO2018159958A1 - Appareil d'extraction de café et procédé d'extraction de café utilisant celui-ci - Google Patents

Appareil d'extraction de café et procédé d'extraction de café utilisant celui-ci Download PDF

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Publication number
WO2018159958A1
WO2018159958A1 PCT/KR2018/002214 KR2018002214W WO2018159958A1 WO 2018159958 A1 WO2018159958 A1 WO 2018159958A1 KR 2018002214 W KR2018002214 W KR 2018002214W WO 2018159958 A1 WO2018159958 A1 WO 2018159958A1
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WO
WIPO (PCT)
Prior art keywords
coffee
extraction chamber
extraction
atmospheric pressure
vacuum
Prior art date
Application number
PCT/KR2018/002214
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English (en)
Korean (ko)
Inventor
배순철
이정현
Original Assignee
훼스텍 주식회사
배순철
Priority date (The priority date 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 date listed.)
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Publication date
Priority claimed from KR1020170026220A external-priority patent/KR101820018B1/ko
Priority claimed from KR1020170094621A external-priority patent/KR101814535B1/ko
Application filed by 훼스텍 주식회사, 배순철 filed Critical 훼스텍 주식회사
Publication of WO2018159958A1 publication Critical patent/WO2018159958A1/fr

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    • 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
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
    • A47J31/469—Details of hydraulic circuits
    • 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
    • A47J31/00—Apparatus for making beverages
    • A47J31/24—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure
    • A47J31/32—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure with hot water under air pressure
    • 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
    • A47J31/00—Apparatus for making beverages
    • A47J31/24—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure
    • A47J31/34—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure with hot water under liquid pressure
    • A47J31/36—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure with hot water under liquid pressure with mechanical pressure-producing means
    • 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
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • 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
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices

Definitions

  • the present invention relates to a coffee extracting apparatus for extracting liquid from coffee powder and a coffee extracting method using the same, the solubility extracted from the coffee powder by switching the interior of the extraction chamber to vacuum, atmospheric pressure, and pressurized state after the coffee powder is called It relates to a coffee extraction device having a flavor component and a coffee extraction method using the same.
  • a method of extracting coffee from the coffee powder obtained by grinding coffee beans is various as follows.
  • the method of using an espresso machine the method of using a gravity filter to put a paper filter in a funnel, pour coffee powder, and pour hot water into a kettle to extract coffee, and the aeropress of extracting coffee by applying a filter to a container and pressurizing it with a piston.
  • Method US Patent US 2006/0260471 A1
  • the coffee pot is made into two layers, water is injected into the lower layer, coffee powder and funnel is installed on the upper layer, and heat is applied to the coffee while the lower layer water passes through the upper funnel. Moka pot method is extracted.
  • the present invention is called coffee powder or dried tea leaves in a pressurized state, and then called in a vacuum state and then converted to atmospheric pressure to be included in the coffee powder or tea leaves. It is an object of the present invention to provide a coffee extraction device and a coffee extraction method using the same, which can effectively discharge the flavor component from the coffee powder or tea leaves.
  • the present invention comprises the steps of injecting the coffee powder into the extraction chamber; Injecting hot water into the extraction chamber; Pressurizing the inside of the extraction chamber to soak the coffee powder in a precipitated state; Switching the inside of the extraction chamber to an atmospheric pressure state; A vacuum step of converting the inside of the extraction chamber into a vacuum state in order to increase the size of the coffee powder to infiltrate hot water into the pores of the coffee powder; And converting the inside of the extraction chamber into an atmospheric pressure state such that water penetrating the pores of the coffee powder is discharged from the coffee powder together with the soluble flavor component contained in the coffee powder. to provide.
  • the pressing step may be repeated at least twice.
  • the vacuum step may be repeated at least two times.
  • an additional pressurizing step of pressing the inside of the extraction chamber to call the coffee powder in the precipitated state may further include.
  • the pressing step may include: a first pressing step of pressing the inside of the extraction chamber after the first hot water input; Converting the inside of the extraction chamber to an atmospheric pressure state after the first pressurization step; And a second pressurizing step of pressurizing an inner side of the extraction chamber after inputting a larger amount of secondary warm water than primary warm water.
  • the present invention comprises the steps of injecting the coffee powder into the extraction chamber; A first pressurizing step of putting primary hot water into the extraction chamber and pressing the inside of the extraction chamber to soak the coffee powder in a precipitated state; A second pressurizing step of inputting a larger amount of secondary hot water than the amount of the primary hot water into the extraction chamber, and applying pressure to the inside of the extraction chamber so that the coffee powder is called in a precipitated state; A first vacuum step of converting the inside of the extraction chamber to an atmospheric pressure state and then converting the vacuum chamber into a vacuum state in order to forcibly infiltrate hot water into the pores of the coffee powder; A third pressurizing step of applying a pressure to the inside of the extraction chamber to turn the inside of the extraction chamber into an atmospheric pressure state and to soak the coffee powder in the settled state; A second vacuum step of converting the inside of the extraction chamber into an atmospheric pressure state and then converting the vacuum chamber into a vacuum state to force hot water into the pores of the coffee powder; After converting the inside of the extraction chamber to an
  • the present invention also provides an extraction chamber; A piston moving along the inside of the extraction chamber and having a discharge port for discharging coffee; A drive cylinder for reciprocating the piston; A drive cover having a sealing housing for moving up and down to open and close the opening of the extraction chamber; A driving unit for driving the driving cover left and right; A pressure controller for changing the inside of the extraction chamber to any one of an atmospheric pressure state, a pressurized state, and a vacuum state; A boiler for storing hot water for supplying into the extraction chamber through the sealing housing; A coffee discharge line through which coffee is discharged from the extraction chamber; And a coffee extraction valve configured to open and close the coffee discharge line, thereby achieving the above object.
  • the drive cover may be provided with a scraper for moving the coffee cake to the outside.
  • the drive cover may be moved to a first position corresponding to the coffee cake inlet for removing the coffee cake and to a second position corresponding to the opening of the extraction chamber.
  • the sealing housing is lowered by a third position which opens the opening of the extraction chamber by the elastic force of the elastic member provided in the drive cover, and by the air pressure supplied between the drive cover and the sealing housing by the pressure adjusting unit.
  • a fourth position may be moved to close the opening of the extraction chamber.
  • the pressure control unit is an air supply valve for maintaining a pressurized state for a set time by applying a set pressure to the interior of the extraction chamber into which the coffee powder and hot water are added;
  • a vacuum valve which maintains a vacuum state for a set time by converting the inside of the extraction chamber into a vacuum state of a set size;
  • Atmospheric pressure valve to maintain the inside of the extraction chamber in the atmospheric pressure state for a predetermined time by switching from the pressurized state or vacuum state to the atmospheric pressure state;
  • a controller for automatically controlling each valve according to a set order and time.
  • the extraction process using the extraction device is a coffee extraction chamber using compressed air from an air compressor driven by a control unit for automatically controlling a plurality of pressure regulating valves according to a set order and time
  • a coffee extraction device for extracting the soluble flavor component contained in the coffee powder in the extraction chamber through the process of switching the interior of the vacuum, atmospheric pressure or pressurized state, wherein the coffee powder and water is extracted
  • a second process of turning on the coffee settling air supply valve controlling the flow of air supplied by the compressor and supplying the pressure to the inside of the extraction chamber through the first air nozzle provided in the driving cover to increase the pressure;
  • the first step is the eleventh step of placing the drive cover at the upper inlet of the extraction chamber; Step 12 of supplying the air pressure between the upper surface of the sealing housing provided on the inside of the drive cover through the second air nozzle as the sealing housing drive valve is turned on under the control of the controller; And a step 13 of sealing the extraction chamber by lowering the sealing housing by the air pressure supplied through the second air nozzle.
  • the air in the extraction chamber is discharged to the outside between the vacuum valves by the air pressure supplied from the compressor as the respective vacuum valves are turned on.
  • the eighth step is a step 21 of opening the coffee receiving unit by turning on the coffee extraction valve; Turning on the coffee settling air supply valve to supply air to the extraction chamber to pressurize the coffee downward for a predetermined time; And turning off the coffee settling air supply valve and the coffee extraction valve after discharging the coffee to the outside through the coffee nozzle in step 22.
  • the eighth process is a 31 step of opening the coffee container by turning on the coffee extraction valve; Step 32 of raising the piston unit provided at the lower end of the extraction chamber at a set speed to maintain the inside of the extraction chamber at a set pressure; Step 33 of turning off the coffee extraction valve and turning on the atmospheric pressure valve when the piston unit is lifted and the coffee is discharged to the outside; And 34 steps of lowering the piston unit to its original position.
  • the extracting chamber is the 51 step of turning off the sealing housing drive valve under the control of the controller in the atmospheric pressure state; Step 52, in which air between the driving cover and the sealing housing is discharged to raise the sealing housing; A step 53 of turning on the piston drive valve to raise the piston unit to the first position of the upper end of the extraction chamber to move the coffee cake to the outside of the extraction chamber; And moving the drive cover laterally to move the coffee cake to the collection vessel by a scraper coupled to the bottom of the drive cover.
  • the coffee or tea having a deep flavor can be obtained by effectively extracting the soluble flavor component contained in the coffee powder or the tea leaf.
  • FIG. 1 is a block diagram showing a coffee extraction device according to an embodiment of the present invention
  • FIG. 2 is a perspective view showing a coffee extraction device according to an embodiment of the present invention
  • FIG. 3 is a pneumatic circuit diagram of a coffee extraction device according to an embodiment of the present invention.
  • 4 to 8 are flowcharts sequentially illustrating a coffee extraction process according to an embodiment of the present invention.
  • FIG. 9 is a flowchart sequentially illustrating a coffee extraction process according to an exemplary embodiment replacing FIG. 8.
  • 10 to 17 are schematic views sequentially illustrating respective processes of the coffee extraction process according to an embodiment of the present invention.
  • the present invention relates to a coffee or tea extraction device.
  • an apparatus and method for extracting coffee from coffee powder will be described.
  • the method of extracting tea from dried tea leaves through the apparatus for extracting coffee is the same. Therefore, hereinafter, only the extraction apparatus for extracting coffee from the coffee powder and the extraction method using the same will be described.
  • 'Coffee' referred to in the present invention means a liquid coffee containing a flavor component extracted from coffee powder mixed with hot water.
  • FIG. 1 is a perspective view showing a coffee extraction device according to an embodiment of the present invention
  • Figure 2 is a block diagram showing a coffee extraction device according to an embodiment of the present invention
  • Figure 3 according to an embodiment of the present invention Pneumatic circuit diagram of a coffee extraction device.
  • the coffee extracting apparatus 10 includes a coffee extracting unit 100 for extracting coffee from a mixture of hot water and coffee powder mixed therein, and an interior of the coffee extracting unit 100.
  • Compressor 200 for adjusting the air pressure, such as to pressurize the air or to switch to a vacuum state and atmospheric pressure state, and a pressure control unit 300 including a plurality of valves disposed on each element on the pneumatic circuit of the coffee extraction device 10 ).
  • the coffee extraction device 10 is a coffee extraction unit 100, the compressor 200 and the pressure control unit 300 to control the coffee extraction unit 100, the compressor 200 and the pressure control unit 300 And a controller 400 electrically connected to each other.
  • the controller 400 may be a micro controller unit (MCU).
  • the coffee extraction unit 100 includes a cabinet 101 that forms an exterior.
  • the compressor 200, the pressure regulator 300, and the controller 400 may be disposed inside the cabinet 101.
  • the upper plate 103 is disposed above the cabinet 101, and the driving cover 150 is disposed to be linearly moved left and right by the driving unit 160 (see FIG. 3) while being spaced apart from the upper plate 103. .
  • the top plate 103 is formed with a coffee cake inlet 104 for injecting the remaining coffee cake 3 (see FIG. 16) after the coffee is extracted.
  • a coffee cake collecting container 110 (see FIG. 10) may be disposed below the coffee cake inlet 104.
  • the cabinet 101 may form a door 102 on one side so that the coffee cake collecting container 110 can be drawn out from the inside of the cabinet 101.
  • a coffee powder inlet 105 for introducing coffee powder 1 (see FIG. 10) into the extraction chamber 120 is formed in the coffee plate inlet 104.
  • the coffee powder inlet 105 is also used as an outlet for discharging the coffee cake 3 from the extraction chamber 120.
  • An approximately cylindrical extraction chamber 120 is disposed below the coffee powder inlet 105.
  • a cup support 106 for supporting a cup is formed below the outside of the cabinet 101, and a coffee nozzle 107 through which the extracted coffee is discharged above the cup support 106 and a hot water button 109 by the user. When pressed, a hot water nozzle 108 through which hot water is discharged may be disposed.
  • the pneumatic cylinder 130 is disposed at the lower side of the extraction chamber 120, and the piston unit 140 of the pneumatic cylinder 130 may be lifted and disposed inside the extraction chamber 120.
  • the extraction chamber 120 may be disposed outside the band heater 121.
  • the heater 121 heats the extraction chamber 120 to prevent the temperature of the mixture of coffee powder and hot water contained in the extraction chamber 120 (hereinafter, referred to as 'mixture') during the extraction of coffee is lowered to prevent the extraction efficiency from decreasing. Can be.
  • the pneumatic cylinder 130 includes an upper limit switch 131 and a lower limit switch 132 for detecting the top dead center and the bottom dead center of the piston unit 140, respectively.
  • the upper and lower limit switches 131 and 132 transmit detection signals to the controller 400.
  • the controller 400 controls the valve to stop driving in the upward direction or the downward direction of the piston unit 140 when each detection signal is received.
  • the piston unit 140 has a filter 141 is disposed at the top for filtering the mixture.
  • the filter 141 may include a metal filter having a plurality of small holes and a paper filter seated on the upper surface of the metal filter. Metal filters are used semi-permanently, while paper filters are used for single use.
  • the piston unit 140 is formed below the filter 141, the liquid receiving the filtered mixture, that is, the coffee receiving unit 143 is accommodated.
  • the coffee receiving portion 143 may be formed in a substantially cone shape, and the coffee discharge line 145 for discharging the coffee to the outside of the piston unit 140 is connected.
  • the piston unit 140 is provided with a one-way valve 140a for discharging the coffee from the coffee container 143 to the coffee discharge line 145 and preventing the coffee from being transferred in the reverse direction.
  • the driving cover 150 may be selectively moved to a position corresponding to any one of the coffee cake inlet 104 and the coffee powder inlet 105 by the driving unit 160. That is, when the coffee powder 1 is introduced into the extraction chamber 120, the driving cover 150 moves to a position corresponding to the coffee cake inlet 104, and at the time of coffee extraction, the position corresponding to the coffee powder inlet 105. Go to.
  • the driving cover 150 may be equipped with a scraper 152 for moving the coffee cake 3 to the coffee cake inlet 104 to the outside.
  • the driving cover 150 is disposed in the sealing housing 151 to move up and down.
  • the sealing housing 151 opens and closes the upper opening 120a of the brewing chamber 120, and forms a closed space for brewing coffee together with the brewing chamber 120.
  • This space is switched at atmospheric pressure during the step for brewing coffee. For example, it is switched from the atmospheric pressure state to the pressurized state, the pressurized state to the atmospheric pressure state, the atmospheric pressure state to the vacuum state, and the vacuum state to the atmospheric pressure state.
  • the sealing housing 151 receives an elastic force in a rising direction by a spring 153 disposed between the side of the driving cover 150 and the side of the sealing housing 151.
  • the sealing housing 151 is lowered by the air supplied between the inside of the drive cover 150 and the upper surface of the sealing housing 151 through the second air nozzle 157, which will be described later, to open the upper opening 120a of the extraction chamber 120. ) Close.
  • the air pressure in the space formed between the inside of the drive cover 150 and the upper surface of the sealing housing 151 is greater than the elastic force of the spring 153.
  • the sealing housing 151 is raised again by the elastic force of the spring 153.
  • sealing housing 151 is coupled to the first air nozzle 156 and the hot water supply nozzle 155 penetrating the upper portion.
  • the hot water supply nozzle 155 supplies hot water into the extraction chamber 120 with the sealing housing 151 closing the upper opening 120a of the extraction chamber 120.
  • the first air nozzle 156 supplies air into the extraction chamber 120 to increase the pressure inside the extraction chamber 120.
  • the first air nozzle 156 may supply air pressure into the extraction chamber 120.
  • the coffee powder 1 shrinks (see FIG. 15) and precipitates (see FIG. 13).
  • the precipitation of the coffee powder in the hot water may be effectively called.
  • the extraction chamber 120 may be in a vacuum state as all the air inside the extraction chamber 120 is discharged to the outside through the first air nozzle 156, and, conversely, the extraction chamber 120 is external to the first air nozzle 156.
  • In communication with the inside of the extraction chamber 120 may be placed at atmospheric pressure.
  • the inside of the extraction chamber 120 may be selectively in one of a pressurized state, a vacuum state, and an atmospheric pressure state.
  • the second air nozzle 157 is coupled to the driving cover 150, and supplies air between the inside of the driving cover 150 and the upper surface of the sealing housing 151 or vice versa.
  • the sealing housing 151 is lowered, and when the air is discharged, the sealing housing 151 is a spring ( It rises again by the elastic force of 153).
  • the drive unit 160 includes a motor 161, a drive belt 163 for transmitting the rotational force transmitted from the motor 161 to the drive cover 150, a moving block 164, and a left side of the drive cover 150. And a left limit switch 165 and a right limit switch 166 for detecting a right upper limit point.
  • the motor 161 may use a stepping motor capable of forward / backward rotation and controlling the rotation speed.
  • the moving block 164 slides along the LM guide 162 by the driving of the driving belt 163 and is connected to the driving cover 150 through the connecting bracket 168. Accordingly, the driving cover 150 may linearly move left and right with the moving block 164.
  • the coffee extraction unit 100 may be provided with a boiler 170 inside.
  • the boiler 170 may include a temperature sensor 171, a water level sensor 172, and a heater 173.
  • the boiler 170 is connected to the hot water spray nozzle 155 provided in the sealing housing 151 to supply hot water at a predetermined temperature into the extraction chamber 120.
  • the water stored in the boiler 170 may be supplied through a nozzle (faucet) 8 connected to the water source.
  • the raw water supply valve 311 controls the supply of raw water discharged from the nozzle 8 into the boiler 170.
  • a filter 9 may be disposed in a line connecting the nozzle 8 and the raw water supply valve 311.
  • the coffee extraction unit 100 may include an operation unit 181 and a temperature display unit 183 disposed in the cabinet 101.
  • the operation unit 181 may be formed as a capacitive or pressurized touch screen to input a user's command and display the current state.
  • the temperature display unit 183 may display the temperature of the hot water stored in the boiler 170 or may display the temperature inside the extraction chamber 120. In this case, the temperature display unit 183 reflects the temperature detected from the temperature sensor 171 for detecting the temperature of the stored water of the boiler 170 and the temperature sensor 171 for detecting the temperature inside the extraction chamber 120. .
  • reference numeral 210 is an air filter
  • 220 is an air tank
  • 230 is an air distributor connected to each valve.
  • the pressure regulator 300 may be provided with a plurality of valves as shown in FIG. The function of each valve is explained in the process of brewing coffee described below.
  • FIGS. 4 through 8 are flowcharts sequentially illustrating a coffee extraction process according to an embodiment of the present invention
  • FIGS. 10 to 17 are schematic views sequentially illustrating respective processes of the coffee extraction process according to an embodiment of the present invention. to be.
  • the coffee extraction mode is selected through the operation unit 181 for coffee extraction (S1).
  • the driving cover 150 moves to the first position, that is, the position corresponding to the coffee cake inlet 104 (S2).
  • the driving cover 150 waits at the first position until the coffee brewing continuing command is input through the operation unit 181.
  • the predetermined coffee powder 1 is introduced into the extraction chamber 120 through the coffee powder inlet 105 (S3).
  • the driving cover 150 moves from the first position to the second position as shown in FIG. 11 (S4).
  • the sealing housing driving valve 301 when the sealing housing driving valve 301 is turned on, the sealing housing 151 is turned inside the driving cover 150 as shown in FIG. 12 by the air pressure supplied between the driving cover 150 and the sealing housing 151. It descends along (S5). Accordingly, the opening 120a of the extraction chamber 120 is closed by the sealing housing 151. As the O-ring coupled to the bottom of the sealing housing 151 is in close contact with the surface of the upper plate 103, the inside of the extraction chamber 120 is kept airtight.
  • the coffee powder 1 floats due to buoyancy.
  • subsequent soaking of the coffee powder cannot be effectively performed. Therefore, the step of precipitating the coffee powder (1) in the primary hot water (5) as follows.
  • the soaking proceeds for t1 seconds while the coffee powder 1b is precipitated (S11).
  • the coffee powder is soaked through the soaking so as to more effectively extract the flavor component from the coffee powder in a subsequent vacuum step.
  • the atmospheric pressure valve 305 When the soaking is completed, the atmospheric pressure valve 305 is turned on for supplying the second hot water (S12), and the inside of the extraction chamber 120 is switched to the atmospheric pressure state. At this time, the coffee powder is increased in size again in the state of the member number 1b as shown in FIG. Subsequently, the atmospheric pressure valve 305 is turned off after t seconds (S13).
  • the hot water supply valves 302 and 303 are turned on (S14), and a predetermined amount (for example, 200 cc) of secondary hot water 5a is extracted through the hot water supply nozzle 155 for t seconds. 120) supplied inward. After t seconds, when the hot water supply valves 302 and 303 are turned off (S15), the supply of the secondary hot water is stopped. In this case, the secondary hot water 5a and the first supplied hot water 5 are mixed with each other. Hereinafter, the mixed hot water is referred to as secondary hot water 5a for convenience of description.
  • the coffee precipitation air supply valve 304 is turned on (S16), and air is supplied into the extraction chamber 120 through the first air nozzle 156. Air is supplied until the inside of the extraction chamber 120 is a constant pressure (S17). When the inside of the extraction chamber 120 rises to a constant pressure, the coffee powder is reduced in size again and precipitates in the secondary hot water 5a as shown in FIG. 14. Subsequently, when the inside of the extraction chamber 120 reaches a constant pressure, the coffee settling air supply valve 304 is turned off (S18).
  • t2 seconds may be the same as or different from the aforementioned t1 seconds.
  • the atmospheric pressure valve 305 When the soaking is completed, the atmospheric pressure valve 305 is turned on (S20) and the inside of the extraction chamber 120 is switched to the atmospheric pressure state. After t seconds, the atmospheric pressure valve 305 is turned off (S21).
  • the vacuum valves 306 and 307 are turned on so that the extraction chamber 120 is in a vacuum state for the primary vacuum (S22), the air of the vacuum valve 306 is opened by the air pressure supplied from the compressor. Simultaneously with the discharge, the air in the extraction chamber 120 is discharged to the outside through the vacuum valve 307 and the valve (VG1), so that the pressure inside the extraction chamber 120 is gradually lowered to a constant pressure vacuum Reach the state (S23). Subsequently, the vacuum valves 306 and 307 are turned off to maintain the vacuum state (S24).
  • the first vacuum is called for t3 seconds.
  • t3 seconds may be the same as or different from the soak times t1 and t2 seconds in the advanced pressurization state.
  • the coffee powder 1a in the atmospheric pressure is increased in size and the pores are widened during the first vacuum soaking in the vacuum state. Accordingly, hot water penetrates into the pores inside the coffee powder 1c. As water penetrates the pores of the coffee powder 1c, air existing in the pores is discharged from the coffee powder 1c, and thus the secondary hot water (hereinafter, the secondary hot water is called 'coffee' because the coffee powder is sufficiently dissolved. ) Bubbles are formed.
  • the inside of the extraction chamber 120 is switched from the vacuum state to the atmospheric pressure state.
  • hot water penetrating the pores of the coffee powder 1c is discharged from the coffee powder 1c together with the soluble flavor component contained in the coffee powder 1c.
  • the coffee powder 1c may be larger than the size of the coffee powder 1a in its initial state as it is released through a process in which hot water is absorbed and then discharged. This increased coffee powder is difficult to return to its original size even when it is converted from the vacuum state to the atmospheric pressure state, and maintains the increased size through the vacuum state.
  • t3 seconds may be the same as or different from the aforementioned t1 and t2 seconds.
  • the atmospheric pressure valve 305 is turned on (S32) and the inside of the extraction chamber 120 is switched to the atmospheric pressure state. After t seconds, the atmospheric pressure valve 305 is turned off (S33).
  • a second vacuum soak is performed for t4 seconds.
  • t4 seconds may be the same as or different from the time (t3 seconds) of the first vacuum soaking.
  • water penetrates into the pores of the coffee powder as in the first vacuum soak described above.
  • t4 seconds may be the same as or different from the aforementioned t1 and t2 seconds.
  • the atmospheric pressure valve 305 is turned on (S44) and the inside of the extraction chamber 120 is switched to the atmospheric pressure state. After t seconds, the atmospheric pressure valve 305 is turned off (S45). At this time, the hot water penetrated into the pores of the coffee powder is discharged from the coffee powder together with the soluble flavor component contained in the coffee powder.
  • the coffee extraction valve 308 is turned on to extract the coffee (S46), the coffee container 143 is opened, and the coffee settling air supply valve 304 is turned on (S47) of the extraction chamber 120.
  • the air is supplied to the inside to press down the coffee in which the coffee powder contained in the extraction chamber 120 is dissolved.
  • t5 seconds is the amount of time that most of the coffee in the extraction chamber 120 can be discharged.
  • the coffee extraction valve 308 is turned off (S50).
  • the piston drive valve 309 is turned on as shown in FIG. 16 to raise the piston unit 140 (S54).
  • the coffee cake 3 is moved out of the extraction chamber 120 by a piston.
  • the piston drive valve 309 is turned off to lower the piston unit 140 to its original position (S57), and the drive cover 150 is moved from the first position to the second position (S58).
  • the above coffee extraction step has been described as being discharged from the extraction chamber by the air pressure by supplying air to the extraction chamber 120, but is not limited thereto.
  • the volume of the brewing chamber 120 gradually decreases, and the coffee inside the brewing chamber 120 passes through the filter 141 and the coffee container 143 by the pressing force of the piston unit 140, and then the coffee nozzle 107. Through the coffee extraction device 10 is discharged.
  • step S51 of turning on the atmospheric pressure valve 305 in FIG. 8 may be omitted since the step S49 ′ of turning on the atmospheric pressure valve 305 of FIG. 9 is already present.
  • the present invention can extract coffee by pneumatic pressure or raise the piston to extract coffee by supplying air into the extraction chamber.
  • the present invention can vary the concentration of coffee by adjusting the temperature and pressure of the taste of the coffee to be extracted, and thus can be extracted into a mild taste with a rich taste (bitter taste) or flavor.
  • a mild taste with a rich taste (bitter taste) or flavor.
  • the pressing force is increased and the brewing time is increased.
  • the vacuum time is increased or the pressing force is increased.
  • the increase in time means to increase the time of the step, that is, the pressing force, or to increase the total of the total times by performing the pressing force step several times.
  • the coffee extracting apparatus 10 of the present invention turns on the hot water valve 310 connected to the boiler 170 while the hot water stored inside the boiler 170 is discharged through the hot water nozzle 108. do. In this case, the discharge of hot water takes place separately from the coffee extraction.
  • the coffee extraction device 10 may be provided with an air supply valve 312 for supplying air for cleaning the extraction chamber 120.
  • an air supply valve 312 for supplying air for cleaning the extraction chamber 120.
  • a predetermined amount of water is introduced into the extraction chamber 120, and when the air supply valve 312 is turned on, the air is supplied to the coffee receiving unit 143 through the air supply line 144. Is injected.
  • the air injected into the coffee receptacle 143 may be cleaned by peeling the wet coffee powder, the residue of the coffee cake, etc. adhered to the inside of the extraction chamber 120 while turning into a bubble.
  • the piston unit 140 supplies air to the coffee container 143, and the reverse direction includes a one-way valve 140b that cannot supply air.
  • coffee precipitation, soaking and vacuum soaking are performed at least twice.
  • the coffee extraction method according to the present invention is not limited thereto, and coffee precipitation, soaking and vacuum soaking may be sequentially performed once each.
  • the control unit 400 repeatedly performs 2 to 4 times sequentially.
  • the present invention precipitates the coffee powder in hot water in a pressurized state, forcibly penetrates water into the fine pores of the coffee powder in a vacuum state, and forcibly discharges water from the fine pores of the coffee powder by switching to an atmospheric pressure state. .
  • the soluble flavor component contained in the coffee powder can be extracted from the coffee powder.

Abstract

La présente invention concerne un appareil d'extraction de café et un procédé d'extraction de café utilisant celui-ci. Le procédé d'extraction de café comprend les étapes de : placement de marc de café dans une chambre d'extraction ; injection d'eau chaude dans la chambre d'extraction ; mise sous pression de l'intérieur de la chambre d'extraction pour tremper le marc de café dans un état décanté ; conversion de l'intérieur de la chambre d'extraction dans un état de pression atmosphérique ; conversion l'intérieur de la chambre d'extraction dans un état de vide pour gonfler le marc de café et perméation de l'eau chaude dans les pores du marc de café ; et conversion de l'intérieur de la chambre d'extraction de retour dans l'état de pression atmosphérique de sorte que l'eau traversant les pores du marc de café soit évacuée du marc de café conjointement avec des composants d'arôme solubles contenus dans le marc de café.
PCT/KR2018/002214 2017-02-28 2018-02-22 Appareil d'extraction de café et procédé d'extraction de café utilisant celui-ci WO2018159958A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020170026220A KR101820018B1 (ko) 2017-02-28 2017-02-28 커피 추출 장치
KR10-2017-0094621 2017-02-28
KR10-2017-0026220 2017-02-28
KR1020170094621A KR101814535B1 (ko) 2017-07-26 2017-07-26 커피 추출 장치를 이용한 커피 추출 방법

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD919368S1 (en) 2019-06-06 2021-05-18 Sharkninja Operating Llc Blender container
USD924007S1 (en) 2019-06-06 2021-07-06 Sharkninja Operating Llc Strainer blender accessory
USD924621S1 (en) 2019-06-06 2021-07-13 Sharkninja Operating Llc Blender base
USD940500S1 (en) 2019-06-06 2022-01-11 Sharkninja Operating Llc Lid
US11304565B2 (en) 2019-03-08 2022-04-19 Sharkninja Operating Llc Vacuum food processing system
US11344148B2 (en) * 2018-03-09 2022-05-31 The Steelstone Group, LLC Beverage brewing system and method of brewing beverage
US11759056B2 (en) 2019-03-08 2023-09-19 Sharkninja Operating Llc Vacuum food processing system
US11771265B2 (en) 2019-03-08 2023-10-03 Sharkninja Operating Llc Vacuum food processing system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11221155A (ja) * 1998-02-09 1999-08-17 Fuji Electric Co Ltd コーヒーマシン
JP2004321476A (ja) * 2003-04-24 2004-11-18 Hoshizaki Electric Co Ltd 飲料抽出機
KR20110017374A (ko) * 2008-05-01 2011-02-21 번-오-매틱 코포레이션 공기압 제어가능한 음료 제조 장치, 시스템 및 방법
JP2015171364A (ja) * 2009-10-28 2015-10-01 ディーン・ジェイ・ヴァスターディス 飲料を抽出する装置
KR20160131895A (ko) * 2015-05-07 2016-11-16 오찬근 수압식 커피 추출기 및 추출방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11221155A (ja) * 1998-02-09 1999-08-17 Fuji Electric Co Ltd コーヒーマシン
JP2004321476A (ja) * 2003-04-24 2004-11-18 Hoshizaki Electric Co Ltd 飲料抽出機
KR20110017374A (ko) * 2008-05-01 2011-02-21 번-오-매틱 코포레이션 공기압 제어가능한 음료 제조 장치, 시스템 및 방법
JP2015171364A (ja) * 2009-10-28 2015-10-01 ディーン・ジェイ・ヴァスターディス 飲料を抽出する装置
KR20160131895A (ko) * 2015-05-07 2016-11-16 오찬근 수압식 커피 추출기 및 추출방법

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11344148B2 (en) * 2018-03-09 2022-05-31 The Steelstone Group, LLC Beverage brewing system and method of brewing beverage
US11304565B2 (en) 2019-03-08 2022-04-19 Sharkninja Operating Llc Vacuum food processing system
US11759056B2 (en) 2019-03-08 2023-09-19 Sharkninja Operating Llc Vacuum food processing system
US11771265B2 (en) 2019-03-08 2023-10-03 Sharkninja Operating Llc Vacuum food processing system
USD919368S1 (en) 2019-06-06 2021-05-18 Sharkninja Operating Llc Blender container
USD924007S1 (en) 2019-06-06 2021-07-06 Sharkninja Operating Llc Strainer blender accessory
USD924621S1 (en) 2019-06-06 2021-07-13 Sharkninja Operating Llc Blender base
USD925284S1 (en) 2019-06-06 2021-07-20 Sharkninja Operating Llc Blender container
USD925270S1 (en) 2019-06-06 2021-07-20 Sharkninja Operating Llc Blender
USD927256S1 (en) 2019-06-06 2021-08-10 Sharkninja Operating Llc Blender
USD940500S1 (en) 2019-06-06 2022-01-11 Sharkninja Operating Llc Lid

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