CN106264147B - Method for preparing hand-brewed coffee through capsule coffee machine and capsule coffee machine - Google Patents
Method for preparing hand-brewed coffee through capsule coffee machine and capsule coffee machine Download PDFInfo
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- CN106264147B CN106264147B CN201610897870.2A CN201610897870A CN106264147B CN 106264147 B CN106264147 B CN 106264147B CN 201610897870 A CN201610897870 A CN 201610897870A CN 106264147 B CN106264147 B CN 106264147B
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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
- A47J31/40—Beverage-making apparatus with dispensing means for adding a measured quantity of ingredients, e.g. coffee, water, sugar, cocoa, milk, tea
- A47J31/407—Beverage-making apparatus with dispensing means for adding a measured quantity of ingredients, e.g. coffee, water, sugar, cocoa, milk, tea with ingredient-containing cartridges; Cartridge-perforating means
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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
- A47J31/40—Beverage-making apparatus with dispensing means for adding a measured quantity of ingredients, e.g. coffee, water, sugar, cocoa, milk, tea
- A47J31/402—Liquid dosing devices
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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
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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
- A47J31/54—Water boiling vessels in beverage making machines
- A47J31/56—Water boiling vessels in beverage making machines having water-level controls; having temperature controls
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Abstract
The invention relates to the technical field of food processing, in particular to a method and equipment for preparing coffee with handmade taste. The hot water is injected into the capsule to steam the coffee powder in a closed manner and stop supplying water for a period of time, so that the hot water is fully contacted with the coffee powder, the coffee powder is heated to expand and release carbon dioxide, air bubble-like gaps are formed among the coffee powder, the coffee powder can form uniform filter layers by the gaps, a space required by hot water permeation is provided, and the coffee quality extracted in an extraction stage is improved. The volume of the coffee powder is not more than 80% of the volume of the capsule, so that a space is reserved for the coffee powder to expand and form gaps, and the phenomenon that the gaps among the coffee powder are not uniform due to insufficient expansion of the coffee powder in the capsule, and the extraction time and the extraction quality are influenced is prevented.
Description
Technical Field
The invention relates to the technical field of beverage preparation, in particular to a method for preparing hand-brewed coffee by capsules and a capsule coffee machine for realizing the method.
Technical Field
Along with the improvement of living standard and the adjustment of eating habits of people, the number of people drinking coffee is continuously increased, and along with the increase of the living standard, the coffee brewing machine is more and more popular with people.
Some capsule machines can realize that the capsules can be used for making drinks, but only Italian coffee or American coffee can be generally made, the coffee capsules for Italian coffee are made, the coffee powder in the coffee capsules is completely compacted, hot water is forced to pass through the compacted coffee powder by a high-pressure water pump during coffee making, so that oil and coffee components in the coffee are extracted, the making process is deep roasting for roasting coffee beans generally, the sought coffee taste is more in the aroma of the coffee oil, and the uniform coffee taste invasion direction exists for different types of coffee powder due to the action of high temperature and high pressure, so that the characteristics of different coffees cannot be well kept; the coffee capsule manufacturing process for manufacturing American coffee is also deficient in retaining the characteristic flavor of coffee due to pursuing quick manufacturing and strong mouthfeel.
On the basis, the process of the popular hand-brewed coffee (or single-product coffee) in recent years is that the coffee maker and a coffee appliance are precisely controlled, the flavor of the coffee can be well extracted, excessive extraction and foreign flavor generation can be avoided, each coffee maker has an optimal brewing mode, the flavor can be distinguished according to factors such as the current mood and actual operation of the coffee maker, the popularization is difficult in a large range, and the automation degree is too low.
Disclosure of Invention
In order to solve the technical problems, the invention provides a method for identifying capsules by a beverage preparation device, which ensures that the taste of the prepared coffee is purer and the taste of the coffee brewed by hands is even better than that of the coffee brewed by hands.
A method for preparing hand-brewed coffee by a capsule coffee machine, the capsule comprises a body and a membrane for sealing the body, coffee powder is arranged in the capsule, the volume of the coffee powder is not more than 80% of the volume of the capsule,
the method for making coffee by the capsule coffee machine comprises the following steps:
A. a heating stage, heating water to be introduced into the capsule to a preset temperature T, wherein T is more than or equal to 80 ℃ at the temperature of 95 ℃;
B. a primary water injection stage, wherein a certain amount of water is introduced into the capsule by puncturing a membrane on the capsule, and the introduced water amount is L1;
C. in the stewing stage, stopping water inflow after the stage B is finished, wherein the stopping time is t1, so that water introduced into the capsule is mixed with coffee powder to form a solution, the coffee powder is soaked and expanded, and carbon dioxide generated in the soaking process of the coffee powder is discharged, and the stopping time is t 1;
D. an extraction stage: and C, after the step C is finished, intermittently injecting water into the capsule, extracting the coffee powder in the capsule to form a coffee solution, and simultaneously leading the coffee solution out of the capsule.
Further, the amount of water L1 introduced in the step B is 0.5-1.5 times of the volume of the coffee powder.
Further, the C step stop time is 20s, t1, 10 s.
Further, the extraction stage in the step D comprises a primary quantitative water injection extraction process, the injected water amount is L2, a period of time t2 is waited after the primary water injection extraction, and then the next process is carried out, wherein 30ml is larger than or equal to L2 and is larger than or equal to 10ml, and 8s is larger than or equal to t2 and is larger than or equal to 3 s.
Further, still be equipped with water injection vortex extraction process repeatedly behind the preliminary water injection extraction process: injecting a certain amount of water into the capsule, driving the solution in the capsule to flow by the injected water so as to fully extract the coffee powder in the capsule and then leading out the capsule, injecting a certain amount of water into the capsule again after the interval time t3, and circulating the process, wherein the water injection amount is L3,10ml is more than L3 and is more than or equal to 5ml, the circulation frequency is N, 25 is more than or equal to N and is more than or equal to 10, the interval time is t3, and 8s is more than or equal to t3 and is more than or equal to 3s each time.
Further, during the water injection in step D, the pressure P inside the capsule is varied, and the range of P is 1-2 atmospheres.
Further, the temperature of the water injected in the step D is T1, and T1 is less than T.
Further, the method comprises an identification step, provided before the heating phase, of determining a predetermined temperature T according to the identified type of coffee; or the identifying step is arranged in the heating phase: the heating phase first heats the water to be introduced into the capsule to a temperature T2, T2<80 ℃, then identifies the type of capsule, determines the predetermined temperature T according to the identified type of coffee.
A capsule coffee machine comprises a shell, wherein a water injection assembly, a heating assembly, a water outlet assembly, a retainer and a main control board are arranged in the shell, and a program for controlling the preparation method is arranged in the main control board.
Furthermore, the capsule coffee machine also comprises an identification device, the main control board determines the type and the preset temperature T of coffee according to the detection result of the identification device, the water outlet assembly comprises a water outlet pricker, the water injection assembly comprises a water tank, a water pump and a water inlet pricker, the heating assembly is a boiler, and when water in the boiler is introduced into the capsule through the water inlet pricker, the water in the water tank flows into the boiler.
By adopting the method, the following technical effects are achieved:
1. the invention comprises a heating stage, a primary water injection stage, a stewing stage and an extraction stage, and the stewing stage is added, so that the coffee prepared by the method is closer to the taste of hand-brewed coffee. The hot water is injected into the capsule to steam the coffee powder in a closed manner and stop supplying water for a period of time, so that the hot water is fully contacted with the coffee powder, the coffee powder is heated to expand and release carbon dioxide, air bubble-like gaps are formed among the coffee powder, the coffee powder can form uniform filter layers by the gaps, a space required by hot water permeation is provided, and the coffee quality extracted in an extraction stage is improved. The volume of the coffee powder is not more than 80% of the volume of the capsule, so that a space is reserved for the coffee powder to expand and form gaps, and the phenomenon that the gaps among the coffee powder are not uniform due to insufficient expansion of the coffee powder in the capsule, and the extraction time and the extraction quality are influenced is prevented. The temperature of hot water for steaming in a stuffy state is 80-95 ℃, so that the full expansion of coffee powder and the full release of carbon dioxide can be guaranteed, the taste of the extracted coffee is purer, if the preset temperature is higher than 95 ℃, the coffee can cause the coffee to be over-extracted in the steaming stage, if the preset temperature is lower than 80 ℃, the coffee powder cannot be fully expanded, the taste of the extracted coffee is influenced, and for different types of coffee, different preset temperatures are selected, so that the prepared coffee is closer to the taste of hand-brewed coffee.
2. The introduced water quantity L1 is 0.5-1.5 times of the volume of the coffee powder, the water pump stops working for 10-20s, so that sufficient stewing can be guaranteed, the coffee powder is fully expanded to form uniform gaps, the coffee powder is not excessively extracted, if the water pump stops working for t1 time is less than 10s or the introduced water quantity is less than 0.5 times of the coffee powder, the stewing is not sufficient, carbon dioxide is not completely released, the taste of the extracted coffee is influenced, if the water pump stops working for t1 time is more than 20s or the introduced water quantity is more than 1.5 times of the volume of the coffee powder, the excessive extraction is easy to occur, and a user needs to wait for a long time to influence the product experience effect.
And 3, the extraction stage in the step D comprises a primary quantitative water injection extraction process, the injected water amount is L2, a period of time t2 is waited after the primary water injection extraction, and then the next process is carried out, wherein 30ml is more than or equal to L2 and more than or equal to 10ml, 8s is more than or equal to t2 and more than or equal to 3s, and 8s is more than or equal to t2 and more than or equal to 3 s. Because the water is fully contacted with the coffee powder in the stewing stage, the water in the stewing stage is completely replaced in the primary quantitative water injection and extraction process, and the influence on the coffee taste caused by the overlong contact time of the solution and the coffee powder in the capsule can be effectively prevented.
4. Still be equipped with after preliminary water injection extraction process and relapse water injection vortex extraction process: injecting a certain amount of water into the capsule, driving the solution in the capsule to flow by the injected water so as to fully extract the coffee powder in the capsule and then leading out the capsule, injecting a certain amount of water into the capsule again after the interval time t3, and circulating the process, wherein the water injection amount is L3,10ml is more than L3 and is more than or equal to 5ml, the circulation frequency is N, 25 is more than or equal to N and is more than or equal to 10, the interval time is t3, and 8s is more than or equal to t3 and is more than or equal to 3s each time. The water pumping quantity L3 is less than the water quantity in the capsule each time, so that a part of solution is discharged from the capsule in the process of repeated water injection and turbulent flow extraction; the other part of the solution is remained in the capsule, and the newly injected water flows into the capsule to drive the solution in the capsule to flow so as to be fully contacted with the coffee powder. If the amount of water pumped in each time is larger than 10ml, the solution in the capsule can be completely replaced, so that the turbulent flow effect is poor, if the amount of water pumped in each time is smaller than 5ml, the amount of solution discharged in each time is small, the extraction times and time are increased, if the interval time t3 is larger than 8s, the extraction time is too long, the coffee powder can be extracted too much, and if the interval time is smaller than 3s, the extraction is insufficient, so that the taste of the coffee is affected.
5. In the water injection process of the step D, the pressure P in the capsule is changed, and the range of P is 1-2 atmospheric pressures. When water is injected into the capsule, the pressure in the capsule is increased, the pressure promotes the solution to be discharged from the capsule, the pressure of the capsule is restored to be balanced, the pressure in the capsule is changed in the period from water injection to solution discharge, the contact between the water and the coffee powder becomes tight along with the increase of the pressure and becomes loose along with the reduction of the pressure, the extraction is more sufficient through the change of the contact between the water and the coffee powder, the extraction is carried out under the condition of micro pressure, the extraction time is shortened, if the pressure P in the capsule is less than 1 atmosphere, the capsule is easy to discharge difficultly, and if the pressure P in the capsule is more than 2 atmospheres, the coffee extraction is possibly caused, and the taste is influenced.
6. The temperature of the water injected in the D stage is T1, and T1 is less than T. Due to the characteristics of coffee, water with slightly higher temperature is used for extraction at the beginning, the water temperature is gradually reduced along with the increase of the extraction times, the coffee is prevented from being over-extracted, pure coffee is extracted, the water temperature extraction in the extraction stage is lower than that in the stewing stage, the condition of over-extraction of coffee powder is effectively prevented, and the coffee has better taste.
7. By the identification step, the type of coffee, which determines the predetermined temperature, can be effectively identified, so that different types of coffee are prepared under the most suitable conditions. The step of identifying is set in the heating stage, the heating device heats the water to the temperature T2 and then identifies, and in the process of preparing coffee, the water is heated to the temperature T from the temperature T2, so that the waiting time of a user can be effectively reduced, and the product experience effect is better.
8. A capsule coffee machine comprises a shell, wherein a water injection assembly, a heating assembly, a water outlet assembly, a retainer and a main control board are arranged in the shell, and a program for controlling the preparation method is arranged in the main control board. The preparation process of the coffee is controlled by the main control panel, so that the prepared coffee has better taste and is purer.
9. The capsule coffee machine also comprises an identification device, and the main control board determines the type of coffee and the preset temperature T according to the detection result of the identification device. Because different types of coffee have different requirements on the water temperature, the types of coffee are determined according to the detection result of the recognition device, so that different preset temperatures T are determined, different types of coffee are prepared by adopting different water temperatures, and different types of coffee can be prepared at the most proper water temperature, so that the coffee prepared by the capsule coffee machine can be used for making coffee by hand and even exceed the taste of making coffee by hand. The water injection assembly comprises a water tank, a water pump and a water inlet puncture needle, the water outlet assembly comprises a water outlet puncture needle, a membrane of the capsule is punctured by the water inlet puncture needle, so that water is injected into the capsule through the water inlet puncture needle and is discharged through the water outlet puncture needle, the heating assembly is a boiler, and when water in the boiler is introduced into the capsule through the water inlet puncture needle, the water in the water tank flows into the boiler. Because the temperature of water in the water tank is less than the boiler, consequently, reduced the temperature of boiler normal water for the temperature in vortex stage reduces, thereby makes the temperature of water of pump income capsule reduce gradually, prevents that coffee from over extracting, and the taste is better.
Drawings
Fig. 1 is a schematic structural view of a capsule coffee machine according to the first embodiment.
Fig. 2 is a flow chart of coffee preparation according to the first embodiment.
Fig. 3 is a flow chart of coffee preparation according to the second embodiment.
Fig. 4 is a schematic structural view of a capsule coffee maker according to a third embodiment.
FIG. 5 is a flow chart of coffee preparation according to the third embodiment.
FIG. 6 is a schematic diagram of the water temperature of the three extraction capsules of the embodiment as a function of time.
FIG. 7 is a flow chart of coffee preparation according to the fourth embodiment.
The device comprises a shell 1, a water tank 21, a water pump 22, a water inlet spike 23, a boiler 31, an outlet spike 41, a holder 5, a body 51, a membrane 52, an operation panel 7, a pulp outlet nozzle 8 and an identification device 9.
Detailed Description
The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
The first embodiment is as follows:
as shown in figure 1, the capsule coffee machine comprises a shell 1, a water injection assembly 2, a heating assembly, a water outlet assembly, a holder 5, a main control board, an operation panel 7 and a slurry outlet nozzle 8, wherein the water injection assembly comprises a water tank 21, a water pump 22 and a water inlet puncture needle 23, the heating assembly comprises a boiler 31, and the water outlet assembly comprises a water outlet puncture needle 41. The capsule is placed in the holder 5, the capsule comprises a body 51 and a membrane 52 for sealing the body, the capsule is filled with coffee powder, the volume of the coffee powder is not more than 80% of the volume of the capsule, in the embodiment, the volume of the coffee powder is 50% of the volume of the capsule, a motor for driving the holder 5 to move is arranged in the shell 1, the holder 5 drives the capsule to move when moving, so that the membrane of the capsule abuts against the water inlet puncture needles 23 and the outlet puncture needles 41 and is punctured by the water inlet puncture needles and the outlet puncture needles, one end of the water pump 22 is connected with the boiler, the other end of the water pump 22 is connected with the water inlet puncture needles 23, water in the boiler passes through the water inlet puncture needles 23 and is pumped into the capsule by the water pump 22, the water tank 21. The main control board 6 is internally provided with a control program, and when a user selects to prepare coffee through the operation panel 7, the main control board controls all parts of the capsule coffee machine to work according to the preset program.
As shown in fig. 2, since different kinds of coffee are prepared and the optimal preset temperatures are different, the following description will be made of a method for preparing coffee by taking a manthun coffee capsule as an example:
A. a heating phase of heating the water to be introduced into the capsule to a predetermined temperature T, T being 86 ℃;
B. in the primary water injection stage, a membrane on the capsule is punctured by a water inlet puncturing needle and a water outlet puncturing needle, and a water pump introduces a certain amount of water into the capsule at 35% of power, wherein the introduced water amount is L1, and L1 is 20 ml;
C. in the stewing stage, after the stage B is finished, water is stopped from entering, so that water introduced into the capsule and coffee powder are mixed to form a solution, the coffee powder is soaked and expanded, carbon dioxide generated in the soaking process of the coffee powder is discharged, the stopping time is t1, t1 is 15s, the water is fully contacted with the coffee powder and the generated carbon dioxide is discharged in the stopping time of the water pump, and therefore the taste of coffee extracted later is better, the taste is purer, and as the volume of the coffee powder is 50% of the volume of the capsule, a space is reserved for the soaking of the coffee powder, the phenomenon that gaps among the coffee powder are not uniform due to insufficient expansion of the coffee powder in the capsule is prevented, the extraction time and the extraction quality are influenced, and the coffee powder is prevented from expanding and bursting after a large amount of carbon dioxide is generated;
D. an extraction stage: and C, after the step C is finished, injecting L4 water into the capsule by a water pump at the power of 30%, wherein L4 is 20ml, extracting the coffee powder in the capsule to form a coffee solution, meanwhile, leading the coffee solution out of the capsule, injecting water into the capsule again after the interval of 10s, and finally, discharging the solution in the capsule by an air pump after the circulation is performed for N times, wherein N is 10. The number of cycles can be set according to actual needs, for example, N is 15, 20, 25. Finally, the solution is not limited to being discharged by an air pump, and the solution in the capsule can be basically discharged without departing from the protection scope of the invention.
The coffee prepared by the method is closer to the mouthfeel of hand-brewed coffee due to the addition of the steaming stage. The hot water is injected into the capsule to steam the coffee powder in a closed manner and stop supplying water for 15s, so that the hot water is fully contacted with the coffee powder, the coffee powder expands when being heated and releases carbon dioxide, air bubble-like gaps are formed among the coffee powder, the coffee powder can form uniform filter layers by the gaps, a space required by hot water permeation is provided, and the coffee quality extracted in the extraction stage is improved. The volume of the coffee powder is 50% of the capsule volume, thus reserving space for the coffee powder to expand and form gaps,
in the water injection process of the step D, the pressure P in the capsule is changed, and the range of P is 1-2 atmospheric pressures. When water is injected into the capsule, the pressure in the capsule is increased, the pressure promotes the solution to be discharged from the capsule, the pressure of the capsule is restored to be balanced, the pressure in the capsule is changed in the period from water injection to solution discharge, the contact between the water and the coffee powder becomes tight along with the increase of the pressure and becomes loose along with the reduction of the pressure, the extraction is more sufficient through the change of the contact between the water and the coffee powder, the extraction is carried out under the condition of micro pressure, the extraction time is shortened, if the pressure P in the capsule is less than 1 atmosphere, the capsule is easy to discharge difficultly, and if the pressure P in the capsule is more than 2 atmospheres, the coffee extraction is possibly caused, and the taste is influenced.
It is understood that the skilled person can select suitable parameters according to actual needs, such as T80 ℃, L1 30ml, L4 30ml, T1 20 s; or T95 ℃, L1 ═ 10ml, L4 ═ 10ml, T1 ═ 10 s. Generally, if T <80 ℃ may result in insufficient expansion of the coffee powder due to low temperature, and T >95 ℃ may result in over-extraction of coffee and thus taste; l1>30ml or t1>20s, over-extraction is possible, L1<10ml or t1<10s, under-steaming is possible.
It can be understood that the operation panel may be provided with a plurality of keys, each key corresponds to a different coffee type, and the main control board calls different programs according to the difference of the keys, for example, when selecting the coffee type as american coffee, the preset temperature T is selected as 92 ℃, and calls parameters and programs corresponding to the preparation of the american coffee; when the type of coffee is the Manning, the preset temperature T is selected to be 86 ℃, and parameters and programs corresponding to the preparation of the Manning are called; when the type of coffee is Columbia, the preset temperature T is selected to be 90 ℃, and parameters and programs corresponding to the preparation of Columbia are called.
It will be understood that the invention is not limited to piercing the membrane of the capsule by means of water inlet and water outlet spikes, but that it is within the scope of the invention to have the membrane ruptured by means of pressure, a lancet or the like in the prior art.
Example two:
the difference between the second embodiment and the first embodiment is that: the extraction stages differ in their steps.
The embodiment adopts the hardware structure of the capsule coffee machine of the first embodiment, the hardware structure of the capsule coffee machine is not described in detail herein, and the program set in the main control board is different from that of the first embodiment.
In this example, the coffee powder volume V of the motenin coffee capsule is 20ml,
as shown in fig. 3, the method comprises the steps of:
A. a heating phase of heating the water to be introduced into the capsule to a predetermined temperature T, T being 86 ℃;
B. in the primary water injection stage, a membrane on the capsule is punctured by a water inlet puncturing needle and a water outlet puncturing needle, and a water pump introduces a certain amount of water into the capsule at 35% of power, wherein the introduced water amount is L1, and L1 is 20 ml;
C. in the stewing stage, after the stage B is finished, stopping water inflow, mixing water introduced into the capsule with coffee powder to form a solution, soaking and expanding the coffee powder, and discharging carbon dioxide generated in the soaking process of the coffee powder, wherein the stopping time is t1, t1 is 15s, and the water is fully contacted with the coffee powder and the generated carbon dioxide is discharged in the stopping time of the water pump;
D. an extraction stage: the extraction stage comprises a primary quantitative water injection extraction process D1 and a repeated water injection turbulent flow extraction process D2.
D1. And (3) performing primary quantitative water injection extraction: the water pump injects water with 30% power as L2, L2 equals 20ml, and waits for a period of time t2 after primary water injection and extraction, and t2 equals 5 s. Because the water is fully contacted with the coffee powder in the stewing stage, the water in the stewing stage is completely replaced in the primary quantitative water injection and extraction process, and the influence on the coffee taste caused by the overlong contact time of the solution and the coffee powder in the capsule can be effectively prevented.
D2. And (3) repeatedly injecting water and disturbing flow to extract: and injecting a certain amount of water L3 into the capsule by a water pump at a power of 30%, wherein L3 is 8ml, the injected water drives the solution in the capsule to flow so as to fully extract the coffee powder in the capsule and then draw out the capsule, injecting a certain amount of water into the capsule again after the interval time t3 is 5s, and after N times of circulation, injecting 12ml into the capsule by the water pump at a power of 30%. The water injection quantity L3 is less than the water quantity in the capsule each time, so that a part of solution is discharged from the capsule in the repeated water injection turbulent flow extraction process; the other part of the solution is remained in the capsule, and the newly injected water flows into the capsule to drive the solution in the capsule to flow so as to be fully contacted with the coffee powder.
It is understood that the parameters can be adjusted reasonably by those skilled in the art according to practical situations, for example, L1 ═ 30ml, L2 ═ 30ml, t2 ═ 8s, L3 ═ 10ml, t3 ═ 8 s; or L1 ═ 10ml, L2 ═ 10ml, t2 ═ 3s, L3 ═ 5ml, and t3 ═ 3 s. In general, in order to guarantee the stewing effect, the L1 is 0.5-1.5 times of the volume of the coffee powder, the more the water injection amount L2 and L3 in the extraction stage, the longer the interval time t2 and t 3.
The water pumping quantity L3 is less than the water quantity in the capsule each time, so that a part of solution is discharged from the capsule in the process of repeated water injection and turbulent flow extraction; the other part of the solution is remained in the capsule, and the newly injected water flows into the capsule to drive the solution in the capsule to flow so as to be fully contacted with the coffee powder. If the amount of water pumped in each time is L3 which is more than 10ml, the solution in the capsule can be completely replaced, so that the turbulent flow effect is poor, if L3 is less than 5ml, the amount of solution discharged in each time is small, the extraction times and time are increased, if the interval time t3 is more than 10s, the extraction time is too long, the coffee powder can be extracted too much, and if the interval time is less than 3s, the extraction is insufficient, so that the taste of the coffee is affected. The parts not mentioned in this embodiment are the same as those in the first embodiment.
Example three:
the difference between the third embodiment and the first embodiment is that: the coffee preparation method further comprises an identification step.
As shown in fig. 4 and 5, the capsule coffee machine according to the first embodiment is further provided with an identification device 9, an identification code for the identification device to identify is provided on a membrane of the capsule, before step a, the identification device 9 detects the identification code on the capsule, the main control board 5 determines the type of coffee in the capsule and selects a preparation procedure most suitable for making the coffee according to the detection result of the identification device 9, for example, the value of the preset temperature T is determined according to the type of coffee, and when the main control board determines that the type of coffee is american coffee, the preset temperature T is selected to be 92 ℃ and the preparation procedure of american coffee is invoked; if the main control board confirms that the coffee type is the Manning, selecting the preset temperature T as 86 ℃ and calling a preparation program of the Manning coffee; therefore, the prepared coffee is purer and more delicious, and the corresponding program can be automatically selected through the identification device, so that the user operation is simpler and more humanized, and even under the condition of a plurality of product types, the operation interface is still simple.
The following description will be given taking the example of placing an american coffee capsule.
The preparation method comprises the following steps:
after placing the capsule in the capsule coffee machine, the result of recognition by the recognition means is an american capsule, so that the predetermined temperature T is chosen to be 92 c,
A. a heating stage, wherein the water to be introduced into the capsule is heated to a preset temperature T and then the heating is stopped, and the T is 92 ℃;
B. in the primary water injection stage, a membrane on the capsule is punctured by a water inlet puncturing needle and a water outlet puncturing needle, and a water pump introduces a certain amount of water into the capsule at 35% of power, wherein the introduced water amount is L1, and L1 is 10 ml;
C. in the stewing stage, after the stage B is finished, stopping water inflow, mixing water introduced into the capsule with coffee powder to form a solution, soaking and expanding the coffee powder, and discharging carbon dioxide generated in the soaking process of the coffee powder, wherein the stopping time is t1, and t1 is 10 s;
D. an extraction stage: the extraction stage comprises a primary quantitative water injection extraction process D1 and a repeated water injection turbulent flow extraction process D2.
D1. And (3) performing primary quantitative water injection extraction: the water pump injects water with 30% power as L2, L2 is 10ml, after the initial water injection and extraction, a period of time t2 is waited, and t2 is 5 s.
D2. And (3) repeatedly injecting water and disturbing flow to extract: and (3) injecting a certain amount of water L3 into the capsule by a water pump at the power of 30%, wherein L3 is 5ml, the injected water drives the solution in the capsule to flow so as to fully extract the coffee powder in the capsule and then draw out the capsule, and the certain amount of water is injected into the capsule again after the interval time t3 is 5s, so that the circulation is performed for N times, wherein N is 25.
In the step a, the boiler is heated to the preset temperature of 92 ℃, then the heating is stopped, and a corresponding program for preparing american coffee is called, when the water pump pumps water in the boiler into the capsule, the water in the water tank is pumped into the boiler, so that the water temperature in the boiler is reduced, therefore, the temperature T1 of the water injected in the step D is less than the preset temperature T, and the water temperature of the coffee powder in the extraction capsule is changed as shown in fig. 6. Because of the characteristics of coffee, the water with slightly higher temperature is extracted at the beginning, the water temperature is gradually reduced along with the increase of the extraction times, the coffee can be prevented from being over-extracted, pure coffee is extracted, the condition of over-extraction of coffee powder is effectively prevented by stopping heating of a boiler and feeding water into a water tank in real time, and the coffee has better taste.
The parts not mentioned in this embodiment are the same as those in the first embodiment.
Example four:
the difference between the fourth embodiment and the third embodiment is that: the time of the identification step is different.
The capsule coffee machine of the present embodiment is the same as the third embodiment in terms of hardware, and the control program in the main control board is different from the third embodiment.
As shown in fig. 7, the case of placing the columbia coffee capsule is taken as an example in this embodiment,
the preparation method comprises the following steps:
A. in the heating stage, the boiler heats water in the boiler to a temperature T2, for example, 70 ℃, it is understood that T2 is not limited to 70 ℃, as long as the guarantee T2 is less than the predetermined temperature T of any kind of coffee, after the capsule is placed in the holder, the identification device identifies the kind of the capsule, when the kind of the coffee is Columbia, the main control board determines that the appropriate predetermined temperature T is 90 ℃, and then the heating device heats the water from 70 ℃ to 90 ℃, so that the time of heating waiting is reduced, and the product experience effect is better.
B. In the primary water injection stage, a membrane on the capsule is punctured by a water inlet puncturing needle and a water outlet puncturing needle, and a water pump introduces a certain amount of water into the capsule at 35% of power, wherein the introduced water amount is L1, and L1 is 30 ml;
C. in the stewing stage, after the stage B is finished, stopping water inflow, mixing water introduced into the capsule with coffee powder to form a solution, soaking and expanding the coffee powder, and discharging carbon dioxide generated in the soaking process of the coffee powder, wherein the stopping time is t1, and t1 is 20 s;
D. an extraction stage: the extraction stage comprises a primary quantitative water injection extraction process D1 and a repeated water injection turbulent flow extraction process D2.
D1. And (3) performing primary quantitative water injection extraction: the water pump injects water with 30% power as L2, L2 equals 30ml, and waits for a period of time t2 after primary water injection and extraction, and t2 equals 5 s.
D2. And (3) repeatedly injecting water and disturbing flow to extract: and injecting a certain amount of water L3 into the capsule by a water pump at a power of 30%, wherein L3 is 8ml, the injected water drives the solution in the capsule to flow so as to fully extract the coffee powder in the capsule and then draw out the capsule, injecting a certain amount of water into the capsule again after the interval time t3 is 8s, and after N times of circulation, injecting 12ml into the capsule by the water pump at a power of 30%.
The parts not mentioned in this example are the same as those in the third example.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, i.e. all equivalent variations and modifications made by the present invention are covered by the scope of the claims of the present invention, which is not limited by the examples herein.
Claims (9)
1. A method for preparing hand-brewed coffee by a capsule coffee machine, the capsule comprises a body and a membrane for sealing the body, coffee powder is arranged in the capsule, the volume of the coffee powder is not more than 80% of the volume of the capsule,
the method for making coffee by the capsule coffee machine comprises the following steps:
A. a heating stage, heating water to be introduced into the capsule to a preset temperature T, wherein T is more than or equal to 80 ℃ at the temperature of 95 ℃;
B. in the primary water injection stage, a certain amount of water is introduced into the capsule by puncturing a membrane on the capsule, and the introduced water amount is L1;
C. in the stewing stage, stopping water inflow after the stage B is finished, wherein the stopping time is t1, so that water introduced into the capsule is mixed with coffee powder to form a solution, the coffee powder is soaked and expanded, and carbon dioxide generated in the soaking process of the coffee powder is discharged;
D. and D, an extraction stage, namely after the step C is finished, discontinuously injecting water into the capsule, extracting the coffee powder in the capsule to form a coffee solution, and meanwhile, leading the coffee solution out of the capsule, wherein the extraction stage in the step D comprises a primary quantitative water injection extraction process, the injected water amount is L2, waiting for a period of time t2 after the primary water injection extraction, and then entering the next process, wherein 30ml is more than or equal to L2 and more than or equal to 10ml, and 8s is more than or equal to t2 and more than or equal to 3 s.
2. The method for preparing hand-brewed, tasty coffee according to claim 1, wherein the amount of water L1 introduced in step B is 0.5-1.5 times the volume of coffee powder.
3. The method for preparing hand-brewed, tasty coffee according to claim 1, wherein the stop time in step C is 20s ≧ t1 ≧ 10 s.
4. The method of claim 1, wherein the primary water injection extraction process is followed by a repeated water injection turbulent extraction process: injecting a certain amount of water into the capsule, driving the solution in the capsule to flow by the injected water so as to fully extract the coffee powder in the capsule and then leading out the capsule, injecting a certain amount of water into the capsule again after the interval time t3, and circulating the process, wherein the water injection amount is L3,10ml is more than L3 and is more than or equal to 5ml, the circulation frequency is N, 25 is more than or equal to N and is more than or equal to 10, the interval time is t3, and 8s is more than or equal to t3 and is more than or equal to 3s each time.
5. Method for preparing a hand-brewed, tasty coffee according to claim 4, wherein during the water injection in step D, the pressure P inside the capsule is varied, P ranging from 1 to 2 atmospheres.
6. The method of preparing a hand-brewed, tasty coffee as claimed in claim 1, wherein the temperature of the water injected in step D is T1, and T1 is less than T.
7. Method for preparing a hand-brewed, tasty coffee according to claim 1, characterized in that it further comprises an identification step, provided before the heating phase, of determining the predetermined temperature T according to the identified type of coffee;
or the identifying step is arranged in the heating phase: the heating stage heats the water to be introduced into the capsule to a temperature T2, T2 is less than or equal to 75 ℃, then identifies the type of the capsule, and determines the preset temperature T according to the identified type of coffee.
8. A capsule coffee machine comprising a housing, inside which are arranged a water injection assembly, a heating assembly, a water outlet assembly, a holder for placing a capsule and a main control board, inside which is arranged a program controlling the method of preparing hand-brewed, tasty coffee according to any of claims 1-7.
9. The capsule coffee machine of claim 8, further comprising a recognition device, wherein the main control board determines the type and the predetermined temperature T of the coffee according to the detection result of the recognition device, the water outlet assembly comprises a water outlet needle, the water injection assembly comprises a water tank, a water pump and a water inlet needle, the heating assembly is a boiler, and when water in the boiler is introduced into the capsule through the water inlet needle, the water in the water tank flows into the boiler.
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| CN107156401A (en) * | 2017-04-06 | 2017-09-15 | 九阳股份有限公司 | A kind of method that use capsule beverage machine makes milk coffee drink |
| CN107468067B (en) * | 2017-07-11 | 2019-10-08 | 深圳量子深萃科技有限公司 | A kind of brewing appratus |
| CN108514334B (en) * | 2018-03-14 | 2021-01-05 | 杭州易杯食品科技有限公司 | Method for making tea drink by capsule drink machine |
| CN109730534A (en) * | 2018-11-30 | 2019-05-10 | 爱时咖啡(武汉)有限公司 | A kind of capsule coffee extracted method |
| CN110693327A (en) * | 2019-10-18 | 2020-01-17 | 青岛汉尚电器有限公司 | American coffee machine and steaming, grinding and brewing control method thereof |
| CN111110065A (en) * | 2019-12-19 | 2020-05-08 | 九阳股份有限公司 | Method for making coffee by using soybean milk machine |
| CN113040607A (en) * | 2019-12-26 | 2021-06-29 | 杭州易杯食品科技有限公司 | Method for preparing combined beverage by adopting single capsule |
| CN111700500A (en) * | 2020-06-24 | 2020-09-25 | 南京若昭商贸有限公司 | Method for brewing coffee in petal type |
| CN114224171A (en) * | 2020-09-09 | 2022-03-25 | 富港电子(徐州)有限公司 | Capsule coffee machine and automatic identification and extraction method thereof |
| CN114431706B (en) * | 2020-10-30 | 2024-04-02 | 杭州九阳小家电有限公司 | Brewing device and beverage brewing method thereof |
| CN115281525B (en) * | 2022-07-11 | 2024-05-24 | 广东新宝电器股份有限公司 | Coffee machine |
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| CN102273939B (en) * | 2011-08-04 | 2013-05-22 | 李文庆 | Coffee brewing machine and brewing method |
| CN202843342U (en) * | 2012-10-17 | 2013-04-03 | 厦门盈趣科技股份有限公司 | Capsule type coffee machine with automatic identification device |
| KR20140065610A (en) * | 2012-11-19 | 2014-05-30 | 신현봉 | Turn-table type multi pour over extraction apparatus for drip coffee |
| CN203378970U (en) * | 2013-06-08 | 2014-01-08 | 耿华 | Automatic dripping type coffee maker |
| US9949591B2 (en) * | 2015-03-30 | 2018-04-24 | Quirky Ip Licensing Llc | Pour over coffee maker system |
| CN105147110B (en) * | 2015-09-29 | 2017-12-26 | 苏州科贝尔实业有限公司 | A kind of capsule drink brewing machine that can identify capsule and its recognition methods |
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