JP2020080794A - Generation device and method for rice cooking water - Google Patents

Abstract

To provide a generation device and a method for rice cooking water which generate rice cooking water used for rice cooking, capable of generating proper rice cooking water according to a locality and a kind of rice.SOLUTION: A generation device for rice cooking water comprises: rice information acquisition means for acquiring rice information which is information including at least any of a component or a physical property value of object rice which is rice cooking object rice, a kind of the object rice, a locality or water on the locality of the object rice or water actually used for growth of the object rice; and generation means for generating the rice cooking water by adjusting the component or physical property value of the water on the basis of the rice information or information determined on the basis of the rice information.SELECTED DRAWING: Figure 5

Description

The present invention relates to an apparatus and a method for producing cooked water that produces cooked water which is water for cooking rice.

In order to cook delicious rice, it is important not only to cook rice with an appropriate amount of cooking water with appropriate heat control, but what kind of cooking water to use is also very important. From such a point of view, a method of producing cooked water in which target water, which is a predetermined plurality of kinds of components, is contained at a predetermined ratio has been known (see, for example, Patent Document 1). ).

In the technique of the above-mentioned document, the ratio of each target component containing the cooking water is set within a predetermined range. For example, the concentrations of sodium and magnesium are set in the range of 30 to 70 ppm, and the concentrations of calcium and potassium are set in the range of 0.1 to 6 ppm.

However, the state of rice varies depending on its type (for example, brand or variety) and production area, and is not always constant. Therefore, if the ratio of each target ingredient is uniformly determined, rice can be cooked deliciously in a given state. In other cases, rice may not cook deliciously.

JP 2002-369659 A

The present invention relates to an apparatus and method for producing cooked water that produces cooked water, which is water for cooking rice, and is capable of producing suitable cooked water according to the production area and type of rice. It is an object to provide an apparatus and method.

In order to solve the above problems, the rice cooking water generation device of the present invention is a rice cooking water generation device that generates rice cooking water that is water for cooking rice, and is a component or physical property value of target rice that is rice to be cooked. A rice information acquisition means for acquiring rice information that is information including at least one of the type of the target rice, the production area of the target rice or the water of the production area and the water actually used for growing the target rice; It is characterized by further comprising: a generation unit that generates the above-mentioned cooking water by adjusting a component of water or a physical property value based on rice information or information that can be acquired by the rice information.

The rice information acquisition means is a rice information detection means for detecting a component or a physical property value of target rice, a bar code information acquisition means for acquiring bar code information in which the rice information is stored, and an IC in which the rice information is stored. From an IC tag information acquisition unit that acquires tag information, the rice information detection unit, the barcode information acquisition unit, or a communication unit that enables communication with another device having the IC tag information acquisition unit via a network, It may be configured to acquire the rice information.

A generation information acquisition unit that acquires generation information, which is information that can be acquired by the rice information and that is used when generating the rice cooking water, is provided, and the generation unit includes a water component or a water component based on the generation information. It may be configured to generate the rice cooking water by adjusting physical property values.

The generation information acquisition unit is acquired from a storage unit that stores the generation information, or a communication unit that enables communication via a network with another device having the storage unit that stores the generation information. The generated information may be acquired from information and the rice information.

The generation information includes at least a part of a data table for a production area in which information on the cooking water suitable for the rice in the production area is stored for each production area of rice, and the rice information includes the target rice. The information of the production area or the information that enables the estimation of the production area may be included.

The generation information includes, for each type of rice, at least a part of information of a type data table in which information of cooking water suitable for the type of rice is stored, and the rice information includes the target rice. The information of the type or the information that enables the type to be estimated may be included.

The generating means may adjust the mineral component or physical property value of water by electrolysis.

The mineral component of water that can be adjusted by the generating means includes one or more kinds of ions of calcium ion, magnesium ion, sodium ion, potassium ion, chloride ion, nitrate ion, carbonate ion or sulfate ion. It may be included.

The generation means may adjust at least one of hardness and pH of water by electrolysis.

On the other hand, the method for producing cooked water of the present invention is a method for producing cooked water that produces cooked water that is water for cooking rice, and is a component or physical property value of the target rice that is the target rice for cooking rice, A rice information acquisition step of acquiring rice information that is information including at least one of the type, the production area of the target rice or the water of the production area and the water actually used to grow the target rice; And a production step of producing the cooking water by adjusting a component of water or a physical property value based on the information that can be acquired.

To generate rice cooking water by acquiring rice information of target rice that is rice to be cooked and adjusting the components or physical properties of water based on this rice information or information that can be acquired by the rice information It is possible to generate appropriate cooking water according to the production area and type of target rice.

It is the schematic which shows the structure of the production|generation apparatus to which this invention is applied roughly. It is a block diagram which shows the structure of a control part. It is a list showing the configuration of a production area data table. It is a list showing the configuration of a type data table. It is a flowchart which shows the process sequence of the production|generation method of the cooking water using the production|generation apparatus shown in FIG.1 and FIG.2. It is a flowchart of the production method of the cooking water which concerns on other embodiment. It is the schematic which shows the structure of the production|generation apparatus which concerns on other embodiment roughly.

FIG. 1 is a schematic diagram schematically showing the configuration of a generation device to which the present invention is applied. The rice cooking water generator (hereinafter simply referred to as “generator”) 1 switches whether or not to supply raw water, which is water from a raw water pipe P such as a water pipe, into the case 1a of the generator 1 by opening and closing the unit. A faucet 2 that adjusts the amount of water supply per hour by adjusting the opening degree, and residual chlorine, trihalomethane, bacteria, etc. in the raw water introduced from the faucet 2 by the action of activated carbon, a hollow fiber membrane, etc. A water purifying unit 3 to be removed, a calcium supplying unit 4 that enhances the conductivity of the water by adding calcium glycerophosphate, calcium lactate or the like to the purified water that is the water purified by the water purifying unit 3, and the calcium supplying unit 4 conducts electricity. The production|generation part 6 which produces|generates cooking water by adjusting the component, hardness, pH, etc. of the target water which is the water whose rate was raised.

The faucet 2 and the water purification unit 3 are connected by a supply pipe 7 which is a kind of water distribution pipe, and the raw water is supplied to the water purification unit 3 through the supply pipe 7. By the way, the main part of the water purification unit 3 is constituted by a replaceable water purification cartridge (not shown). The water purification unit 3 and the calcium supply unit 4 are connected by a water purification pipe 8 which is a kind of water distribution pipe, and the purified water is supplied to the calcium supply unit 4 via the water purification pipe 8. The calcium supply unit 4 and the production unit 6 are connected by an introduction pipe 9 which is a kind of water distribution pipe, and the target water is introduced into the production unit 6 through the introduction pipe 9.

The generation unit 6 includes an electrolysis tank 11 into which target water from an introduction pipe 9 is introduced, a diaphragm 14 for partitioning the electrolysis tank 11 so that a pair of electrode chambers 12 and 13 are formed in the electrolysis tank 11, and electrolysis. It is provided with electrodes 16 and 17 which are immersed in the water supplied into the tank 11 and arranged in the pair of electrode chambers 12 and 13, respectively. The target water supplied to the electrolytic bath 11 is electrolyzed by the voltage applied to the pair of electrodes 16 and 17, and the components thereof are adjusted to be cooked rice water.

Electric power is applied between the pair of electrodes 16 and 17 by the electric power supply circuit 18. The power supply circuit 18 can switch the value of the voltage applied between the pair of electrodes 16 and 17 and the direction thereof. The switching of the direction of the applied voltage will be described in detail. A state in which the first electrode that is the one electrode 16 is the cathode and the second electrode that is the other electrode 17 is the anode, and the first electrode 16 is the anode The power supply circuit 18 can switch the state in which the second electrode 17 serves as a cathode.

By the way, by electrolysis, in the electrode chamber on the cathode side, hydroxide ions and hydrogen are generated, while alkalinity becomes strong and the pH rises, while in the electrode chamber on the anode side, hydrogen ions and oxygen are generated, The acidity increases and the pH decreases. Further, positive ions such as calcium ions, magnesium ions, sodium ions, and potassium ions contained in the water in the electrolytic cell 11 are attracted to the cathode side, while negative ions such as chloride ions and nitrate ions. , Carbonate ions and sulfate ions are attracted to the anode.

That is, the degree of progress of electrolysis and the concentrations and constituent ratios of various components in water accompanying it can be grasped with a certain degree of accuracy if the pH value can be detected. Further, since the hardness of water can be calculated from the calcium ion concentration and the magnesium ion concentration, it can be grasped with a certain degree of accuracy by detecting the pH value.

In this way, the cooking water, which is water generated by adjusting the components, pH, and hardness by electrolysis, is discharged from the discharge pipe 19. By the way, the discharge pipe 19 is connected to the first electrode chamber, which is the electrode chamber 12 on the first electrode 16 side. In other words, cooking water is generated in the first electrode chamber 12.

On the other hand, water inside the second electrode chamber, which is the electrode chamber 13 in which the second electrode 17 is arranged, is discharged to the outside from the drain pipe 21 which is a kind of water distribution pipe. An electromagnetic valve 22 that can be opened/closed and adjusted in opening degree by an electric signal is provided in the middle of the drainage pipe 21, and opening/closing of the electromagnetic valve 22 switches whether or not water is discharged from the second electrode chamber 13 to the outside. Be done.

The introduction pipe 9 is branched toward the two electrode chambers 12 and 13, and is also branched toward the drain pipe 21 side, and the branched portion is upstream of the solenoid valve 22 in the drain pipe 21. Connected to the part. Therefore, of the target water flowing through the introduction pipe 9, the part that is not introduced into the electrolytic cell 11 is discharged to the outside from the drain pipe 21, and the control of the presence or absence of the discharge is also executed by the solenoid valve 22.

Control such as opening/closing switching and opening adjustment of the solenoid valve 22, switching of the direction of the voltage of the pair of electrodes 16 and 17 by the power supply circuit 18, and adjustment of the voltage value are made up of a microcomputer and RAM, etc. It is executed by the control unit 23 housed in. The control unit 23 has a built-in storage unit 24 that stores various kinds of information, and a communication unit 26 that enables wired or wireless communication with other devices via the network 40 and is input/output connected. (See FIG. 2).

By the way, the water purification unit 3, the calcium supply unit 4, the generation unit 6, the portion of the supply pipe 7 other than the end on the faucet 2 side, the water purification pipe 8, the introduction pipe 9, and the generation unit of the discharge pipe 19. The end portion on the 6 side, the portion other than the end portion on the discharge side of the drain pipe 21, the power supply circuit 18, the control unit 23, the communication unit 26, the water state detecting unit 29, and the flow rate detecting unit 31, It is housed inside the case 1a.

FIG. 2 is a block diagram showing the configuration of the control unit. The control unit 23 includes a power supply circuit 18 connected to the output side, a touch panel 28 in which an operation unit 28a for performing various operations and a display unit 28b for displaying various information are integrated in addition to the communication unit 26 described above. A water state detecting unit 29 for detecting the state of the target water in the first electrode chamber 12 of the electrolytic cell 11 of the generating unit 6 is connected to the input side of the control unit 23, and the faucet 2 is connected to the output unit. Flow rate detecting means 31 such as a flow rate sensor provided in the middle part of the water purification pipe 8 so that the amount of water supplied from the water can be detected, and the components or physical property values contained in the target rice which is the rice to be cooked. A rice information detecting means 32 for detecting, a bar code information acquiring means 33 such as a bar code reader or a camera for reading bar code information of a one-dimensional bar code or a two-dimensional bar code, and an IC such as an IC tag reader for reading IC tag information. The tag information acquisition means 34 is connected.

The touch panel 28 is arranged, for example, on the front side of the outer surface of the case 1a.

The water state detecting means 29 is composed of a pH sensor in this example, and can detect whether or not the target water has changed to a desired state and becomes rice cooking water, depending on the pH value of the target water. The water state detecting means 29 may be configured by a sensor that directly detects a predetermined component contained in the target water.

The rice information detecting means 32 detects information on the component or physical property value of the target rice as rice information. The target component which is a component to be detected is, for example, various mineral components (specifically, sodium, potassium, magnesium, calcium, etc.), water-soluble or insoluble dietary fiber, various vitamins, water, and Proteins, lipids, carbohydrates, etc. can be considered. Further, the target physical property value which is the physical property value to be detected is, for example, the color, surface roughness, glossiness or hardness of the target rice, the color of the target rice estimated after cooking rice, the surface roughness, the glossiness, Hardness or stickiness may be considered. The rice information detecting means 32 detects the values such as the content rates of the respective target components contained in the target rice and the respective physical properties of the target rice.

By the way, when at least one of the target component and the physical property value of rice cannot be accurately detected due to the detection accuracy of the rice information detecting means 32, etc., it is highly accurate and is installed in the information terminal 50 which is a kind of other equipment. The rice information detecting means 51 may detect at least one of each target component or physical property value of the target rice, and the detection result may be transmitted as rice information to the control unit 23 via the network 40.

Further, the information terminal 50 detects each target component or each physical property value of the target rice in advance at an arbitrary timing such as at the time of harvesting or shipping, and the detection result is used as the rice information via the network 40. Alternatively, it may be transmitted in advance to the server 60 which is a type of other device. The server 60 stores the received rice information in the rice information storage area 61a secured in a part of the storage area of its own storage unit 61. When the rice information of the target rice is needed, the control unit 23 accesses the server 60 and acquires the rice information of the target rice.

Incidentally, since a plurality of rice information is stored in the rice information storage area 61a of the server 60 at each harvesting place and each season, in order to correctly access the rice information of the target rice, the network 40 is connected to the server 60. Information for accessing via the information (for example, IP address) and information for correctly specifying the target rice from the information stored in the rice information storage area 61a of the storage unit 61 of the server 60 (for example, the harvest place) And the time) is required, and an IC tag storing access information in which these pieces of information are stored, or a sheet on which a one-dimensional or two-dimensional bar code in which the access information is embedded is printed, The rice is either housed inside the housed bag or attached to the outer surface of the bag so as to be conveyed integrally with the target rice.

In order to acquire this access information, the barcode information acquisition means 33 and the IC tag information acquisition means 34 are connected to the control section 23. The information terminal 50 is provided with a bar code information acquisition means 52 and an IC tag information acquisition means 53, and access information from the information terminal 50 to the rice information of the target rice via the network 40 or rice information of the target rice. The information itself may be transmitted to the control unit 23.

The rice information of the target rice may be included in the information stored in the IC tag or the information itself embedded in the barcode.

Then, the control unit 23 performs category classification for estimating the production area or type (for example, brand) of the target rice based on the rice information of the target rice. This categorization may be performed using a learning algorithm such as deep learning.

Each of one or more target components (specifically, mineral components, more specifically, calcium ion, magnesium ion, sodium ion, potassium ion, chloride ion, etc.) contained in the cooking water for cooking delicious rice, (Nitrate ion, carbonate ion, sulfate ion, etc.) and one or more target physical property values (specifically, hardness, pH, etc.) of the cooked water are arranged for each of the defined categories as described above. The category data table is constructed.

For example, in the example shown in FIG. 3, the production area is a category data table in which information on each target component of cooking water and each target physical property value that enables the rice to be deliciously cooked is sorted for each category of the rice production area. The use data table 24a is used. The information stored in the categories (origins) in which the target rice is classified in the data table 24a for the origin is the rice cooking water (rice cooking water suitable for the rice in the origin) that enables the target rice to be cooked deliciously. The generated information is composed of information such as the target component and each target physical property value. This generation information is used when generating the cooking water suitable for the target rice. When using an IC tag or a bar code, it is possible to include information on the origin of the target rice in the rice information.

By the way, for example, when the production area of rice is known, it is possible to cook delicious rice by using natural water or agricultural water of this production area. From such a point of view, it is considered that the cooking water suitable for rice in each production area is water such as natural water or agricultural water in each production area, and the information on the water (specifically, for each target component Target physical properties such as content rate, hardness and pH) may be set.

Further, in the example shown in FIG. 4, a category data table in which information on each target component of cooking water and each physical property value that enables the rice to be cooked deliciously is arranged for each category such as the type of rice brand. The type data table 24b is used. In this type data table 24b, the information stored in the categories (types) into which the target rice is classified enables the target rice to be cooked deliciously (each target of the cooking water suitable for that type of rice). The generated information is composed of the information of the component and each physical property value.

It should be noted that the category data table configuring this generation information is not limited to only the rice production area and type, but may be an original category that can be distinguished by artificial intelligence and the like. It stores the information of cooking water suitable for each and builds useful generation information.

As shown in FIG. 2, the production area data table 24a, the type data table 24b, or other category data tables, which are the generated information, have a storage area in a part of the storage section 24 of the control section 23 (self). Although secured, these storage areas may be secured in the storage unit 61 of the server 60, as indicated by virtual lines in the figure. In this case, the control unit 23 needs to obtain information (access information) for accessing the category data tables such as the production data table 61b and the type data table 61c in the storage unit 61 of the server 60. The information may be included in the IC tag or one-dimensional or two-dimensional barcode described above. By the way, the access information to the generated information may be included in the IC tag or the one-dimensional or two-dimensional barcode in which the rice information of the target rice is stored, or the IC tag or the one-dimensional or two-dimensional provided separately. It may be included in the barcode.

And the control part 23 produces|generates the cooking water suitable for this target rice by the production|generation part 6 based on the production|generation information acquired using the rice information of target rice by the above-mentioned principle. Specifically, the content ratio of each target component of the target water and the hardness and pH that are the target physical property values are adjusted by electrolysis to generate a suitable cooking water.

FIG. 5 is a flow chart showing the processing procedure of the method for producing cooking water using the production apparatus shown in FIGS. 1 and 2. First, the control unit 23 is one of the communication unit 26, the rice information detection units 32 and 51, the barcode information acquisition units 33 and 52, the IC tag information acquisition units 34 and 53, the storage unit 61, and the like. A rice information acquisition step of acquiring rice information of the target rice is performed via one or more of the above. This rice information acquisition step constitutes rice information acquisition means.

After the execution of the rice information acquisition step, the control unit 23 uses the rice information of the target rice to determine a category such as a production area or a type to which the target rice corresponds, and the production area stored in the storage units 24 and 61 is used. A generation information acquisition step of extracting and acquiring generation information corresponding to the category of the target rice from the category data table by referring to the category data tables such as the data tables 24a and 61b or the type data tables 24b and 61c. Run. This generation information acquisition step constitutes the generation information acquisition means.

After performing the generation information acquisition step, the control unit 23 causes the generation unit 6 to generate cooking water suitable for rice in the same category as the target rice based on the generation information acquired in the generation information acquisition step. Is executed and all steps are completed. This generation step constitutes a generation means.

According to the apparatus and method for producing cooked water configured as described above, cooked water suitable for deliciously cooking the target rice can be individually generated according to individual characteristics of the target rice.

The rice information to be stored in the IC tag or the bar code is made to correspond to the classification of the category data table such as the origin or type of the target rice, not the information on each target component or each target physical property value of the target rice. It may be set in the information. In this case, the process of estimating the rice information of the target rice and the category to which the target rice falls is omitted, and the processing can be simplified.

Next, with reference to FIG. 6, another embodiment of the present invention will be described for different parts from the above-mentioned embodiment.

FIG. 6 is a flow chart of a method for producing cooking water according to another embodiment. In the above-described embodiment, first, the rice information of the target rice is acquired, the generation information including the information of the cooking water suitable for the target rice is acquired from this rice information, and the cooking water is generated based on this generation information. However, it is possible to include information on the cooking water in the rice information itself.

For example, as the rice information, water such as natural water from the production area of the target rice or water for agricultural use, or water actually used for growing the target rice is included, and each target component and each target are compared with these waters. You may make it produce the cooking water which physical property values become close, or become the same or substantially the same.

In this case, as shown in FIG. 6, the generation information acquisition step is omitted, and the generation step is executed immediately after the rice information acquisition step is executed.

Next, with reference to FIG. 7, another embodiment of the present invention will be described for different parts from the above-mentioned embodiment.

FIG. 7 is a schematic diagram schematically showing a configuration of a generation device according to another embodiment. The production apparatus 1 shown in the same figure does not produce rice cooking water by various adjustments by electrolysis, but a plurality of types of raw water having different target components or target physical property values are mixed at a predetermined ratio to obtain desired water. It is for producing cooking water.

Explaining an example of the configuration, the production apparatus 1 includes a plurality of raw water tanks 71 for injecting raw water, one mixing tank (generation unit) 72, and a plurality of raw water tanks 71 provided for mixing from the raw water tanks 71. A supply pipe 73 for supplying raw water to the tank 72 and a discharge pipe 74 for discharging the mixed water inside the mixing tank 72 to the outside are provided.

Raw water having different target components or physical property values is injected into the plurality of raw water tanks 71. Each of the plurality of supply pipes 73 is provided with an electromagnetic valve 76 that opens and closes a flow passage therein, and a flow rate sensor (not shown). The discharge pipe 74 is also provided with a solenoid valve 77 that opens and closes the flow path therein.

By controlling the opening/closing of each of the plurality of solenoid valves 76 and detecting the flow rate of the flow rate sensor, a plurality of types of raw water are mixed at a predetermined ratio to generate a desired cooking water. The cooked water produced in the mixing tank 72 is discharged from the discharge pipe 74. The presence/absence of this discharge can be switched by opening/closing the solenoid valve 77.

According to the generating device 1 having the above configuration, the components can be adjusted only by mixing a plurality of types of raw water, and since the cooked rice water can be easily generated, the configuration can be simplified. Cost reduction is possible.

1 Generator (Cooking water generator)
1a Case 2 Faucet 3 Water purification part 4 Calcium supply part 6 Generation part 7 Supply pipe (water distribution pipe)
8 Water purification pipe (water distribution pipe)
9 Introducing pipe (water distribution pipe)
11 Electrolyzer 12 First electrode chamber (electrode chamber)
13 Second electrode chamber (electrode chamber)
14 diaphragm 16 first electrode (cathode, electrode)
17 Second electrode (anode, electrode)
18 Electric power supply circuit 19 Discharge pipe (water distribution pipe)
21 Drain pipe (water distribution pipe)
22 Solenoid valve 23 Control unit 24 Storage unit 24a Production area data table 24b Type data table 26 Communication means 28 Touch panel 28a Operation means 28b Display means 29 Water state detection means 31 Flow rate detection means 32 Rice information detection means 33 Bar code information acquisition means 34 IC tag information acquisition means 40 Network 50 Information terminal (other device)
51 rice information detection means 52 bar code information acquisition means 53 IC tag information acquisition means 60 server (other equipment)
61 storage unit 61a rice information storage unit 61b production area data table 61c type data table 71 raw water tank 72 mixing tank (generation unit)
73 Supply pipe (water distribution pipe)
74 Discharge pipe (water distribution pipe)
76 Solenoid valve 77 Solenoid valve P Raw water pipe

Claims (10)

A device for producing cooking water, which produces cooking water which is water for cooking rice,
Information that includes at least one of the component or physical property value of the target rice that is the rice to be cooked, the type of the target rice, the production area of the target rice or the water of the production area or the water actually used to grow the target rice. Rice information acquisition means for acquiring certain rice information,
A device for producing cooked water, comprising: a generating unit that generates the cooked water by adjusting a water component or a physical property value based on the rice information or information that can be acquired by the rice information. The rice information acquisition means is a rice information detection means for detecting a component or a physical property value of target rice, a bar code information acquisition means for acquiring bar code information in which the rice information is stored, and an IC in which the rice information is stored. From an IC tag information acquisition unit that acquires tag information, the rice information detection unit, the barcode information acquisition unit, or a communication unit that enables communication with another device having the IC tag information acquisition unit via a network, The rice cooking water production device according to claim 1, which is configured to acquire the rice information. A production information acquisition unit that obtains production information that is information that can be obtained by the rice information and that is used when producing the cooking water is provided.
The said production|generation means was comprised so that the said cooking water may be produced|generated by adjusting the component of water or a physical-property value based on the said production|generation information. .. The generation information acquisition unit is acquired from a storage unit that stores the generation information, or a communication unit that enables communication via a network with another device having the storage unit that stores the generation information. The rice cooking water production apparatus according to claim 3, which is configured to acquire the production information from information and the rice information. The generation information includes, for each production area of rice, at least a part of information of a production area data table in which information on cooking water suitable for rice in the production area is stored,
The rice cooking water production apparatus according to claim 3, wherein the rice information includes information on a production area of the target rice or information that enables estimation of the production area. The generation information includes, for each type of rice, at least part of information of a type data table in which information of cooking water suitable for the type of rice is stored.
The rice cooking water production apparatus according to claim 3, wherein the rice information includes information on the type of the target rice or information that allows the type to be estimated. The said production|generation means adjusts the mineral component or physical-property value of water by electrolysis, The production apparatus of cooking water in any one of Claim 1 thru|or 6. The mineral component of water that can be adjusted by the generating means includes one or more kinds of ions of calcium ion, magnesium ion, sodium ion, potassium ion, chloride ion, nitrate ion, carbonate ion or sulfate ion. It may be included.
The rice cooking water production apparatus according to claim 7. The said production|generation means adjusts at least any one of hardness and pH of water by electrolysis, The production apparatus of cooking water in any one of Claim 7 or 8. A method of producing cooked water for producing cooked water, which is water for cooking rice, comprising:
Information that includes at least one of the component or physical property value of the target rice that is the rice to be cooked, the type of the target rice, the production area of the target rice or the water of the production area or the water actually used to grow the target rice. Rice information acquisition process to acquire certain rice information,
A method of producing cooked water, comprising the step of producing the cooked water by adjusting the components or physical properties of water based on the rice information or information that can be obtained thereby.

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