Gas stove and cooking system

Abstract

The present invention provides a gas stove and a cooking system. The gas stove is equipped with a stove burner, and the stove burner has a burner head (32) with a flame port (31) provided on the outer periphery, which can prevent the soup from overflowing when cooking noodles without insufficient heating. A specific area (322) separated from other parts is provided in a part of the circumferential direction of the burner head (32). By making the ejection amount of the mixed gas from each flame port (31) located in the specific area (322) different from the ejection amount of the mixed gas from each flame port (31) located in the general area (321) which is the part other than the specific area (322), heating unevenness generation control for causing heating unevenness of the cooking container placed on the stove top can be performed. Moreover, when the noodle cooking mode is selected as the cooking mode, the heating unevenness generation control is performed.

Description

Technical Field

[0001] The present invention relates to a gas stove and a cooking system including the gas stove. The gas stove includes: a stove burner having a burner head facing a burner opening formed in a top plate and having a plurality of flame ports provided at circumferential intervals on the outer periphery; and a stove rack placed on the top plate so as to surround the burner opening. Background Art

[0002] Conventionally, regarding such a gas stove, it is known that when a noodle-boiling mode is selected as a cooking mode, the soup can be prevented from overflowing during noodle boiling by alternately switching the heating power of the stove burner between strong and weak (see, for example, Patent Document 1). In addition, when cooking noodles by heating a cooking container using a stove burner having a burner head with flame ports provided on the outer periphery, if the heating power is strong, the side surface of the cooking container is also heated, so that the soup is likely to overflow, and it is necessary to suppress the overflow of the soup by the above control.

[0003] Here, conventionally, based on the amount of water in the cooking container placed on the stove rack (calculated according to the time required for boiling), the ratio of the time of heating with strong fire to the time of heating with weak fire in the noodle-boiling mode is set. If the noodles are buckwheat noodles or the like with a low heat capacity, the soup is likely to overflow. Therefore, the ratio of the time of heating with strong fire to the time of heating with weak fire is set such that the time of heating with weak fire is longer, so that even when boiling noodles with a low heat capacity, the soup does not overflow.

[0004] Therefore, in the gas stove of the above-described conventional example, when boiling noodles such as udon noodles with a large heat capacity, the boiling state cannot be maintained for a sufficient time, and sometimes the user may feel insufficient heating depending on the user. In addition, even when boiling noodles with a small heat capacity, if the amount of noodles is too large, sometimes the user may also feel insufficient heating.

[0005] Prior Art Documents

[0006] Patent Documents

[0007] Patent Document 1: Japanese Patent Application Laid-Open No. 2014-233310 Summary of the Invention

[0008] In view of the above problems, an object of the present invention is to provide a gas stove and a cooking system including the gas stove that can prevent the soup from overflowing during noodle boiling without causing insufficient heating.

[0009] In order to solve the above problems, the first invention of the present application is a gas stove, which includes: a stove burner having a burner head facing a burner opening formed in a top plate and provided with a plurality of flame ports at circumferential intervals on its outer periphery; and a stove rack placed on the top plate so as to surround the burner opening. The gas stove is characterized in that a specific area separated from other parts is provided in a part of the circumferential direction of the burner head, so that the ejection amount of the mixed gas from each flame port located in the specific area is different from the ejection amount of the mixed gas from each flame port located in a general area which is a part other than the specific area, and heating unevenness generation control capable of causing heating unevenness of a cooking container placed on the stove rack can be performed.

[0010] In addition, the second invention of the present application is a cooking system, which includes the gas stove of the first invention. The cooking system is characterized in that the cooking system is provided with a foaming detection mechanism capable of detecting foaming in the cooking container. When the noodle boiling mode is selected as the cooking mode, heating unevenness generation control is performed to make the ejection amount of the mixed gas from each flame port located in the specific area smaller than the ejection amount of the mixed gas from each flame port located in the general area. When performing this heating unevenness generation control, when the area ratio of the foaming part in the cooking container detected by the foaming detection mechanism to the whole cooking container is equal to or more than a specified threshold value, control is performed to reduce the ejection amount of the mixed gas from each flame port located in the general area.

[0011] According to the gas stove of the first invention, when boiling noodles, by performing heating unevenness generation control, unevenness of bubbles can be generated in the cooking container during the boiling process. Moreover, the bubbles do not boil in the whole cooking container but generate a convection in which the bubbles escape to the part where fewer bubbles are generated. Therefore, although the cooking container is heated by a stove burner having a burner head with flame ports provided on its outer periphery, the boiling state can be maintained and the overflow of the soup can be effectively prevented. And different from the conventional gas stoves that alternately switch between strong fire and weak fire, in the case of boiling noodles with a large heat capacity and in the case of boiling a large amount of noodles with a small heat capacity, it is possible to prevent the overflow of the soup during noodle boiling without causing insufficient heating.

[0012] In addition, based on the gas stove of the first invention, an operation unit is provided, which operates the stove burner. Preferably, a specific area is provided in a portion of the burner head close to the operation unit. During the control of uneven heating, the ejection amount of the mixed gas from each flame port located in the specific area is made smaller than the ejection amount of the mixed gas from each flame port located in the general area. Accordingly, the heat influence on the vicinity of the operation unit caused by the flame of the stove burner and the heat influence caused by steam generated from the cooking container can be weakened, so that the user can be prevented from feeling heat when operating the operation unit.

[0013] In addition, according to the cooking system of the second invention, when the area ratio of the foaming part in the cooking container to the whole cooking container is equal to or greater than a threshold value, by reducing the ejection amount of the mixed gas from each flame port located in the general area, the occurrence of soup overflow can be automatically and effectively prevented.

[0014] In addition, based on the cooking system of the second invention, preferably, when the noodle boiling mode is selected as the cooking mode, the ejection amount of the mixed gas from each flame port located in the general area is set to a first set amount smaller than the maximum amount, and the ejection amount of the mixed gas from each flame port located in the specific area is set to a second set amount smaller than the first set amount, and thus the control of uneven heating generation is started, and the following control is performed: until the area ratio of the foaming part in the cooking container detected by the foaming detection mechanism to the whole cooking container reaches the above-mentioned threshold value, the ejection amount of the mixed gas from each flame port located in the general area is increased step by step from the first set amount. Accordingly, even in a state where it is easy to cause insufficient heating due to a large cooking container or a large amount of noodles, etc., the soup overflow can be prevented, and the heating amount of the stove burner can be increased to prevent insufficient heating.

[0015] In this case, preferably, in a state where the area ratio of the foaming part in the cooking container detected by the foaming detection mechanism does not reach the above-mentioned threshold value, when the ejection amount of the mixed gas from each flame port located in the general area increases to a third set amount greater than the above-mentioned first set amount, the following control is performed: until the area ratio of the foaming part in the cooking container detected by the foaming detection mechanism reaches the above-mentioned threshold value, the ejection amount of the mixed gas from each flame port located in the specific area is increased step by step from the above-mentioned second set amount. Accordingly, insufficient heating can be more reliably prevented.

[0016] In addition, preferably, in a state where the ejection amount of the mixed gas from each flame port located in a specific area is increased and is greater than the above-mentioned second set amount, when the area ratio of the foaming part in the cooking container detected by the foaming detection mechanism reaches the above-mentioned threshold or more, first, the ejection amount of the mixed gas from each flame port located in the specific area is reduced to the second set amount, and then, when the area ratio of the foaming part in the cooking container detected by the foaming detection mechanism is still the above-mentioned threshold or more, control is performed to reduce the ejection amount of the mixed gas from each flame port located in the general area to a specified fourth set amount that is less than the first set amount. Accordingly, the reliability of preventing the soup from overflowing is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view showing a gas stove and a cooking system according to an embodiment of the present invention.

[0018] Figure 2 is taken along Figure 1 section II-II of FIG. and is an enlarged cross-sectional view of the main part.

[0019] Figure 3 is an exploded perspective view of a stove burner included in the gas stove of the embodiment.

[0020] Figure 4 is a perspective view observed from obliquely below a range hood provided in the cooking system of the embodiment.

[0021] Figure 5 is a flowchart showing the content of noodle cooking control using the cooking system of the embodiment.

[0022] REFERENCE SIGNS LIST

[0023] 1... Gas stove, 3... Stove burner, 31... Flame port, 32... Burner head, 321... General area, 322... Specific area, Q1... General area ejection amount (ejection amount of the mixed gas from each flame port located in the general area), Q2... Specific area ejection amount (ejection amount of the mixed gas from each flame port located in the specific area), YQ1... First set amount, YQ2... Second set amount, YQ3... Third set amount, YQ4... Fourth set amount, Ra... Foaming rate (area ratio of the foaming part in the cooking container to the whole cooking container), YRa... Threshold value. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Refer to Figure 1 and Figure 2, the gas stove 1 according to an embodiment of the present invention is an in-built stove configured such that the stove main body 2 is placed in a stove opening CTa formed in the countertop CT of an integrated cabinet, and it includes two stove burners 3 and 3 on the left and right. Each stove burner 3 has a burner head 32, and the burner head 32 faces each burner opening 4a formed in a top plate 4 that covers the open upper surface of the stove main body 2, and a plurality of flame ports 31 are provided on the outer periphery at circumferential intervals. Each stove grate 5 is placed on the top plate 4 so as to surround each burner opening 4a. In addition, an operation panel 6 as an operation unit is provided at the upper part of the front surface of the integrated cabinet in front of the gas stove 1. On the operation panel 6, there are provided: an ignition and extinguishing button 61 for each stove burner 3 and a freely operable operation board 62 ( Figure 1 is in an entry state), and the operation board 62 has various switches including selection switches for cooking modes of each stove burner 3.

[0025] Referring again to Figure 3 , in a part of the circumference of the burner head 32 of each stove burner 3, that is, in the 1 / 4 circumference part near the front side of the operation panel 6, a specific area 322 is provided which is separated from a general area 321 which is other circumferential parts of the burner head 32. More specifically, the burner head 32 is configured to include: an annular lower head member 32L with a closed lower surface; an inner and outer double cylindrical intermediate head member 32M with both upper and lower surfaces open; and an annular upper head member 32U with a closed upper surface. A plurality of flame ports 31 are provided on the outer periphery of the upper head member 32U. Partition ribs 32La and 32La are provided on the lower head member 32L on both sides of the specific area 322, and partition ribs 32Ma and 32Ma are also provided on the intermediate head member 32M on both sides of the specific area 322. In addition, although not shown in the figure, partition ribs are also provided on the upper head member 32U on both sides of the specific area 322. And the intermediate head member 32M is overlapped on the lower head member 32L, so that the lower ends of the ribs 32Ma of the intermediate head member 32M abut against the upper ends of the ribs 32La of the lower head member 32L. Further, the upper head member 32U is overlapped on the intermediate head member 32M, so that the lower ends of the ribs of the upper head member 32U abut against the upper ends of the ribs 32Ma of the intermediate head member 32M, thereby separating the specific area 322 of the burner head 32 from the general area 321.

[0026] The lower ends of a plurality of struts 32Lb that are vertically suspended from the lower side head member 32L are inserted into a plurality of concave holes 21a formed in a burner holder 21 fixed within the stove body 2, thereby supporting the burner head 32 on the burner holder 21. Further, a pair of first mixing tube portions 331, 331 are vertically suspended from the lower side head member 32L and extend downward from two portions of the general area 321; and a second mixing tube portion 332 extends downward from the central portion of the specific area 322. Also, a pair of first nozzle portions 341, 341 are provided on the burner holder 21 and face the lower end openings of the two first mixing tube portions 331, 331; and a second nozzle portion 342 faces the lower end opening of the second mixing tube portion 332. Further, a pair of first guide plate portions 32Mb1, 32Mb1 are provided on the intermediate head member 32M and are opposed to the upper end openings 331a, 331a of the two first mixing tube portions 331, 331 with a slight gap therebetween; and a second guide plate portion 32Mb2 is opposed to the upper end opening 332a of the second mixing tube portion 332 with a slight gap therebetween.

[0027] When fuel gas is ejected from each first nozzle portion 341, the fuel gas collides with each first guide plate portion 32Mb1 through each first mixing tube portion 331 and diffuses into the general area 321, and primary air is sucked in from the lower end opening of each first mixing tube portion through the resulting radial Venturi effect. Then, the mixed gas (a mixed gas of fuel gas and primary air) generated within the first mixing tube portion 331 is supplied to the general area 321, and this mixed gas is ejected and burned from each flame port 31 located in the general area 321. Also, when fuel gas is ejected from the second nozzle portion 342, the fuel gas collides with the second guide plate portion 32Mb2 through the second mixing tube portion 332 and diffuses into the specific area 322, and primary air is sucked in from the lower end opening of the second mixing tube portion through the resulting radial Venturi effect. Then, the mixed gas generated within the second mixing tube portion 332 is supplied to the specific area 322, and this mixed gas is ejected and burned from each flame port 31 located in the specific area 322.

[0028] A safety valve 351 and an on-off valve 352 are provided in the gas supply path 35 for each stove burner 3. The safety valve 351 is opened under the control of a controller 7 that is input with an operation signal of an ignition / extinguishing button 61 during an ignition operation using the ignition / extinguishing button 61, and is closed under the control of the controller 7 when a fire is detected by a decrease in the electromotive force of a thermocouple 37 described later, when an overheat of a cooking container is detected by a bottom pot temperature sensor 38 described later, etc. Also, the on-off valve 352 is opened under the control of the controller 7 during an ignition operation based on the ignition / extinguishing button 61, and is closed under the control of the controller 7 during an extinguishing operation based on the ignition / extinguishing button 61.

[0029] A communication path 21b communicating with the two first gas nozzles 341, 341 is formed in the burner holder 21. The gas supply path 35 branches on the downstream side of the on-off valve 352 to form: a first branch path 351 connected to the two first gas nozzles 341, 341 via the communication path 21b; and a second branch path 352 connected to the second gas nozzle 342. A first flow rate regulating valve 3531 and a second flow rate regulating valve 3532 controlled by the controller 7 are provided in the first branch path 351 and the second branch path 352, respectively. Moreover, the ejection amounts of the mixed gas from each flame port 31 located in the general area 321 and the ejection amounts of the mixed gas from each flame port 31 located in the specific area 322 can be adjusted in 9 grades from a minimum of "1" to a maximum of "9" by using the first flow rate regulating valve 3531 and the second flow rate regulating valve 3532, respectively.

[0030] Each stove burner 3 is provided with: an ignition electrode 36 that generates a spark under the control of the controller 7 during an ignition operation based on the ignition and extinguishing button 61; a thermocouple 37 as a flame monitoring element; and a bottom temperature sensor 38 that abuts against the bottom surface of the cooking container placed on the stove stand 5 to detect its temperature. In addition, a cover 39 that covers the burner opening 4a from above is externally inserted into the intermediate head member 32M. Furthermore, as Figure 4 shown, the cooking system of the present embodiment includes a pair of left and right foaming detection mechanisms 8, 8, which are arranged on the lower surface of the range hood RH located above the countertop CT and include CCD cameras. Each foaming detection mechanism 8 photographs the cooking container placed on each stove stand 5 in a top view, and detects the foaming situation in the cooking container through image analysis. Then, the detection result is sent to the controller 7. In addition, signals from various switches provided on the operation panel 62 are also input into the controller 7.

[0031] Here, in the case of cooking noodles by heating a cooking vessel using a stove burner 3 having a burner head 32 with flame ports 31 provided on the outer periphery, if strong fire is used, the side surface of the cooking vessel is also heated, making it easy for the soup to overflow. On the other hand, in the gas stove 1 of the present embodiment, during the combustion process of the stove burner 2, the ejection amount of the mixed gas from each flame port 31 located in the specific area 322 of the burner head 32 (hereinafter referred to as the specific area ejection amount) Q2 is made different from the ejection amount of the mixed gas from each flame port 31 located in the general area 321 (hereinafter referred to as the general area ejection amount) Q1, whereby it is possible to execute heating unevenness generation control that causes heating unevenness in the cooking vessel placed on the stove top 5. If heating unevenness generation control is executed during noodle cooking, unevenness of bubbles can be generated during the boiling process in the cooking vessel. And, the bubbles do not boil throughout the entire cooking vessel but rather generate a convection in which the bubbles disperse toward the part where a small amount of bubbles are generated. Therefore, although the cooking vessel is heated using the stove burner 3 having the burner head 32 with flame ports 31 provided on the outer periphery, the boiling state can be maintained, and the overflow of the soup can be effectively prevented. In addition, different from the conventional gas stoves that alternately switch between strong fire and weak fire, in the case of cooking noodles with a large heat capacity and in the case of cooking a large amount of noodles with a small heat capacity, it is possible to prevent the soup from overflowing during noodle cooking without causing insufficient heating.

[0032] In addition, in the heating unevenness generation control, the specific area ejection amount Q2 can also be set to be greater than the general area ejection amount Q1. However, as in the present embodiment, when the specific area 322 is provided in the front side portion of the burner head 32 close to the operation panel 6, it is preferable to set the specific area ejection amount Q2 to be less than the general area ejection amount Q1. Thereby, it is possible to weaken the thermal influence on the vicinity of the operation panel 6 caused by the flame of the stove burner 3 and the thermal influence caused by steam etc. generated from the cooking vessel. Therefore, it is possible to avoid the user feeling heat when operating operation components such as the ignition and extinguishing button 61 provided on the operation panel 6.

[0033] Hereinafter, with reference to Figure 5, the noodle boiling control performed by the controller 7 when the noodle boiling mode is selected as the cooking mode will be described. In the noodle boiling control, first, in STEP1, it is determined whether an ignition operation has been performed using the ignition / off button 61. When the ignition operation has been performed, in STEP2, the stove burner 3 is ignited. Next, it enters STEP3, and based on the detected temperature of the bottom temperature sensor 38, it is determined whether the water in the cooking container has boiled. It should be noted that until boiling, both the general area ejection amount Q1 and the specific area ejection amount Q2 are set to the maximum amount of "9". When it has boiled, it enters STEP4, and the noodle boiling time YT is set based on the time required until boiling, etc. Next, in STEP5, it is indicated by sound or the like to put noodles into the cooking container, and then, in STEP6, it is determined whether the noodle boiling start switch has been turned on.

[0034] When the start switch is turned on, it enters STEP7, sets the general area ejection amount Q1 to a specified first setting amount YQ1 (e.g., "4") less than the maximum amount "9", and sets the specific area ejection amount Q2 to a second setting amount YQ2 (e.g., "2") less than the first setting amount YQ1, thereby starting the heating unevenness generation control. In addition, in STEP8, the noodle boiling timer is started, and in STEP9, the determination timer is started. Next, it enters STEP10, and determines whether the elapsed time T of the noodle boiling timer is less than the noodle boiling time YT. Then, if T < YT, it enters STEP11, and determines whether the area ratio (hereinafter referred to as the foaming rate) Ra of the foaming part (the part that turns white due to foaming) detected by the foaming detection mechanism 8 in the cooking container with respect to the entire cooking container reaches a specified threshold value YRa (e.g., 90%) or more.

[0035] If Ra < YRa, it enters STEP12, and determines whether the elapsed time t of the determination timer has reached 90 seconds or more. Then, when t ≥ 90 seconds, it enters STEP13, and determines whether the general area ejection amount Q1 has increased to a specified third setting amount YQ3 (e.g., the maximum "9") greater than the first setting amount YQ1. If Q1 < YQ3, in STEP14, control is performed to increase the general area ejection amount Q1 by one step, and in STEP15, the increased ejection amount is stored as the general area ejection amount storage value MQ1. Then, in STEP19, the determination timer is reset, and then it returns to STEP9. In addition, when it is determined in STEP13 that Q1 = YQ3, it enters STEP16, and determines whether the specific area ejection amount Q2 has increased to the third setting amount YQ3. Then, if Q2 < YQ3, in STEP17, control is performed to increase the specific area ejection amount Q2 by one step, and in STEP18, the increased ejection amount is stored as the specific area ejection amount storage value MQ2. Then, in STEP19, the determination timer is reset, and then it returns to STEP9.

[0036] Therefore, until the foaming rate Ra reaches the threshold value YRa, control is performed to stepwise increase the general area ejection amount Q1 from the first set amount YQ1 to the third set amount YQ3 at a rate of increasing one step every 90 seconds. In the case where the foaming rate Ra does not reach the threshold value YRa even when the general area ejection amount Q1 is increased to the third set amount YQ3, control is performed to stepwise increase the specific area ejection amount Q2 from the second set amount YQ2 to the third set amount YQ3 at a rate of increasing one step every 90 seconds. Accordingly, even in a state where it is easy to cause insufficient heating due to a large cooking container or a large amount of noodles, etc., the heating amount of the stove burner 3 can be increased to prevent insufficient heating.

[0037] When the foaming rate Ra reaches the threshold value YRa or more, it proceeds from STEP11 to STEP20, and the determination timer is reset and started. Next, in STEP21, it is determined whether the elapsed time T of the noodle cooking timer is less than the noodle cooking time YT. Then, if T < YT, in STEP22, it is determined whether the elapsed time t of the determination timer has reached 5 seconds or more. When t ≥ 5 seconds, in STEP23, it is determined whether the specific area ejection amount Q2 exceeds the second set amount YQ2. If Q2 > YQ2, in STEP24, the specific area ejection amount Q2 is decreased to the second set amount YQ2. Then, in STEP25, it is determined whether the foaming rate Ra reaches the threshold value YRa or more. If Ra < YRa, it returns to STEP19. However, if Ra ≥ YRa, it returns to STEP21. Then, when it enters STEP23 again, it is determined as "NO", and thus, it proceeds to STEP26, and control is performed to decrease the general area ejection amount Q1 to a specified fourth set amount YQ4 (for example, "2") that is less than the first set amount YQ1. Thereby, the occurrence of soup overflow can be automatically and effectively prevented.

[0038] When the general area ejection amount Q1 is reduced to the fourth set amount YQ4, next, it enters STEP27 to determine whether the foaming rate Ra is equal to or less than a specified set value YRaL (for example, 20%) that will not cause the soup to overflow. Then, the following process is repeated: If Ra > YRaL, it is determined in STEP28 whether the elapsed time T of the noodle cooking timer is less than the noodle cooking time YT. If T < YT, it returns to STEP27. When the foaming rate Ra is equal to or less than the set value YRaL, control is performed in STEP29 to restore the general area ejection amount Q1 and the specific area ejection amount Q2 to the general area ejection amount storage value MQ1 and the specific area ejection amount storage value MQ2, respectively, and then it returns to STEP19. When it is determined in STEP10, STEP21, and STEP28 that the elapsed time T of the noodle cooking timer has reached the noodle cooking time YT, it enters STEP30 to turn off the stove burner 3 and end the noodle cooking control.

[0039] In addition, when the cooking container is a cooking container with a large heat capacity such as a casserole and the cooking container is heated to a level where little heat needs to be provided, and when ingredients that are likely to boil (such as salt) are placed in the cooking container midway, a series of processes from STEP19 through STEP9 - STEP11, STEP20 - STEP28 to STEP29 are performed in a short time. Therefore, although not shown, when the processes from STEP19 to STEP29 are performed for a specified short time (for example, 10 seconds), the general area ejection amount Q1 and the specific area ejection amount Q2 can be set to amounts one level less than the general area ejection amount storage value MQ1 and the specific area ejection amount storage value MQ2, respectively.

[0040] As described above, the embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited thereto. For example, in the above embodiments, a specific area 322 is provided at one position in the circumferential direction of the burner head 32. However, a plurality of specific areas can also be provided dispersedly in the circumferential direction. In addition, the gas stove 1 in the above embodiments is an in-built stove, but a tabletop stove provided on a gas table can also apply the present invention.

Claims

1. A cooking system includes a gas stove, and the gas stove includes: a stove burner having a burner head facing a burner opening formed in a top plate and having a plurality of flame ports provided at circumferential intervals on the outer periphery; and a burner grate placed on the top plate so as to surround the burner opening. A specific area separated from other parts is provided in a circumferential part of the burner head, so that the ejection amount of the mixed gas from each flame port located in the specific area is different from the ejection amount of the mixed gas from each flame port located in a general area which is a part other than the specific area, and uneven heating generation control capable of causing uneven heating of a cooking container placed on the burner grate can be performed. The cooking system is characterized in that the cooking system includes a foaming detection mechanism capable of detecting foaming in the cooking container. When a noodle-boiling mode is selected as a cooking mode, the uneven heating generation control is performed such that the ejection amount of the mixed gas from each flame port located in the specific area is smaller than the ejection amount of the mixed gas from each flame port located in the general area. When performing this uneven heating generation control, when the area ratio of the foaming part in the cooking container detected by the foaming detection mechanism to the entire cooking container reaches a specified threshold or more, control is performed to reduce the ejection amount of the mixed gas from each flame port located in the general area.

2. The cooking system according to claim 1, characterized in that when a noodle-boiling mode is selected as a cooking mode, the ejection amount of the mixed gas from each flame port located in the general area is set to a specified first setting amount smaller than the maximum amount, and the ejection amount of the mixed gas from each flame port located in the specific area is set to a second setting amount smaller than the first setting amount, thereby starting the uneven heating generation control, and performing the following control: until the area ratio of the foaming part in the cooking container detected by the foaming detection mechanism to the entire cooking container reaches the threshold, the ejection amount of the mixed gas from each flame port located in the general area is increased step by step from the first setting amount.

3. The cooking system according to claim 2, characterized in that in a state where the area ratio of the foaming part in the cooking container detected by the foaming detection mechanism does not reach the threshold, when the ejection amount of the mixed gas from each flame port located in the general area increases to a specified third setting amount larger than the first setting amount, the following control is performed: until the area ratio of the foaming part in the cooking container detected by the foaming detection mechanism reaches the threshold, the ejection amount of the mixed gas from each flame port located in the specific area is increased step by step from the second setting amount.

4. The cooking system according to claim 3, characterized in that In a state where the ejection amount of the mixed gas from each flame port located in the specific area is increased and greater than the second set amount, when the area ratio of the foaming part in the cooking container detected by the foaming detection mechanism reaches the threshold or more with respect to the entire cooking container, first, the ejection amount of the mixed gas from each flame port located in the specific area is reduced to the second set amount, and then when the area ratio of the foaming part in the cooking container detected by the foaming detection mechanism is still the threshold or more, control is performed to reduce the ejection amount of the mixed gas from each flame port located in the general area to a specified fourth set amount that is less than the first set amount.

Images