Cooking device and method for making roasted sweet potatoes

Abstract

Conventional sweet potato roasting appliances sometimes feature double-walled casings or insulation to improve energy efficiency and maintain high temperatures during cooking. However, these structures increase the weight of the appliance, making it difficult to carry and increasing manufacturing costs. [Solution] A heating cooker equipped with a detachable fire starter inside the casing, wherein the fire starter comprises a bottom plate, a cylindrical part, and a handle, and has multiple air holes on the circumferential surface of the cylindrical part, the casing consists of an opening at the top, a bottom surface, and a cylindrical part, and is equipped with a detachable lid attached to the opening and a cooking utensil setting net inside the casing, and has air holes on the circumferential surface of the cylindrical part of the casing, the lid is a lid with a flat horizontal surface at the center of the lid, and is fixed inside the casing, can be inserted into one of the air holes on the circumferential surface of the fire starter, and is equipped with an air blower pipe fixed to an air outlet on the circumferential surface of the casing, and a method for producing roasted sweet potatoes using the heating cooker is provided.

Description

Technical Field

[0001] The present invention relates to a cooking appliance and a method for manufacturing baked sweet potatoes using the cooking appliance.

Background Art

[0002] When heating sweet potatoes, it is necessary to maintain a high temperature inside the sweet potatoes for a long time. Thereby, starch changes into sugar, resulting in sweet baked sweet potatoes. Conventional baked sweet potato cookers include various types such as a large pot type using firewood, a pot-baking type using charcoal, a gas type, and an electric oven type. Among them, in the pot-baking type cooker using charcoal, in order to maintain a high temperature state, an example of making the housing a double structure (Patent Document 1) and an example of providing a heat insulating material in the housing (Patent Document 2) are known.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] Conventional baked sweet potato cooking appliances have cases where the housing is made into a double structure or provided with a heat insulating material in order to improve energy efficiency and maintain a high temperature during the cooking of baked sweet potatoes. However, due to these structures, there are problems that the weight of the cooking appliance increases, it becomes difficult to carry, and the manufacturing cost of the cooking appliance also increases. Furthermore, there is also a problem that operations such as igniting and extinguishing charcoal are complicated in the conventional ones.

Means for Solving the Problems

[0005] The present invention aims to provide a heating and cooking device and a method for producing roasted sweet potatoes that have a simple and lightweight structure, can maintain a sufficient cooking temperature, and are easy to ignite and extinguish.

[0006] The present invention relates to a cooking appliance equipped with a detachable fire starter inside the casing, the fire starter comprising a bottom plate portion, a cylindrical portion, and a handle portion, and having a plurality of air holes on the circumferential surface of the cylindrical portion, the casing comprising an opening at the top, a bottom portion, and a cylindrical portion, a detachable lid attached to the opening and a cooking utensil setting net inside the casing, and having air holes on the circumferential surface of the cylindrical portion of the casing, the lid being a lid with a flat horizontal surface at its center, fixed inside the casing, and having an air vent portion that can be inserted into one of the air holes on the circumferential surface of the fire starter and fixed to an air outlet on the circumferential surface of the casing.

[0007] The heating device of the present invention is characterized in that the volume of the ignition device is 0.01 times or more and 0.5 times or less the volume of the casing.

[0008] The heating appliance of the present invention is further characterized by having a pot on top of the lid of the housing.

[0009] The heating appliance of the present invention is characterized by having through holes in the lid and through holes in the bottom of the pot.

[0010] The heating appliance of the present invention is characterized in that the air holes on the circumferential surface of the cylindrical part of the housing are located below the cooking utensil placement net.

[0011] The present invention is characterized by its ability to produce well-baked sweet potatoes by heating them over charcoal using the heating device. [Effects of the Invention]

[0012] The heating cooker of the present invention, by incorporating a detachable ignition starter from the casing, allows for easy ignition, heat adjustment, and extinguishing. It has a simple and lightweight structure, yet can maintain a sufficient cooking temperature and provides a lightweight cooking appliance. [Brief explanation of the drawing]

[0013] [Figure 1] It is a perspective view of a cooking appliance according to the present invention. [Figure 2] It is a perspective sectional view showing a state where baked sweet potatoes are being manufactured using the cooking appliance according to the present invention. [Figure 3] It is a front view when a pot is installed on the upper part of the cooking appliance according to the present invention. [Figure 4] It is a view showing a state where a blower is inserted into the air duct part and air is being blown to the ignition device. [Figure 5] It is a view showing a state where a gas burner is inserted into the air duct part and charcoal is being ignited. [Figure 6] It is a view showing a state where the ignition device is placed in a fire extinguishing kettle.

Mode for Carrying Out the Invention

[0014] Hereinafter, embodiments of the present invention will be described.

[0015] As shown in FIGS. 1 and 2, the housing 10 is composed of an upper opening 11, a bottom surface portion 12, and a cylindrical portion 13. The opening 11 is provided with a detachable lid 20, and the lid 20 has a flat horizontal plane at its center.

[0016] Furthermore, the lid 20 may have a through-hole 23. By having the through-hole 23, excess steam generated from the sweet potatoes can be released. The through-hole 23 of the lid 20 may be one or a plurality. At least one through-hole 23 is preferably located at the center of the lid 20.

[0017] A cooking ingredient installation net 14 is provided inside the housing. The cooking ingredient installation net 14 may be in one stage or may have a plurality of stages of two or more stages, and a large amount of cooking ingredients can be cooked at once. A part of the cooking ingredient installation net 14 may be deformable so as to be foldable, which makes it easier to take out the ingredients on the lower cooking ingredient installation net.

[0018] The cooking ingredient placement net 14 is supported by a plurality of protrusions 15 for the cooking ingredient placement net provided on the inner peripheral surface of the cylindrical portion 13 of the housing 10. The protrusions 15 protrude approximately 1 to 3 cm inward from the inner peripheral surface of the housing and support the outer peripheral portion of the cooking ingredient placement net 14. When installing multiple stages of the cooking ingredient placement net 14, the protrusions 15 are provided at different height positions on the inner peripheral surface of the housing to individually support each stage of the cooking ingredient placement net 14. The height interval between the protrusions is 5 to 15 cm, preferably 8 to 12 cm. It is preferable to fix the protrusions 15 so that the lowermost cooking ingredient placement net 14 is installed above half the height of the housing. Thereby, it is possible to cook the taro in a sufficiently high-temperature environment.

[0019] The cylindrical portion circumferential surface of the housing has an air outlet 18. The air outlet 18 is provided at the lower part of the cylindrical portion circumferential surface of the housing and is connected to the air duct portion 17 inside the housing. The tip of the air duct portion 17 may protrude outside the circumferential surface of the housing from the air outlet 18. A cap or the like may be provided at the tip of the air duct portion 17 protruding outside the circumferential surface of the cylindrical portion of the housing, and thereby the air volume can be adjusted. The air duct portion 17 is inserted into the air hole 34 on the circumferential surface of the cylindrical portion of the ignition device 30 in a removable state. The tip of the air duct portion 17 is located at the center of the bottom surface portion of the housing and can direct fire or wind directly onto the charcoal 43 of the ignition device 30 by being bent in an upward L-shape or having an L-shaped member.

[0020] As shown in FIG. 3, since the center of the lid 20 of the housing 10 is flat, a pot 50 can be installed on the upper part of the lid 20. The pot 50 may be provided with a pot lid 51. By putting the cooked taro in this pot, it can be kept warm. It is preferable that the pot lid is provided with air holes. The pot lid is preferably made of heat-resistant glass.

[0021] The pot 50 may have one or more tiers. Two tiers are particularly preferred. The pot 50 preferably has multiple holes in the bottom of the upper tier, like a steamer. It is preferable that the bottom of the pot has through holes. This allows excess moisture from the baked sweet potatoes to be drained out. By placing stones in the pot and then placing the baked sweet potatoes on top of them, the pot can be kept warm and can be flavored like stone-baked sweet potatoes.

[0022] As shown in Figure 4, by connecting a blower 41 or the like to the air outlet 18, air can be delivered directly to the ignited charcoal inside the fire starter 30, and the heat can be adjusted by adjusting the amount of air supplied. Also, as shown in Figure 5, by inserting a gas burner 42 into the air outlet 18, the charcoal inside the fire starter 30 can be directly ignited.

[0023] The cylindrical portion of the housing may have one or more air holes 16 for the inflow and outflow of air. The air holes 16 can be provided at any position on the housing, but it is preferable to provide them below the cooking utensil setting net 14. This allows for efficient heating and cooking without allowing high-temperature air to escape. The number of air holes 16 is preferably 1 to 20, more preferably 2 to 15, even more preferably 3 to 10, particularly preferably 4 to 8, and most preferably 5 to 6.

[0024] The diameter of the air vent 16 is not particularly limited, but is 0.5 cm to 5 cm, preferably 1 cm to 4 cm, and more preferably 2 cm to 3 cm. In addition, a movable cover may be provided for the air vent 16 in order to adjust the amount of air entering and leaving.

[0025] A thermometer 22 may be provided in the cylindrical portion 13 of the housing 10. If a thermometer 22 is provided, it can be installed in any location, such as at the height near the cooking utensil placement net 14 on the circumferential surface of the cylindrical portion of the housing, or it may be installed on the lid 20. It is particularly preferable to install the thermometer 22 on the lid 20.

[0026] The cylindrical part of the housing 10 may be fitted with a handle 19 or a hook 24. A handle would make it easier to carry. A hook 24 would allow cooking utensils or lids to be hung on it.

[0027] In the heating cooker of the present invention, the fire starter 30 comprises a bottom plate portion 31, a cylindrical portion 32, and a handle portion 33, and has a plurality of air holes 34 on the circumferential surface of the cylindrical portion. The bottom plate portion 31 is a member for receiving charcoal 43 placed inside the fire starter 30, and it is preferable that the bottom plate portion 31 has a plurality of through holes 35. The cylindrical portion 32 is a member that forms the circumferential surface of the fire starter 30, and can be any shape such as cylindrical or rectangular, but a cylindrical shape is particularly preferred. The handle portion 33 is a handle for easily removing the fire starter, and consists of one or two, and its shape is not limited. The diameter of the plurality of air holes 34 on the circumferential surface of the cylindrical portion is not particularly limited, and the number of air holes 34 is also not limited.

[0028] In this specification, "detachable" means that the fire starter 30 can be removed from the housing 10, and is not limited to whether or not the fire starter 30 is fixed to the housing 10.

[0029] The materials of each component constituting the heating cooker of the present invention will now be described. The housing 10 is preferably made of a metal material from the viewpoint of heat resistance and durability, and is not particularly limited, but stainless steel is preferred. As stainless steel, austenitic stainless steel such as SUS304 and SUS316 can be used. The housing 10 may be made of aluminum, aluminum alloy, iron, or a combination thereof.

[0030] The fire starter 30 is preferably made of a metal material from the viewpoint of heat resistance, and can be made of stainless steel, tinplate, galvanized steel sheet, aluminum, or a combination thereof.

[0031] The cooking utensil holder mesh 14 is preferably made of a metal material, and stainless steel is particularly preferred, from the viewpoint of heat resistance and strength. The cooking utensil holder mesh may also be made of surface-treated iron wire, plated iron wire, or a combination thereof.

[0032] The lid 20 of the housing is preferably made of a metal material, and stainless steel is particularly preferred, from the viewpoint of heat resistance. The handle portion of the lid can be made of a metal material with an insulating material coated on its surface from the viewpoint of heat resistance and heat insulation.

[0033] The air blower pipe section 17 is preferably made of a metal material from the viewpoint of heat resistance, and stainless steel or aluminum is particularly preferred. The air blower cylinder section may be made of a heat-resistant resin.

[0034] In this embodiment, the dimensions of the housing are as follows: the height of the housing is 30 to 60 cm, preferably 40 to 50 cm, and particularly preferably 45 cm; and the width (diameter) is 20 to 60 cm, preferably 30 to 50 cm, particularly preferably 40 to 45 cm, and even more preferably 43.5 cm. When the height of the housing is 45 cm and the width is 43.5 cm, the volume of the housing is 66,844 cm³. 3 This is the result.

[0035] In this embodiment, the dimensions of the fire starter 30 are as follows: the height of the fire starter is 10 to 30 cm, preferably 15 to 25 cm, and particularly preferably 20 cm; and the width (diameter) is 5 to 30 cm, preferably 10 to 20 cm, and particularly preferably 18 cm. When the height of the fire starter is 20 cm and the width is 18 cm, the volume of the fire starter is 5,087 cm³. 3 Therefore, the volume of the fire starter becomes approximately 0.076 times the volume of the casing.

[0036] The volume of the fire starter 30 is 0.01 times or more, preferably 0.025 times or more, more preferably 0.05 times or more, and particularly preferably 0.07 times or more, the volume of the housing 10. Within this range, a temperature sufficient for roasting the sweet potatoes can be reached. On the other hand, it is preferable that the volume of the fire starter is 0.5 times or less, preferably 0.25 times or less, and more preferably 0.1 times or less, the volume of the housing. This ensures sufficient space for the sweet potatoes to be placed inside the housing.

[0037] Various types of charcoal can be used as the charcoal 43 in the fire starter, such as wood charcoal, molded charcoal, sawdust charcoal, and bamboo charcoal. Although wood charcoal is used in the example, the type of charcoal used in this invention is not particularly limited.

[0038] As shown in Figure 6, after cooking using the heating cooker of the present invention is complete, the charcoal can be extinguished by removing the charcoal starter 30 from the housing 10, placing it in the charcoal extinguisher pot 35, and then closing the lid 36 for the charcoal extinguisher pot. The charcoal extinguisher pot 35 is preferably made of a metal material from the viewpoint of heat resistance, and stainless steel is particularly preferred. The charcoal extinguisher pot 35 may also be made of aluminum, aluminum alloy, iron, or a combination thereof.

[0039] The dimensions of the fire extinguisher pot 35 are preferably such that the inner diameter is larger than the outer diameter of the fire starter 30 and the height is greater than the height of the fire starter 30. Specifically, the inner diameter of the fire extinguisher pot 35 is preferably 1 to 5 cm larger than the outer diameter of the fire starter 30, and the height is preferably 5 to 15 cm greater than the height of the fire starter 30. This allows the fire starter 30 to be easily accommodated and the fire to be extinguished safely. [Examples]

[0040] The following describes embodiments of the present invention. The present invention is not limited to the contents of these embodiments.

[0041] We manufactured a cooking appliance with a casing as shown in Figure 1, which is 45 cm high and 43.5 cm in diameter, and has a blower pipe section on the bottom of the inside of the casing, and a removable fire starter that is 20 cm high and 18 cm in diameter and has a fire starter inside the casing.

[0042] I placed charcoal into the fire starter to the point where it exceeded the top of the fire starter, then placed the fire starter inside the casing, and inserted the air vent into the air hole of the fire starter.

[0043] A gas burner was inserted into the end of the air vent and the charcoal in the fire starter was ignited.

[0044] The cooking ingredients (potatoes) were placed on the cooking ingredient tray, the lid of the enclosure was closed, and a blower was inserted into the air vent to blow air until the temperature inside the enclosure reached 200°C.

[0045] After the internal temperature reached 200°C, the temperature was maintained for 30 minutes, then the baked sweet potatoes were removed and kept warm in a pot placed on top of the lid of the enclosure.

[0046] After cooking was finished, the fire starter could be removed from the casing, placed in a metal fire extinguisher pot with an inner diameter of 22 cm and a height of 30 cm, and the fire could be extinguished simply and safely by closing the lid of the fire extinguisher pot. [Industrial applicability]

[0047] This invention can be suitably used in the production of roasted sweet potatoes. [Explanation of symbols]

[0048] 10 cabinets 11 Opening 12 Bottom part 13 Cylinder part 14. Cooking Utensils Placement Net 15. Protrusions for the cooking utensil placement net 16 air vents 17 Air pipe section 18 Air outlet 19. Case handle 20 Lid 21 Lid handle 22 Thermometer 23 Through hole 24 hooks 30 Fire starter 31 Bottom plate part 32 Cylinder part 33 Handle section 34 air holes 35 Through hole 36 Fire extinguisher 37 Lid for fire extinguisher 41 Blower 42 Gas burner 43 Charcoal 50 pots 51 Pot lid

Claims

1. A cooking appliance equipped with a removable ignition starter inside the casing, The fire starter comprises a base plate, a cylindrical section, and a handle section, and has a plurality of air holes on the circumferential surface of the cylindrical section. The housing consists of an opening at the top, a bottom section, and a cylindrical section, and is equipped with a removable lid on the opening and a cooking utensil storage net inside the housing. The casing has air holes on the circumferential surface of the cylindrical portion, The lid is a lid having a flat horizontal surface at its center, The device is fixed inside the housing and can be inserted into one of the air holes on the circumferential surface of the fire starter, and is equipped with an air vent fixed to the air outlet on the circumferential surface of the housing, A cooking appliance having a blower or gas burner that can be inserted into the aforementioned air outlet.

2. The heating appliance according to claim 1, wherein the volume of the fire starter is 0.01 times or more and 0.5 times or less the volume of the casing.

3. Furthermore, the heating appliance according to claim 1 or 2, wherein a pot is provided on the upper part of the lid of the housing.

4. The heating appliance according to claim 3, wherein the lid has a through hole and the bottom of the pot has a through hole.

5. The heating appliance according to claim 1, wherein the air holes on the circumferential surface of the cylindrical portion of the housing are located below the cooking utensil mounting net.

6. A method for producing baked sweet potatoes, comprising heating the sweet potatoes over charcoal using a heating appliance according to claim 1 or 2.

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