Cooking utensil and frying and baking machine

Abstract

The utility model discloses a cooking utensil and a frying and baking machine, and belongs to the technical field of kitchen utensils. The cooking utensil comprises a base material and a coating coated on the base material, a plurality of protrusions distributed on the outer surface of the base material are arranged on the base material, the coating is at least coated at the top ends of the protrusions, and the coating sequentially comprises a surface oil layer, a fusion layer and a bottom oil layer from top to bottom. The combination property of the bottom oil layer and the surface oil layer can be improved by arranging the fusion layer in the appliance, so that the scratch resistance, the non-stickiness and the wear resistance of the coating are improved, the coating is prevented from falling off in the use process, the bottom is not easy to expose, the service life of the appliance is prolonged, and the use safety of the appliance is improved.

Description

A cooking appliance and a grill Technical Field

[0001] This application relates to a cooking appliance and a grill, belonging to the field of kitchen utensil technology. Background Technology

[0002] Nowadays, the most common baking pans are those with a non-stick coating, which have advantages such as fast heat conduction, strong heat retention, non-stick properties, and easy cleaning. However, all existing coated baking pans on the market are relatively poor in terms of wear resistance and scratch resistance.

[0003] To improve the non-stick properties of cooking utensils, a non-stick coating is typically sprayed onto the surface of the substrate. Furthermore, to facilitate the removal of food from the utensils and enhance the appearance of cooked food, textured surfaces of varying shapes and sizes are often created on the substrate. This combination results in some of the coating being located in the grooves of the textured surface, while some is located on the raised areas. During use, consumers often use hard tools to scratch and abrade the surface of the baking pan. The coating in the grooves is at a lower point and is less easily scraped off, but the coating on the raised areas, being at a higher position on the cooking surface, will bear significant friction and lacks sufficient wear resistance. Therefore, when traditional coatings are applied to unevenly textured baking pans, the coating is prone to peeling and scratching during use, exposing the substrate. Direct contact between the substrate and food poses a significant food safety risk, and the peeled coating can mix with food and enter the human body, causing considerable harm to human health. Summary of the Invention

[0004] To address the aforementioned issues, this application proposes a cooking utensil that replaces the traditional single-layer coating structure applied to the raised surface with a composite layer structure, thereby improving the wear resistance of the raised top and ensuring that the coating will not peel off during use and is less likely to expose the substrate.

[0005] According to one aspect of this application, a cooking utensil is provided, comprising a substrate and a coating applied to the substrate, wherein the substrate has a plurality of protrusions distributed on the outer surface of the substrate, and the coating is applied at least to the top of the protrusions, and the coating comprises, from top to bottom, a top oil layer, a fusion layer and a bottom oil layer.

[0006] Optionally, the top of the protrusion is provided with a platform so that the coating can be deposited on the platform.

[0007] Optionally, the platform is connected to the bottom of the protrusion via an inclined portion, the vertical distance between the platform and the bottom of the protrusion is H, and the horizontal distance from the platform to the bottom of the protrusion is D, where 0.5mm≤H≤1.5mm and 8mm≤D≤10mm.

[0008] Optionally, H can be taken from 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm and any value between them.

[0009] Optionally, D is selected from 8mm, 8.5mm, 9mm, 9.5mm, 10mm and any value between them.

[0010] Optionally, the transverse cross-sectional width of the platform is d, where 3mm ≤ d ≤ 4mm.

[0011] Optionally, d is selected from 3mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm, 3.9mm, 4mm and any value between them.

[0012] Optionally, the total thickness of the coating on the platform is 55–60 μm.

[0013] Optionally, the total thickness of the coating on the platform is selected from 55μm, 56μm, 57μm, 58μm, 59μm, 60μm and any value between them.

[0014] Optionally, the shape of the platform is selected from one of the following: circle, rectangle, triangle, ellipse, or polygon with a side length greater than 4.

[0015] Optionally, the thickness of the coating gradually decreases from the top to the bottom of the protrusion.

[0016] Optionally, the thickest thickness of the base oil layer at the top of the protrusion is C, and the thinnest thickness of the base oil layer at the bottom of the protrusion is B, where 10μm≤CB≤20μm.

[0017] Optionally, CB is selected from 10μm, 11μm, 12μm, 13μm, 14μm, 15μm, 16μm, 17μm, 18μm, 19μm, 20μm and any value between them.

[0018] Optionally, the thickness of the surface oil layer is 2-15 μm.

[0019] Optionally, the thickness of the oil surface layer is selected from 2μm, 3μm, 4μm, 5μm, 6μm, 7μm, 8μm, 9μm, 10μm, 11μm, 12μm, 13μm, 14μm, 15μm and any value between them.

[0020] Optionally, the thickness of the fusion layer is 20-30 μm.

[0021] Optionally, the thickness of the fusion layer is selected from 20μm, 21μm, 22μm, 23μm, 24μm, 25μm, 26μm, 27μm, 28μm, 29μm, 30μm and any value between them.

[0022] Optionally, the thickness of the base oil layer is 30-45 μm.

[0023] Optionally, the thickness of the base oil layer is selected from 30μm, 31μm, 32μm, 33μm, 34μm, 35μm, 36μm, 37μm, 38μm, 39μm, 40μm, 41μm, 42μm, 43μm, 44μm, 45μm and any value between them.

[0024] Optionally, the base oil layer is a methylsiloxane layer;

[0025] The surface oil layer is a silicon dioxide layer.

[0026] According to another aspect of this application, a grill is provided, which includes a body and a lid, and also includes the cooking utensil described in any of the above claims, the cooking utensil including a lower grill pan disposed on the body and an upper grill pan disposed on the lid.

[0027] The beneficial effects that this application may produce include, but are not limited to:

[0028] 1. The cooking utensil provided in this application has several protrusions on the surface of the substrate, which can further improve the non-stick performance of the cooking utensil, making it easier for food to be removed and increasing the aesthetic appeal of the food surface after cooking. Since the top of the protrusions is easily scratched by the user and has poor wear resistance, this application improves the coating on the top of the protrusions from the traditional single structure to a composite layer structure, thereby improving the wear resistance of the top of the protrusions and preventing the substrate from being exposed. Specifically, by fusing the base oil and the top oil to form a fusion layer, the bonding between the top oil and the base oil is made more reliable, which greatly improves the wear resistance of the top oil layer. As a result, the top oil layer not only has high gloss and non-stick properties, but also better wear resistance, corrosion resistance, and high hardness, thereby achieving the overall durable non-stick and wear-resistant performance of the utensil.

[0029] 2. Furthermore, the cooking utensil provided in this application has a platform at the top of the protrusion to facilitate the accumulation of coating on the top of the protrusion, thereby increasing the thickness of the coating at the top of the protrusion and thus effectively improving the self-consumption of the coating during the wear process.

[0030] 3. Furthermore, the cooking utensil provided in this application has a vertical distance of 8 to 10 mm between the platform and the top surface of the substrate, and a horizontal distance of 0.5 to 1.5 mm between the inclined part and the top surface of the substrate. This not only improves the frying and grilling effect on food, but also prevents the bottom oil from flowing back along the inclined surface of the inclined part and causing oil accumulation at the bottom. Attached Figure Description

[0031] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0032] Figure 1 is a side cross-sectional view of the substrate after primer is applied according to an embodiment of this application;

[0033] Figure 2 is a side cross-sectional view of the substrate after applying primer and topcoat in an embodiment of this application;

[0034] Figure 3 is a side cross-sectional schematic diagram of the protrusion involved in the embodiment of this application;

[0035] Figure 4 is a side cross-sectional schematic diagram of the protrusions and coating involved in the embodiments of this application;

[0036] Figure 5 is a magnified view of part A in Figure 4;

[0037] Figure 6 is a side cross-sectional schematic diagram of the coating on the protruding tip involved in the embodiment of this application.

[0038] List of components and reference numerals:

[0039] 1. Substrate; 2. Topcoat layer; 3. Fusion layer; 4. Basecoat layer; 41. Liquid basecoat layer; 42. Semi-solid basecoat layer; 51. Platform; 52. Inclined section; 6. High-frequency friction area. Detailed Implementation

[0040] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0041] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0042] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0043] Furthermore, it should be understood in the description of this application that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0047] Referring to Figures 1-6, an embodiment of this application discloses a cooking utensil, including a substrate 1 and a coating applied to the substrate 1. The substrate 1 has a plurality of protrusions distributed on its outer surface. The coating is applied at least to the top of the protrusions. The coating includes, from top to bottom, a top oil layer 2, a fusion layer 3 and a bottom oil layer 4.

[0048] This application improves the overall scratch resistance, non-stickiness, and wear resistance of the coating by setting a fusion layer 3 between the topcoat layer 2 and the basecoat layer 4, ensuring that the coating will not fall off during use and is less likely to expose the base coat, thereby improving the safety of the appliance.

[0049] Specifically, the substrate 1 is commonly made of die-cast aluminum, but is not limited to stainless steel, galvanized sheet, or other materials. Several protrusions on the substrate 1 create an uneven surface, further improving the non-stick properties of the cooking utensil, facilitating food removal and enhancing the grilling and frying effects. However, during use and cleaning, the protrusions are more easily scraped and experience greater friction than other areas, resulting in poorer wear resistance. Therefore, this application improves the coating on the top of the protrusions from a traditional single-layer structure to a composite layer structure, significantly improving the wear resistance of the protrusion top and extending the service life of the cooking utensil.

[0050] Furthermore, the coating of this composite structure consists of a top oil layer 2, a fusion layer 3, and a base oil layer 4. The fusion layer 3 is formed after the base oil and top oil are fused together. This design has two advantages: first, it can improve the bonding force between the top oil layer 2 and the base oil layer 4, which has the advantages of preventing coating peeling and significantly increasing the wear resistance of the top oil layer 2. As a result, the top oil layer 2 not only has high gloss and non-stick properties, but also better wear resistance, corrosion resistance, and high hardness, thus achieving the overall durable non-stick and wear-resistant performance of the utensil; second, since the fusion layer 3 is formed by fusing the base oil and top oil, it contains components of the top oil layer. Even if the top oil layer 2 wears down after the cooking utensil has been used for a period of time, the fusion layer 3 can still maintain high non-stick and wear resistance, thereby further improving the service life of the utensil.

[0051] Specifically, the coating is formed as follows: using substrate 1 as the main coating carrier, a base coat is first sprayed, which forms a semi-solid base coat layer 42 and a liquid base coat layer 41. Then, a top coat is sprayed on the semi-solid base coat layer 42 and the liquid base coat layer 41. Finally, a solid coating is formed by sintering. During the spraying process, the base coat and the top coat fuse together to form a unique fusion layer 3. That is, the final sintered coating includes a base coat layer 4, a fusion layer 3, and a top coat layer 2.

[0052] In one specific implementation, the base oil layer 4 is a methylsiloxane layer; the top oil layer 2 is a silica layer. The fusion layer 3 comprises silica and polymethylsiloxane.

[0053] Specifically, the composition of the base oil layer 4 and the composition and preparation process of the top oil layer 2 can be adjusted with reference to the formulations in the existing technology. The following is just one example of an achievable method:

[0054] The base oil consists of: 60% siloxane solution, 5% acetic acid, 10% silica, 5% deionized water, 5% pigment, 5%-8% wear-resistant filler, 1% titanium powder, 0.5% pearlescent powder, and the remainder is other additives, such as non-stick additives and leveling agents.

[0055] The topcoat consists of 80% silica solution, 10% deionized water, 3%-5% filler, and the remainder is other additives, such as non-stick additives and leveling agents.

[0056] The specific steps for forming the coating from the base oil layer 4, the fusion layer 3, and the top oil layer 2 of the above materials are as follows:

[0057] Preparation of base oil:

[0058] The base oil is a mixture of silica solution and siloxane solution under acidic conditions. The reaction between siloxane and silica is as follows: under acidic conditions, siloxane (Si(CH3)4O3) reacts with silica (SiO2) to produce methylsilane (CH3SiH3) and water (H2O).

[0059] Simplified reaction formula: Si(CH3)4O3+SiO2→CH3SiH3+H2O.

[0060] The base oil is obtained by mixing the above-mentioned base oil components.

[0061] Preparation of face oil:

[0062] The face oil is obtained by mixing the above-mentioned ingredients.

[0063] Substrate 1: Sandblasting and cleaning:

[0064] Sandblasting requires 46-60# white corundum abrasive grains; surface roughness 3.0-3.5 micrometers; side roughness of components 2.0-2.5μm.

[0065] Apply primer:

[0066] First, preheat the substrate 1 to 60-75℃. Then, spray the preheated substrate 1 with a primer. Because the substrate 1 has a certain temperature, when the primer adheres to the surface, the first part in contact is in a semi-solid state (without obvious fluidity). Due to the temperature difference, the upper part is still in a fluid state. Ensure that the residual temperature of the part after the primer is sprayed is 45-55℃ for 20-30 seconds, as shown in Figure 1. After the primer is sprayed, a semi-solid primer layer 42 and a liquid primer layer 41 are formed.

[0067] Topcoat spray:

[0068] Next, the topcoat is sprayed onto the semi-solid base coat. Due to the good compatibility between the topcoat and base coat, when the topcoat is sprayed onto the fluid base coat, some of the topcoat and base coat fuse together to form a unique fusion layer 3. This fusion layer 3 is a mixture of silica and polymethylsiloxane, which also contains titanium powder, non-stick additives, wear-resistant powder, and other comprehensive mixed layers. When the two reach saturation, the excess topcoat automatically floats to the surface and remains in a liquid state, maintaining a fluid state before sintering, as shown in Figure 2. After the topcoat is sprayed, it fuses with the liquid base coat layer 41. The fused liquid base coat layer 41 and the topcoat form the bottom-to-surface fusion area, and the remaining unfused topcoat forms the topcoat layer 2.

[0069] sintering:

[0070] The parts coated with base coat and top coat are placed in an environment of 295-300℃ for sintering and curing. The liquid base coat layer 41 and the semi-solid base coat layer 42, which are not fused with the top coat, form the base coat layer 4. The fusion area on the bottom surface forms the fusion layer 3, and the unfused top coat forms the top coat layer 2, resulting in a coating with three layers. The purpose of setting this sintering temperature is to evaporate as much water as possible from the base coat, thereby improving its adhesion to the substrate 1; secondly, to improve the fusion strength between the fusion layer 3 and the top coat, making it less prone to peeling off; and finally, to completely bake out the free silicone oil molecules inside the top coat, allowing them to adhere to the surface and provide a certain degree of lubrication, thereby improving the overall scratch resistance.

[0071] The coating of this application consists of three layers. The surface of the actual cooking baking pan has uneven edges or curved surfaces. When external friction is applied, the reliability of the coating is greatly affected. Weak areas of the coating will appear at the top of the protrusions, and the paint will peel off quickly after a period of friction.

[0072] Referring to Figure 3, in one embodiment, a platform 51 is provided at the top of the protrusion so that the coating can be deposited on the platform. The platform 51 makes the top surface of the protrusion a flat plane, which facilitates the deposition of the coating on the platform 51, increases the coating thickness on the platform 51, thereby improving the scratch resistance of the coating at the top of the protrusion, avoiding the formation of weak areas in the coating at the top of the protrusion, preventing paint peeling, and improving the service life and safety of the cooking appliance.

[0073] However, the raised structure not only affects the grilling effect on food, but also affects the thickness of the coating in each area of ​​the raised area. Referring to Figure 3, in one embodiment, the platform 51 is connected to the bottom of the raised area through the inclined part 52. The vertical distance between the platform 51 and the bottom of the raised area is H, and the horizontal distance from the platform 51 to the top surface of the bottom of the raised area is D. 0.5mm≤H≤1.5mm, 8mm≤D≤10mm.

[0074] The coordinated arrangement of the inclined section 52 and the platform 51 can ensure that the coating is evenly distributed and of moderate thickness at the highest point where the platform 51 and the inclined section 52 are connected, and can also prevent excessive accumulation of coating on the platform 51. This can alleviate the flow of coating on the inclined sections 52 on both sides and increase the adsorption of base oil and top oil on both sides.

[0075] The angle θ between the top and bottom of platform 51 and the outer surface of substrate 1 is determined by the values ​​of D and H. When D is fixed, a larger H results in a larger angle θ, and a smaller H results in a smaller angle θ. Conversely, when H is fixed, a larger D results in a smaller angle θ, and a smaller D results in a larger angle θ. During paint spraying, the raised surface has a certain slope, and the paint surface is in a fluid state. If the angle θ is too large, the base coat is prone to backflow along the inclined surface of the inclined portion 52, leading to oil accumulation at the bottom. If the angle θ is too small, it reduces the grilling effect on food. Therefore, the settings of D and H ensure optimal results.

[0076] As one implementation method, referring to Figure 6, the transverse cross-sectional width of platform 51 is d, where 3mm ≤ d ≤ 4mm.

[0077] Figure 6 shows the location of the high-frequency friction area 6 of the protrusion. Therefore, this setting facilitates the retention of base oil and top oil on the platform 51 to form a thicker coating on the platform 51 compared to other areas, which significantly improves the wear resistance of the coating on the protrusion and also avoids excessive accumulation of paint, which is conducive to the transition of paint from the platform 51 to the inclined part 52.

[0078] In one implementation, the total thickness of the coating on platform 51 is 55–60 μm.

[0079] Because the coating on platform 51 has a relatively flat surface, the coating can be effectively deposited and formed. Therefore, the film thickness in this part is thicker than on the sides, and this part can also effectively reduce the wear of the coating itself during the wear-resistant process.

[0080] Referring to Figures 4 and 5, in one embodiment, the coating thickness gradually decreases from the top to the bottom of the protrusion. This design allows the protrusion to better resist scratches and wear, extending the service life of the appliance. In addition, the gradually thinning coating at the bottom of the protrusion helps with heat conduction, resulting in a more uniform temperature distribution on the appliance surface and improving the appearance of the food after frying or grilling.

[0081] During spraying, the base coat and top coat flow from the platform 51 to the inclined portion 52. To ensure that there is no oil runoff or accumulation on the inclined portion and to achieve a good coating effect, in one embodiment, the base coat layer 4 has a maximum thickness of C at the top of the protrusion (the top of the inclined portion 52) and a minimum thickness of B at the bottom of the protrusion (the bottom of the inclined portion 52), with 10μm ≤ B ≤ 20μm.

[0082] Specifically, the shape of platform 51 can be selected according to actual needs. As one implementation, the shape of platform 51 is selected from one of the following: circle, rectangle, triangle, ellipse, or polygon with a side length greater than 4.

[0083] Specifically, the distribution of several protrusions on the substrate 1 can be varied. For example, several protrusions can be distributed in parallel strips, in which case the platform 51 is rectangular and adjacent protrusions are distributed in parallel. Another example is that several protrusions can be evenly distributed in dots, in which case each protrusion has the same shape and size and is evenly distributed along the surface of the substrate 1. Several protrusions can also be distributed radially from the center outwards, in which case the size of the protrusions gradually increases from the center outwards, thereby forming a uniformly transitioned protrusion on the cooking utensil.

[0084] Because of the included angle θ inside the baking pan, when the base coat is applied to the surface in a fluid state, the portion that first comes into contact with it solidifies into a semi-solid state. The intermolecular forces then adhere the still-liquid portion of the surface layer to the surface. If the thickness of the base coat is increased indefinitely, when the intermolecular forces become less than the component of the paint molecules' gravity along the inclined plane, the paint molecules will begin to slide. Macroscopically, this will result in problems such as oil runoff and oil accumulation.

[0085] Therefore, in one embodiment, the thickness of the top oil layer 2 is 2-15 μm; the thickness of the fusion layer 3 is 20-30 μm; and the thickness of the bottom oil layer 4 is 30-45 μm.

[0086] Test: A standard surface abrasion tester was used, with an external force of 1.5KG applied. The grinding head size was 300*70mm, and the reciprocating friction stroke was 100-120mm. A steel wool abrasion test was conducted on the surface of the above-mentioned cooking utensils using a reciprocating steel wool abrasion test.

[0087] Results: Conventional coated steel wool abrasion tests showed that the bottom layer was exposed after 2000-3000 cycles, while the cooking utensils in this embodiment showed the bottom layer after 10000 cycles, which is 3-5 times better than conventional products; the abrasion resistance can meet the national standard level one requirements.

[0088] As one implementation, this embodiment also discloses a grill, which includes a body and a lid, and also includes the cooking utensil of any of the above embodiments. The cooking utensil includes a lower grill plate disposed on the body and an upper grill plate disposed on the lid, and has the beneficial effects of the cooking utensil of any of the above embodiments.

[0089] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0090] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A cooking utensil, characterized in that, The material includes a substrate and a coating applied to the substrate. The substrate has a plurality of protrusions distributed on its outer surface. The coating is applied at least to the top of the protrusions. The coating, from top to bottom, includes a topcoat layer, a fusion layer, and a basecoat layer.

2. The cooking utensil according to claim 1, characterized in that, The top of the protrusion is provided with a platform so that the coating can be deposited on the platform.

3. The cooking utensil according to claim 2, characterized in that, The platform is connected to the bottom of the protrusion via an inclined section. The vertical distance between the platform and the bottom of the protrusion is H, and the horizontal distance from the platform to the bottom of the protrusion via the inclined section is D. 0.5mm≤H≤1.5mm, 8mm≤D≤10mm.

4. The cooking utensil according to claim 2, characterized in that, The transverse cross-sectional width of the platform is d, where 3mm ≤ d ≤ 4mm.

5. The cooking utensil according to any one of claims 2-4, characterized in that, The total thickness of the coating on the platform is 55-60 μm; and / or the shape of the platform is selected from one of the following: circle, rectangle, triangle, ellipse, or polygon with a side length greater than 4.

6. The cooking utensil according to claim 1, characterized in that, The thickness of the coating gradually decreases from the top to the bottom of the protrusion.

7. The cooking utensil according to claim 1, characterized in that, The thickest layer of the base oil layer at the top of the protrusion is C, and the thinnest layer of the base oil layer at the bottom of the protrusion is B, where 10μm≤CB≤20μm.

8. The cooking utensil according to claim 1, characterized in that, The thickness of the topcoat layer is 2-15 μm; and / or the thickness of the fusion layer is 20-30 μm; and / or the thickness of the basecoat layer is 30-45 μm.

9. The cooking utensil according to claim 1, characterized in that, The base oil layer is a methylsiloxane layer; the top oil layer is a silica layer.

10. A grilling machine, characterized in that, It includes a body and a lid, and also includes a cooking utensil as described in any one of claims 1-9, the cooking utensil including a lower baking tray disposed on the body and an upper baking tray disposed on the lid.

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