JP2001120424A - Container for microwave heating - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container for microwave heating capable of effectively preventing deterioration of crispy feeling of the crust part of a pizza, etc., when heated by microwave oven and controlling uneven heating on the bottom of a food. SOLUTION: This container (10) for microwave heating comprises a bottom partbe heated with a horizontal plane (13a) for mounting a food (15) to be heated. In thiscontainer (10), plural mounting parts are mounted discontinuously along the rim of thebottom inside the side wall (12). The height of the horizontal plane of the mountingpart for a food to be heated is set higher than the top of the bottom part (11), and theheight of the upper end of the side wall consists of higher parts (12a and 12b) higherthan the horizontal plane of the mounting part for a food to be heated and a lower part(12c) lower than the horizontal plane of the mounting part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention suppresses a decrease in crispy texture of pizza dough and the like caused by heating when food such as frozen pizza is heated in a microwave oven, and substantially uniformly heats the back surface. The present invention relates to a microwave heating container that can be used.

[0002]

2. Description of the Related Art In recent years, various frozen foods and processed foods have been developed, and a microwave oven is often used for cooking or thawing and heating these foods. Cooking with a microwave oven is simple, but there is a problem that moisture and oil content in the food are transferred during heating, and the crispy texture of fried foods and baked goods, for example, crust portions of pizza, is reduced. Therefore, in order to solve the problems caused by such microwave cooking, attempts have been made to improve the food itself for heating the microwave oven or to improve a container for placing the food when heating the microwave oven. ing. As an improvement of the latter container, for example, in Japanese Utility Model Laid-Open Publication No. Hei 7-12023, when a fried product is stored, a plurality of projections are formed to float the fried product from the bottom inner surface and form a space between the fried product and the bottom surface. A container for heating fried food is disclosed. Japanese Patent Application Laid-Open No. H8-154827 discloses a dish provided with a plurality of projections or ridges on a bottom upper surface, and a hole formed on an inclined surface of the projection or ridge to penetrate the inside and outside of the container. A flat bowl, a container with a lid, and the like are disclosed. But,
In the improvement of the container, on the slope of the protrusion or ridge,
Even when a hole is formed to penetrate the inside and outside of the container, steam or the like during heating of the microwave oven often stays at the bottom of the container, and the effect is still not sufficient.

[0003] Usually, foods placed in a container to be heated by a microwave oven are often distributed in a state of being wrapped with a wrap film or the like. In this case, in a state where the wrap film or the like is packaged so as to be in contact with the surface of the food with a certain degree of pressure, the surface of the food is pressed, so that the volume of the whole food is lost and the appearance is deteriorated. For example, in a container such as a dish having no side wall, the height of the food to be placed is the highest, so that a wrap film or the like for packaging comes into contact with the food at a certain pressure, which causes the above-mentioned problem during distribution. Therefore, in general, a side wall set higher than the height of the upper surface of the bottom portion and higher than the height of the upper surface of the food to stably hold the food itself in the container is provided with a container provided on the entire circumference of the bottom portion. It is used.
In the case of a container having such a side wall, even when a protrusion or the like is provided on the upper surface of the bottom of the container so as to provide a space between the bottom of the food and the upper surface of the bottom of the container, the texture of the food is crispy. It is difficult to suppress the decline.

[0004]

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to effectively suppress a decrease in crispy texture in a crust portion of a pizza, etc. caused by heating in a microwave oven, and to reduce uneven heating on the bottom surface of a food. An object of the present invention is to provide a microwave heating container that can be suppressed. Another object of the invention is
In addition to effectively suppressing the decrease in the texture, etc., when wrapping with a wrap film or the like, it is possible to suppress the reduction in the volume and appearance of the food placed in the container, and to facilitate the packaging in a microwave oven. Container is provided.

[0005]

That is, according to the present invention, according to the present invention, the bottom surface (11), the side wall (12) surrounding the bottom surface, and the horizontal surface (13a) for placing the food for heating (15) thereon. ) Comprising: a heating food placing part (13) having a heating food placing part (13), wherein the heating food placing part is intermittently arranged along the edge of the bottom inside the side wall. Are provided, the height of the horizontal surface of the food placement unit for heating is set higher than the upper surface of the bottom portion, and the height of the upper end of the side wall,
A part (12) higher than the horizontal
a, 12b) and a low portion (12c) are provided. In such a microwave oven container of the present invention, a plurality of heating food placement units having a horizontal surface set higher than the bottom surface upper surface are provided intermittently along the edge of the bottom surface inside the side wall. With this configuration, the food to be heated is stably held in the container, and a space is provided between the bottom surface of the container and the lower surface of the food to be placed. Since the height of the upper end of the side wall includes a portion higher than the height of the horizontal plane and a portion lower than the height of the horizontal surface, the food to be placed is more stably held in the container by the higher portion, and the microwave oven is controlled by the lower portion. During heating, steam and the like remaining in the space between the bottom surface of the container and the lower surface of the food to be placed are efficiently discharged to the outside of the container, and uneven heating of the lower surface of the food is suppressed.

Further, according to the present invention, the height of the upper end of the side wall (12) is adjusted to the horizontal plane (13) of the heating food placing portion (13).
(a) (12a) higher than the height of (a), portions (b) (12b) lower than the height of the portion (a), and higher than the level of the horizontal surface of the food placement portion for heating, The microwave heating container has a height different from at least three levels of portions (c) and (12c) lower than a horizontal surface of the mounting portion.
By providing the portions (a) to (c) having different heights in such three stages, the portion (a) stably holds the food to be placed in the container, and the heating food is placed in the container. When the whole is wrapped with a wrap film or the like at the time of being placed and distributed, the wrap film or the like presses the food for heating so as to suppress the shape of the surface of the food for heating and a decrease in volume feeling. Suppress contact. The part (c) functions as a passage for efficiently discarding steam or the like remaining in the space outside the container when heating the microwave oven. Site (b)
When packaging the whole with a wrap film or the like when placing the food for heating on the container and distributing,
When (a) alone is used, when it is difficult to fix the packaging film, it functions so as to be easily fixed, and also functions to facilitate taking out the food for heating from the container.

Further, according to the present invention, a plurality of independent projections (14) and / or ridges having the same height as the height of the horizontal surface of the heating food placing portion are provided on the upper surface of the bottom portion. The above-mentioned microwave oven container is provided. By providing a plurality of such protrusions or protrusions, the food for heating can be more stably held in the container. The number and position of the projections and ridges are determined by the position (c) in which steam or the like generated at the time of microwave heating in the space formed by the bottom surface and the bottom surface of the food for heating is formed by the portion (c). It is desirable to form the passage so as not to block the passage connecting the space and the outside of the container.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the container for heating a microwave oven according to the present invention will be described in more detail with reference to the drawings, but the present invention is not limited thereto. FIG. 1 is a schematic perspective view showing an embodiment of the microwave heating container 10 of the present invention, FIG. 2 is a front view of the container 10 in FIG. 1, and FIG.
FIG. 4 is a schematic cross-sectional view of the AA cross section in FIG. 1 as viewed in the direction A. FIG. 4 is a schematic cross-sectional view of the BB cross section in FIG. 1 as viewed in the B direction. Such a container 10 is integrally formed of a plastic material or the like having resistance to microwave heating.

In the container 10, reference numeral 11 denotes a bottom surface of the container, and a plurality of truncated conical projections 14 are arranged on the upper surface of the bottom surface 11. Reference numeral 12 denotes a side wall that surrounds the entire periphery of the bottom surface portion 11. A horizontal surface 13 is provided inside the side wall 12 along the edge of the bottom surface so that the food for heating can be stably placed.
The six food-loading sections 13 having a are intermittently arranged. The placing portion 13 is provided in contact with a part of the side wall 12, but does not necessarily need to be in contact with the side portion 12, as long as the food for heating can be placed stably along the edge of the bottom surface. good. However, the height of the horizontal surface 13a needs to be higher than the height of the upper surface of the bottom surface portion 11.

The side wall 12 is provided on the entire periphery of the bottom portion 11, but need not necessarily be provided on the entire periphery. Side wall 12
It is sufficient that the upper end has a portion that is higher and lower than the height of the horizontal surface 13a of the mounting portion 13. For example, the upper end may have the same height as the horizontal surface 13a. In the embodiment shown in FIGS. 1 to 4, the side wall is formed by a portion 12a higher than the horizontal surface 13a, a portion 12b lower than the portion 12a and higher than the horizontal surface 13a, and a portion 12c lower than the horizontal surface 13a. Twelve upper ends are formed. In the side wall 12 formed by these parts 12a to 12c, as shown in FIGS.
A difference corresponding to the height indicated by h occurs between the height of 3a and the height of the portion 12c. When the food for heating is placed on the horizontal surface 13a of the placing portion 13, the bottom surface of the food for heating and the bottom portion 11
A space is created between the upper surface and
It functions as a passage for communicating the space inside the container with the outside of the container. At this time, the height of the upper end surface of the projection 14 is set to be the same as the height of the horizontal surface 13a so as to support the food for heating. Here, the portions 12a and 12b of the side walls function as stoppers and the like for stably holding the food in a container when the food for heating is placed. Also, the mounting unit 13
Are arranged one by one at each of the portions 12a and 12b on the side wall 12, but are not necessarily limited to this mode, and the above-described passage is formed, and the food for heating is stably formed. There are no particular restrictions on the location and number of the placement sections 13 as long as they can be placed.

FIG. 5 is a perspective view showing an embodiment in which a frozen pizza 15 is placed on the container 10 shown in FIG. 1, and FIG.
FIG. 4 is a perspective view showing a state in which packaging is performed with a wrap film 16 in the mode shown in FIG. Usually, when the frozen pizza 15 is thawed and heated by a microwave oven, the frozen pizza 15 is placed in a microwave oven in the state shown in FIG. At this time, frozen pizza 15
Is heated in a state of being floated from the bottom surface 11 of the container 10 by the horizontal surface 13a and the projections 14 of the mounting portion 13, so that the bottom surface of the frozen pizza 15 is also heated substantially uniformly, and steam and the like generated at this time are removed. It flows out of the container through the passage formed by the above-described portion 12c of the side wall 12, and suppresses a reduction in the crispy texture in the crust portion of the pizza when the microwave is thawed and heated.

When the pizza is transferred to another dish or the like after the microwave cooking is completed, a portion 12b on the side wall 12 of the container 10 is required.
Is set lower than the part 12a,
It can be easily taken out from the 2b side. Further, when the package shown in FIG.
a functions to prevent the wrap film 16 from pressing against the top surface of the frozen pizza and impairing the volume and appearance of the pizza. For this purpose, the part 12a is formed to be higher than the upper surface of the pizza.

On the other hand, since the part 12b is set at a lower height than the part 12a, the wrap film 16 can be easily fixed on the part 12b side. For example, when the shape of the bottom portion 11 of the container 10 is substantially a quadrangle, the length of the portion (b) in the direction along the edge where the portion (b) is provided is equal to the length of the portion 12b. (b) is set to be at least half the length of the side on which it is formed, and the same turnover is not provided with a portion higher than the portion (b) corresponding to the portion (a). Is preferred to effectively obtain

In the container for heating a microwave oven according to the present invention, for example, in order to increase the strength of the container shown in FIG.
A reinforcing portion such as a ridge formed at a height lower than the height of 4 may be provided. In addition, a member having another function may be provided as long as the function of the present invention is not impaired. Further, pores and the like can be provided on the bottom surface including the protrusions 14 as long as the strength of the container can be maintained.

[0015]

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples, but the present invention is not limited thereto. Example 1 0.1 g of a mixture of cereals and egg white was placed on the bottom of a pizza crust.
g / cm ² , and roasted in an oven on high heat with the coated side up. After cooling down,
A frozen pizza for microwave cooking was prepared by topping pizza sauce, cheese, pepperoni, peppers and the like and freezing at -40 ° C. The obtained frozen pizza was placed in the container 10 shown in FIG. 1 so as to be in the state shown in FIG. 5, and was thawed and cooked in a microwave oven. With respect to the obtained pizza, a panel of 10 persons evaluated crust texture (crispy feeling) according to the following evaluation criteria. The results are shown in Table 1 with the average score of 10 persons. <Evaluation criteria (texture: crispy)> 5 points: quick and light texture, very crisp. 4 points: Quick, slightly crisp. 3 points: It has a quick texture, but it is a little heavy and slightly crisp. 2 points: hardly quick, slightly crisp. 1 point: Not crunchy, heavy texture, poor crispness.

COMPARATIVE EXAMPLE 1 The same frozen pizza as prepared in Example 1 was placed in a container without the placing portion 13 and the projection 14 in the container 10 of FIG. And
Similar evaluations were made. Table 1 shows the results. Comparative Example 1 is an example in which microwave cooking was performed in a state where the bottom surface of the frozen pizza was in contact with the bottom surface portion 11 of the container.

COMPARATIVE EXAMPLE 2 In the container 10 shown in FIG. 1, the height of the portion 12c of the side wall 12 is the same as the height of the horizontal surface 13a of the mounting portion 13, and the space between the bottom surface of the frozen pizza and the bottom portion 11 of the container. In the state where the space to be formed does not have a passage communicating with the space outside the container, the same frozen pizza prepared in Example 1 is placed, microwave cooking is performed under the same conditions, and the same evaluation is performed. Was performed. Table 1 shows the results.

[0018]

[Table 1]

[0019]

The microwave heating container according to the present invention comprises a plurality of heating food placing portions having a horizontal surface set higher than the upper surface of the bottom portion intermittently along the inside of the side wall along the edge of the bottom surface. Since the height of the upper end of the side wall is provided with a portion higher and a portion lower than the height of the horizontal plane, the food for heating can be stably held in the container, and the crispy texture of the food can be improved. The decrease can be suppressed.
In addition, by providing portions (a) to (c) having different heights in three stages, the food for heating is stably held in the container,
When the whole food is wrapped with a wrap film or the like when the food for heating is placed in the container and distributed, the shape of the surface of the food for heating and a decrease in voluminous feel can be suppressed.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing one embodiment of a container for heating a microwave oven of the present invention.

FIG. 2 is a front view of the container in FIG.

FIG. 3 is a schematic cross-sectional view of the AA cross section in FIG.

FIG. 4 is a schematic cross-sectional view of the BB cross section in FIG.

FIG. 5 is a perspective view showing an embodiment in which a frozen pizza is placed on the container shown in FIG.

FIG. 6 is a perspective view showing a state in which the package shown in FIG. 5 is wrapped with a wrap film.

[Explanation of symbols]

10: Microwave heating container of the present invention 11: Bottom part of container 12: Side wall 12a: Part higher than horizontal plane 13a 12b: Part lower than part 12a and higher than horizontal plane 13a 12c: From horizontal plane 13a Low height part 13: Food placing part for heating 13a: Horizontal surface 14: Projection 15: Frozen pizza 16: Wrap film

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Atsushi Tamura 4-4-8, Honcho, Funabashi-shi, Chiba Room Room 511 (72) Inventor Hiroaki Nagasawa 4-4-8, Honcho, Funabashi-shi, Chiba D-Far Funabashi Dormitory Room 510 (72) Inventor Masato Nakagawa 4-4-8, Honcho, Funabashi-shi, Chiba Deal Room 305 Room (72) Inventor Tatsuya Yoshino 2-4-18 202, Takara, Ichikawa-shi, Chiba 202 (72) Invention Person Shigeyuki Nakano 4-10-8 Nakamachi, Koganei-shi, Tokyo (72) Inventor Muraoka Politics 5-3-3 Kitaurawa, Urawa-shi, Saitama A-910 (72) Inventor Satoshi Niwa 6-6 Tsunashima Nishi, Kohoku-ku, Kanagawa Prefecture −10 6th Shibata House Room 101 (72) Inventor Kunimoto Kunimoto 3-22-306 Idogata F-term (reference) 4B036 LE05 LF14 LP01 LP17 4B055 AA10 AA17 BA61 CA02 CA05 CA06 CB03 CB07 CC52 FA01 FB33 FC09

Claims (3)

[Claims] 1. A microwave oven heating container comprising a bottom portion, a side wall surrounding the bottom portion, and a heating food placing portion having a horizontal surface for placing a food for heating, wherein A plurality of food placement units are provided intermittently along the bottom of the bottom surface on the inner side of the side wall, and the height of the horizontal surface of the food placement unit for heating is set higher than the top surface of the bottom portion, and A microwave oven container characterized in that the height of the upper end of the side wall is constituted by a portion higher and lower than the height of the horizontal surface of the food placing portion for heating. 2. A portion (a) in which the height of the upper end portion of the side wall is higher than the height of the horizontal surface of the food placement portion for heating, and a height lower than the height of the portion (a) and the food placement portion for heating. The microwave oven according to claim 1, wherein the microwave oven has different heights in at least three stages: a portion (b) higher than the horizontal surface of the heater and a portion (c) lower than the horizontal surface of the food placement portion for heating. Heating container. 3. The method according to claim 1, wherein a plurality of independent projections and / or protrusions having the same height as the height of the horizontal surface of the food placing portion for heating are provided on the upper surface of the bottom portion. Microwave heating container.