JP4088395B2

JP4088395B2 - Microwave heating container

Info

Publication number: JP4088395B2
Application number: JP30924999A
Authority: JP
Inventors: 敦田村; 宏昭長澤; 将人中川; 達也吉野; 重幸中野; 政治村岡; 聡丹羽; 邦世岸本
Original assignee: Tokan Kogyo Co Ltd
Current assignee: Tokan Kogyo Co Ltd
Priority date: 1999-10-29
Filing date: 1999-10-29
Publication date: 2008-05-21
Anticipated expiration: 2019-10-29
Also published as: JP2001120424A

Description

【０００１】
【発明の属する技術分野】
本発明は、冷凍ピザ等の食品を電子レンジ加熱した際に、該加熱により生じるピザ生地等のサックリした食感の低下を抑制すると共に、裏面の加熱を略均一に行なうことができる電子レンジ加熱用容器に関する。
【０００２】
【従来技術】
近年、種々の冷凍食品や加工食品が開発され、これらの食品を調理又は解凍加熱するために電子レンジが使用されることが多くなっている。この電子レンジによる調理は、簡便であるが、加熱中に食品内の水分や油分が移行し、揚げ物や焼物、例えば、ピザのクラスト部分におけるサックリした食感が低下するという問題が生じる。
そこで、このような電子レンジ調理により生じる問題点を解決するために、食品自体を電子レンジ加熱用に改良したり、電子レンジ加熱する際の食品を載置するための容器を改良する試みがなされている。
後者の容器の改良としては、例えば、実開平７−１２０２３号公報において、揚げ物を収容した際に、揚げ物を底部内面から浮かせ、揚げ物と底部面との間に空間を形成する複数の突起を設けた揚げ物加熱用容器が開示されている。また、特開平８−１５４８２７号公報には、底部上面に複数の突起又は突条を設け、この突起又は突条の傾斜面に、容器の内側と外側とを貫通させる穴を穿設した皿、平小鉢及び蓋付容器等が開示されている。
しかし、上記容器の改良においては、突起又は突条の傾斜面に、容器の内側と外側とを貫通させる穴を穿設した場合であっても、電子レンジ加熱時における蒸気等が容器底部に留まることが多く、その効果は未だ十分であるとは言えない。
【０００３】
ところで、通常、電子レンジ加熱に供する容器に載置した食品は、ラップフィルム等により包装された状態で流通することが多い。この場合、食品表面にラップフィルム等が、ある程度の圧力で接するように包装された状態では、食品の表面が押圧され、食品全体のボリューム感が失われると共に、外観も悪くなるという問題が生じる。例えば、側壁を有していない皿等の容器は、載置する食品の高さが最も高くなるため、包装用のラップフィルム等がある程度の圧力で食品と接し、上記流通時における問題が生じる。
そこで、一般的には、底面部上面の高さより高く、且つ食品自体を容器に安定して保持するために食品上表面の高さより高く設定した側壁が、底面部全周に設けられた容器が使用されている。
このような側壁を有する容器の場合、上述の食品底部と、容器の底面部上面との間に空間を設けるように突起等を容器の底部上面に設けた場合でも、食品のサックリした食感の低下を抑制することは困難である。
【０００４】
【発明が解決しようとする課題】
従って、本発明の目的は、電子レンジ加熱した際に生じる、ピザのクラスト部分等におけるサックリした食感の低下を有効に抑制すると共に、食品底面の加熱ムラを抑制し得る電子レンジ加熱用容器を提供することにある。
本発明の別の目的は、上記食感の低下等を有効に抑制すると共に、ラップフィルム等により包装した際に、容器に載置する食品のボリューム感及び外観の低下を抑制することができ、且つ包装がし易い電子レンジ加熱用容器を提供することにある。
【０００５】
【課題を解決するための手段】
すなわち、本発明によれば、底面部(１１)と、該底面部を囲む側壁(１２)と、加熱用食品(１５)を載置するための水平面(１３ａ)を有する加熱用食品載置部(１３)とを備える電子レンジ加熱用容器(１０)であって、前記加熱用食品載置部が、前記側壁の内側に、底面の淵部に沿って断続的に複数設けられ、加熱用食品載置部の水平面の高さが底面部上面より高く設定されており、且つ前記側壁の上端部の高さが、加熱用食品載置部の水平面の高さより高い部位(１２ａ，１２ｂ)と低い部位(１２ｃ)とにより構成されていることを特徴とする電子レンジ加熱用容器が提供される。
このような本発明の電子レンジ加熱用容器では、底面部上面より高く設定された水平面を有する加熱用食品載置部を、側壁の内側に、底面の淵部に沿って断続的に複数設けるという構成により、加熱する食品を容器に安定に保持すると共に、容器底面部と載置する食品の下面との間に空間を設ける。そして、前記側壁の上端部の高さとして、該水平面の高さより高い部位と低い部位とを備えるので、該高い部位により載置する食品を容器に更に安定に保持し、該低い部位により電子レンジ加熱時において、上記容器底面部と載置する食品の下面との間の空間に留まる蒸気等を効率良く容器外に流出させると共に、食品下面の加熱ムラを抑制する。
【０００６】
また本発明によれば、前記側壁(１２)の上端部の高さが、加熱用食品載置部(１３)の水平面(１３ａ)の高さより高い部位(a)(１２ａ)と、該部位(a)の高さより低く、且つ加熱用食品載置部の水平面の高さより高い部位(b)(１２ｂ)と、加熱用食品載置部の水平面より低い部位(c)(１２ｃ)との少なくとも３段階に異なる高さを有する前記電子レンジ加熱用容器が提供される。
このような３段階に異なる高さの部位(a)〜(c)を備えることにより、部位(a)は載置する加熱用食品を容器に安定して保持すると共に、加熱用食品を該容器に載置して流通させる際等におけるラップフィルム等により全体を包装した際に、加熱用食品の表面の型崩れ及びボリューム感の低下を抑制するように、ラップフィルム等が加熱用食品を圧して接触することを抑制する。部位(c)は電子レンジ加熱時における、上記空間に留まる蒸気等を容器外へ効率良く廃棄する通路として機能する。部位(b)は、加熱用食品を該容器に載置して流通させる際等におけるラップフィルム等により全体を包装する際に、部位(a)のみでは包装フィルムの固定が困難な場合に固定し易いように機能し、且つ、加熱用食品を該容器から取出し易くするようにも機能する。
【０００７】
更に本発明によれば、底面部の上面に、加熱用食品載置部の水平面の高さと同一高さの独立した突起(１４)及び／又は突条を複数設けたことを特徴とする前記電子レンジ加熱用容器が提供される。
このような突起又は突条を複数設けることにより、加熱用食品をより安定に容器に保持させることができる。この突起や突条を設ける際の数及び位置は、加熱用食品下面と底面部とにより形成される空間内の電子レンジ加熱時において発生する蒸気等が、上記部位(ｃ)により形成される該空間と容器外とを連通させる通路を遮断しないように適宜決定して形成することが望ましい。
【０００８】
【発明の実施の形態】
以下、本発明の電子レンジ加熱用容器を図面を参照して更に詳細に説明するが、本発明はこれに限定されるものではない。
図１は、本発明の電子レンジ加熱用容器１０の一態様を示す概略斜視図であって、図２は、図１における容器１０の正面図、図３は、図１におけるＡ−Ａ断面をＡ方向に見た断面概略図、図４は、図１におけるＢ−Ｂ断面をＢ方向に見た断面概略図である。
このような容器１０は、電子レンジ加熱に対して耐性を有するプラスチック材料等により一体成形して作製されている。
【０００９】
容器１０において、１１は容器の底面部であり、該底面部１１の上面には、円錐台の突起１４を複数配置している。１２は、該底面部１１の全周を囲む側壁であり、該側壁１２の内側には、底面の淵部に沿って、加熱用食品を安定に載置し得るように、水平面１３ａを有する加熱用食品載置部１３を断続的に６個配置している。この載置部１３は、側壁１２の一部に接して設けているが、必ずしも接している必要はなく、底面の淵部に沿って、加熱用食品を安定に載置し得る態様であれば良い。但し、水平面１３ａの高さは、底面部１１の上面高さより高く設ける必要がある。
【００１０】
側壁１２は、底面部１１の全周に設けているが、必ずしも全周に設ける必要はない。側壁１２は、その上端部が、載置部１３における水平面１３ａの高さより高い部位と低い部位とを備えておれば良く、例えば、該水平面１３ａと同一高さの上端部を有していても良い。図１〜４に示す態様では、水平面１３ａより高さが高い部位１２ａと、該部位１２ａより低く、且つ水平面１３ａより高さが高い部位１２ｂと、水平面１３ａより高さが低い部位１２ｃとで側壁１２の上端部を形成している。
これら部位１２ａ〜１２ｃにより形成される側壁１２において、図２〜４に示されるように、水平面１３ａの高さと、部位１２ｃとの高さとの間にｈで示す高さ分の差が生じる。載置部１３の水平面１３ａに加熱用食品を載置した場合、加熱用食品の底面と、底面部１１の上面との間に空間が生じ、上記高さの差ｈの部分が、この容器内の空間と、容器外とを連通する通路として機能する。この際、突起１４の上端面の高さは、加熱用食品を支えるように水平面１３ａの高さと同一高さに設定している。ここで、側壁の部位１２ａ及び１２ｂは、加熱用食品を載置した場合の、該食品を容器内に安定に保持するストッパー等として機能する。また、載置部１３は、側壁１２における部位１２ａ及び部位１２ｂの箇所にそれぞれ１個づつ全て配置しているが、必ずしもこの態様に限定されず、上記通路が形成される態様であって、加熱用食品が安定して載置し得る態様であれば、載置部１３の配置箇所及び数は特に限定されない。
【００１１】
図５は、図１に示す容器１０に、冷凍ピザ１５を載置した態様を示す斜視図であり、図６は、図５に示す態様に、ラップフィルム１６により包装を施した状態を示す斜視図である。
通常、冷凍ピザ１５を電子レンジにより解凍加熱する際には、図５に示す状態で電子レンジ内に載置して行なわれる。この際、冷凍ピザ１５の下面は、載置部１３の水平面１３ａ及び突起１４により、容器１０の底面部１１から浮いた状態で加熱されるので、冷凍ピザ１５の底面も略均一に加熱され、この際生じる蒸気等が前述した側壁１２の部位１２ｃにより形成された通路から容器外に流出し、電子レンジ解凍加熱時におけるピザのクラスト部におけるサックリした食感の低下を抑制する。
【００１２】
電子レンジ調理終了後、ピザを別の皿等に移す際には、容器１０の側壁１２における部位１２ｂが、部位１２ａより低く設定されているので、該部位１２ｂ側から容易に取出すことができる。また、図６に示す包装を施した状態とする際において、各々の部位１２ａは、ラップフィルム１６が冷凍ピザの上面を押圧してピザのボリューム並びに外観を損なうことを防止するように機能する。このためには、部位１２ａは、ピザの上部面より高い位置となるように形成する。
【００１３】
一方、部位１２ｂは、部位１２ａより低い高さに設定されているので、ラップフィルム１６を該部位１２ｂ側において、容易に固定することができる。
この部位１２ｂは、例えば、容器１０の底面部１１の形状が実質的に４角形である場合、部位(b)が設けられた淵に沿った方向の部位(b)の長さが、該部位(b)が形成されている辺の１／２以上の長さになるように設定し、同一返上には部位(a)に相当する部位(b)より高い部位を設けないことが、上記作用を有効に得るために好ましい。
【００１４】
本発明の電子レンジ加熱用容器においては、例えば、図１に示す容器の強度を高めるために、底面部１１上に、対向する側壁１２に連通し、且つ突起１４の高さより低い高さで形成した突条等の補強部を設けることもできる。その他、本発明の機能を損ねない範囲において他の機能を有する部材を備えていても良い。また、突起１４を含む底面部に、容器の強度を維持し得る範囲で細孔等を設けることもできる。
【００１５】
【実施例】
以下、本発明を実施例及び比較例により更に詳細に説明するが、本発明はこれらに限定されるものではない。
実施例１
ピザクラストの底面に、穀類及び卵白の混合物を０．１ｇ／ｃｍ²になるように塗布し、塗布面を上にしてオーブン内で強火で焙焼した。放冷後、塗布面を下にして、ピザソース、チーズ、ペパロニ、ピーマン等をトッピングして−４０℃にて凍結することにより電子レンジ調理用冷凍ピザを調製した。
得られた冷凍ピザを、図１に示す容器１０に、図５に示す状態となるように載置し、電子レンジで解凍加熱調理を行なった。
得られたピザについて、クラストの食感(クリスピー感)を以下に示す評価基準に従い１０人のパネルに評価してもらった。結果は１０人の平均点で表１に示す。
＜評価基準(食感：クリスピー感)＞
５点：さくっとした軽い食感で、非常に歯切れが良い。
４点：さくっとして、少し歯切れが良い。
３点：さくっとした食感だが、少し重く、やや歯切れが悪い。
２点：ほとんどさくっとせず、やや歯切れが悪い。
１点：さくっとせず、重い食感で、歯切れが悪い。
【００１６】
比較例１
実施例１で調製した冷凍ピザと同じものを、図１の容器１０において、載置部１３及び突起１４を備えていない容器に載置し、同様な条件で電子レンジ調理を行ない、同様な評価を行なった。結果を表１に示す。この比較例１は、冷凍ピザの底面は、容器の底面部１１に接した状態で電子レンジ調理を行なった例である。
【００１７】
比較例２
図１の容器１０において、側壁１２の部位１２ｃの高さが、載置部１３の水平面１３ａの高さと同じであり、冷凍ピザ底面と容器の底面部１１との間に形成される空間が、容器外の空間と連通する通路を有さない状態で、実施例１で調製した冷凍ピザと同じものを載置し、同様な条件で電子レンジ調理を行ない、同様な評価を行なった。結果を表１に示す。
【００１８】
【表１】

【００１９】
【発明の効果】
本発明の電子レンジ加熱用容器は、底面部上面より高く設定された水平面を有する加熱用食品載置部を、側壁の内側に、底面の淵部に沿って断続的に複数設け、前記側壁の上端部の高さとして、該水平面の高さより高い部位と低い部位とを備えるので、加熱用食品を容器に安定に保持することができ、しかも、食品におけるサックリした食感の低下を抑制することができる。また、３段階に異なる高さの部位(a)〜(c)を備えることにより、加熱用食品を容器に安定して保持すると共に、加熱用食品を該容器に載置して流通させる際等におけるラップフィルム等により全体を包装した際に、加熱用食品の表面の型崩れ及びボリューム感の低下を抑制することができる。
【図面の簡単な説明】
【図１】本発明の電子レンジ加熱用容器の一態様を示す概略斜視図である。
【図２】図１における容器の正面図である。
【図３】図１におけるＡ−Ａ断面をＡ方向に見た断面概略図である。
【図４】図１におけるＢ−Ｂ断面をＢ方向に見た断面概略図である。
【図５】図１に示す容器に、冷凍ピザを載置した態様を示す斜視図である。
【図６】図５に示す態様に、ラップフィルムにより包装を施した状態を示す斜視図である。
【符号の説明】
１０：本発明の電子レンジ加熱用容器
１１：容器の底面部
１２：側壁
１２ａ：水平面１３ａより高さが高い部位
１２ｂ：部位１２ａより低く、且つ水平面１３ａより高さが高い部位
１２ｃ：水平面１３ａより高さが低い部位
１３：加熱用食品載置部
１３ａ：水平面
１４：突起
１５：冷凍ピザ
１６：ラップフィルム[0001]
BACKGROUND OF THE INVENTION
The present invention is a microwave oven heating capable of suppressing the reduction of a crispy texture such as pizza dough caused by heating when food such as frozen pizza is heated in a microwave oven and heating the back surface substantially uniformly. Related to the container.
[0002]
[Prior art]
In recent years, various frozen foods and processed foods have been developed, and microwave ovens are often used to cook or thaw and heat these foods. Although cooking with this microwave oven is simple, there is a problem that moisture and oil in the food are transferred during heating, and the crispy texture in the crust portion of fried foods and grilled foods such as pizza is reduced.
Therefore, in order to solve such problems caused by microwave cooking, attempts have been made to improve the food itself for heating the microwave, or to improve the container for placing the food when heating the microwave. ing.
As an improvement of the latter container, for example, in Japanese Utility Model Laid-Open No. 7-12023, when a deep-fried food is accommodated, the deep-fried food is floated from the inner surface of the bottom, and a plurality of protrusions that form a space between the deep-fried food and the bottom surface are provided. A fried food heating container is disclosed. JP-A-8-154827 discloses a dish in which a plurality of protrusions or ridges are provided on the upper surface of the bottom, and a hole through which the inner side and the outer side of the container are penetrated is formed on the inclined surface of the protrusions or ridges. Small bowls and containers with lids are disclosed.
However, in the improvement of the container, steam or the like during microwave heating stays at the bottom of the container even when a hole that penetrates the inside and outside of the container is formed on the inclined surface of the protrusion or protrusion. In many cases, the effect is still not sufficient.
[0003]
By the way, usually, food placed on a container for microwave heating is often distributed in a state of being wrapped with a wrap film or the like. In this case, in a state where a wrap film or the like is packaged so as to come into contact with the food surface at a certain pressure, there is a problem that the surface of the food is pressed, the volume of the whole food is lost, and the appearance is also deteriorated. For example, a container such as a dish that does not have a side wall has the highest height of food to be placed, so that a packaging wrap film or the like comes into contact with the food at a certain pressure, causing a problem during the distribution.
Therefore, in general, a container having a side wall set higher than the height of the upper surface of the food in order to stably hold the food itself in the container is provided on the entire circumference of the bottom surface. in use.
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 above-mentioned food bottom and the upper surface of the bottom of the container, It is difficult to suppress the decrease.
[0004]
[Problems to be solved by the invention]
Accordingly, an object of the present invention is to provide a microwave oven heating container that can effectively suppress a decrease in a crispy texture in a pizza crust portion, etc., which occurs when heated in a microwave oven, and can suppress uneven heating on the bottom surface of the food. It is to provide.
Another object of the present invention is to effectively suppress the lowering of the texture and the like, and when packaging with a wrap film or the like, it is possible to suppress a decrease in the volume and appearance of food placed on the container, Another object of the present invention is to provide a microwave heating container that can be easily packaged.
[0005]
[Means for Solving the Problems]
That is, according to the present invention, the heating food placing portion having the bottom surface portion (11), the side wall (12) surrounding the bottom surface portion, and the horizontal surface (13a) for placing the heating food (15). (13) a heating container for microwave oven (10), wherein a plurality of the heating food placing portions are intermittently provided inside the side wall along the bottom flange, The height of the horizontal surface of the mounting portion is set higher than the upper surface of the bottom surface portion, and the height of the upper end portion of the side wall is lower than the portion (12a, 12b) higher than the height of the horizontal surface of the food mounting portion for heating. A container for heating a microwave oven is provided, characterized in that the container is constituted by the part (12c).
In such a microwave heating container of the present invention, it is said that a plurality of heating food placing portions having a horizontal plane set higher than the upper surface of the bottom surface portion are provided intermittently along the heel portion of the bottom surface inside the side wall. According to the 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. And, as the height of the upper end portion of the side wall, it comprises a part higher and lower than the height of the horizontal plane, so that the food placed by the high part is more stably held in the container, and the microwave oven is used by the low part. During heating, steam or the like remaining in the space between the bottom surface of the container and the lower surface of the food to be placed is allowed to flow out of the container efficiently, and heating unevenness on the lower surface of the food is suppressed.
[0006]
According to the present invention, the height of the upper end portion of the side wall (12) is higher than the height of the horizontal surface (13a) of the heating food placing portion (13) (a) (12a), and the portion ( at least 3 of the part (b) (12b) lower than the height of a) and higher than the height of the horizontal surface of the heating food placing part and the part (c) (12c) lower than the horizontal surface of the heating food placing part The microwave oven container having different heights in stages is provided.
By providing the parts (a) to (c) having different heights in such three stages, the part (a) stably holds the heating food to be placed in the container, and the heating food is stored in the container. When wrapping the whole with a wrap film, etc. when placed on the market, the wrap film etc. presses the food for heating so as to suppress the deformation of the surface of the food for heating and the decrease in volume feeling. Suppresses contact. The part (c) functions as a passage for efficiently discarding steam or the like remaining in the space when heating in the microwave oven. The part (b) is fixed when it is difficult to fix the packaging film only with the part (a) when packaging the whole with a wrap film or the like when the food for heating is placed in the container and distributed. It also functions so as to facilitate the removal of the food for heating from the container.
[0007]
Furthermore, according to the present invention, the electronic device is characterized in that a plurality of independent protrusions (14) and / or protrusions having the same height as the horizontal surface of the food loading portion for heating are provided on the upper surface of the bottom surface portion. A range heating 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 protrusions and ridges when providing the protrusions and ridges are such that steam generated during microwave heating in the space formed by the bottom and bottom portions of the food for heating is formed by the part (c). It is desirable to determine and form appropriately so as not to block the passage that connects the space and the outside of the container.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, although the container for microwave oven heating of this invention is demonstrated still in detail with reference to drawings, this invention is not limited to this.
1 is a schematic perspective view showing one embodiment of a microwave heating container 10 of the present invention, FIG. 2 is a front view of the container 10 in FIG. 1, and FIG. 3 is a cross-sectional view taken along line AA in FIG. FIG. 4 is a schematic cross-sectional view of the B-B cross section in FIG. 1 viewed in the B direction.
Such a container 10 is produced by integrally molding with a plastic material having resistance to microwave heating.
[0009]
In the container 10, reference numeral 11 denotes a bottom surface portion of the container, and a plurality of frustoconical protrusions 14 are arranged on the top surface of the bottom surface portion 11. Reference numeral 12 denotes a side wall that surrounds the entire circumference of the bottom surface portion 11. Inside the side wall 12, a heating surface having a horizontal surface 13 a so that the food for heating can be stably placed along the bottom of the bottom surface. Six food food placement units 13 are intermittently arranged. Although this mounting part 13 is provided in contact with a part of the side wall 12, it is not necessarily in contact with the mounting part 13 as long as the food for heating can be stably placed along the heel part of the bottom surface. good. However, the height of the horizontal surface 13 a needs to be higher than the height of the upper surface of the bottom surface portion 11.
[0010]
The side wall 12 is provided on the entire circumference of the bottom surface portion 11, but is not necessarily provided on the entire circumference. The side wall 12 only needs to have a portion whose upper end portion is higher and lower than the height of the horizontal surface 13a in the mounting portion 13, for example, even if it has an upper end portion having the same height as the horizontal surface 13a. good. In the aspect shown in FIGS. 1-4, it is a side wall with the site | part 12a higher than the horizontal surface 13a, the site | part 12b lower than this site | part 12a and higher than the horizontal surface 13a, and the site | part 12c lower than the horizontal surface 13a. 12 upper end portions are formed.
In the side wall 12 formed by these parts 12a to 12c, as shown in FIGS. 2 to 4, a height difference indicated by h occurs between the height of the horizontal surface 13a and the height of the part 12c. When the food for heating is placed on the horizontal surface 13a of the placing portion 13, a space is created between the bottom surface of the food for heating and the top surface of the bottom surface portion 11, and the portion of the difference in height h is in the container. It functions as a passage that communicates between this space and the outside of the container. At this time, the height of the upper end surface of the protrusion 14 is set to the same height as the horizontal surface 13a so as to support the food for heating. Here, the

side wall portions

12a and 12b function as a stopper or the like for stably holding the food in the container when the food for heating is placed. Moreover, although the mounting part 13 is arrange | positioned one each in the location of the site | part 12a and the site | part 12b in the side wall 12, it is not necessarily limited to this aspect, It is an aspect in which the said channel | path is formed, Comprising: As long as the food for use can be stably placed, the placement location and the number of placement portions 13 are not particularly limited.
[0011]
FIG. 5 is a perspective view showing a state in which the frozen pizza 15 is placed on the container 10 shown in FIG. 1, and FIG. 6 is a perspective view showing a state in which the wrap film 16 is packaged in the aspect shown in FIG. FIG.
Usually, when the frozen pizza 15 is thawed and heated by the microwave oven, it is placed in the microwave oven in the state shown in FIG. At this time, the bottom surface of the frozen pizza 15 is heated in a state of floating from the bottom surface portion 11 of the container 10 by the horizontal surface 13a and the protrusion 14 of the mounting portion 13, so the bottom surface of the frozen pizza 15 is also heated substantially uniformly. The steam generated at this time flows out of the container from the passage formed by the portion 12c of the side wall 12 described above, and suppresses a decrease in the crispy texture at the crust portion of the pizza during heating in the microwave oven.
[0012]
When the pizza is moved to another plate after cooking the microwave oven, the portion 12b on the side wall 12 of the container 10 is set to be lower than the portion 12a, so that it can be easily taken out from the portion 12b side. Moreover, when it is set as the state which gave the packaging shown in FIG. 6, each site | part 12a functions so that the wrap film 16 may press the upper surface of frozen pizza and may prevent that the volume and external appearance of a pizza are impaired. For this purpose, the part 12a is formed to be higher than the upper surface of the pizza.
[0013]
On the other hand, since the part 12b is set to a height lower 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 surface portion 11 of the container 10 is substantially quadrangular, the length of the portion (b) in the direction along the ridge where the portion (b) is provided is the portion 12b. It is set so that the length of (b) is ½ or more of the side on which it is formed, and it is not provided with a part higher than the part (b) corresponding to the part (a) on the same return. Is preferable in order to obtain effectively.
[0014]
In the microwave heating container of the present invention, for example, in order to increase the strength of the container shown in FIG. 1, it is formed on the bottom surface portion 11 so as to communicate with the opposing side wall 12 and at a height lower than the height of the protrusion 14. It is also possible to provide a reinforcing part such as a protruding ridge. In addition, you may provide the member which has another function in the range which does not impair the function of this invention. In addition, 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]
【Example】
EXAMPLES Hereinafter, although an Example and a comparative example demonstrate this invention further in detail, this invention is not limited to these.
Example 1
A mixture of cereal and egg white was applied to the bottom of the pizza crust so as to be 0.1 g / cm ² , and baked in a high heat in an oven with the coated surface facing up. After standing to cool, a frozen pizza for cooking in a microwave oven was prepared by placing the pizza sauce, cheese, pepperoni, peppers, etc. on top of the coated surface 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 thawed and cooked in a microwave oven.
About the obtained pizza, crust texture (crispy feeling) was evaluated by a panel of 10 people according to the evaluation criteria shown below. The results are shown in Table 1 with an average score of 10 people.
<Evaluation criteria (Food texture: Crispy texture)>
5 points: A light and light texture and very crisp.
4 points: Slightly crisp.
3 points: A crunchy texture but a little heavy and slightly crisp.
2 points: Almost no crushing, slightly crisp.
1 point: It is not crunchy, has a heavy texture, and is crisp.
[0016]
Comparative Example 1
The same thing as the frozen pizza prepared in Example 1 is mounted in the container 10 of FIG. 1 in a container that does not include the mounting portion 13 and the protrusion 14, and microwave cooking is performed under the same conditions. Was done. The results are shown in Table 1. The comparative example 1 is an example in which microwave cooking was performed with the bottom surface of the frozen pizza in contact with the bottom surface portion 11 of the container.
[0017]
Comparative Example 2
In the container 10 of FIG. 1, the height of the portion 12 c of the side wall 12 is the same as the height of the horizontal surface 13 a of the mounting portion 13, and the space formed between the bottom surface of the frozen pizza and the bottom surface portion 11 of the container is The same thing as the frozen pizza prepared in Example 1 was mounted in the state which does not have the channel | path connected to the space outside a container, microwave oven cooking was performed on the same conditions, and the same evaluation was performed. The results are shown in Table 1.
[0018]
[Table 1]

[0019]
【The invention's effect】
The container for heating a microwave oven according to the present invention is provided with a plurality of heating food placing portions having a horizontal surface set higher than the upper surface of the bottom surface portion, intermittently along the heel portion of the bottom surface inside the side wall, As the height of the upper end portion is provided with a portion that is higher and lower than the height of the horizontal plane, the food for heating can be stably held in the container, and the reduction of the crispy texture in the food is suppressed. Can do. In addition, by providing the portions (a) to (c) having different heights in three stages, the food for heating is stably held in the container, and the food for heating is placed in the container and distributed. When the whole is packaged with a wrap film or the like, it is possible to suppress the deformation of the surface of the food for heating and the decrease in volume feeling.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing one embodiment of a container for heating a microwave oven according to 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. 1 as viewed in the A direction.
4 is a schematic cross-sectional view of the B-B cross section in FIG. 1 viewed in the B direction.
5 is a perspective view showing a state in which a frozen pizza is placed in the container shown in FIG. 1. FIG.
6 is a perspective view showing a state in which the embodiment shown in FIG. 5 is wrapped with a wrap film. FIG.
[Explanation of symbols]
10: Container for heating microwave oven of the present invention 11: Bottom portion 12 of container: Side wall 12a: Part 12b higher than horizontal plane 13a: Part 12c lower than part 12a and higher than horizontal plane 13a 12c: From horizontal plane 13a Low part 13: heating food placing part 13a: horizontal surface 14: protrusion 15: frozen pizza 16: wrap film

Claims

A heating container for a microwave oven comprising a bottom part, a side wall surrounding the bottom part, and a heating food placing part having a horizontal surface for placing the heating food,
A plurality of the heating food placing portions are intermittently provided on the inner side of the side wall along the bottom flange, and the height of the horizontal surface of the heating food placing portion is set higher than the top surface of the bottom portion. And the container for microwave oven heating characterized by the height of the upper end part of the said side wall being comprised by the site | part higher and lower than the height of the horizontal surface of the food mounting part for a heating.

The height of the upper end of the side wall is higher than the height of the horizontal surface of the food mounting portion for heating (a), lower than the height of the portion (a) and higher than the height of the horizontal surface of the food mounting portion for heating. The container for heating a microwave oven according to claim 1, wherein the microwave heating container has different heights in at least three stages: a high part (b) and a part (c) lower than the horizontal plane of the heating food placing part.

The microwave oven heating device according to claim 1 or 2, wherein a plurality of independent protrusions and / or protrusions having the same height as a horizontal surface of the heating food placing portion are provided on the upper surface of the bottom surface portion. container.