JP6839835B2 - Ingredients for oyster tempura, their frozen foods and their manufacturing methods - Google Patents
Ingredients for oyster tempura, their frozen foods and their manufacturing methods Download PDFInfo
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Description
本発明は、牡蠣の天ぷら用食材、その冷凍食品及びそれらの製造方法に関する。 The present invention relates to an oyster tempura food material, a frozen food product thereof, and a method for producing the same.
食文化として日本国内で広く浸透しているだけでなく、海外においても人気の日本食である天ぷらは、需要が高い一方で美味しく調理するためには熟練した技術を必要とする料理のひとつである。また、家庭においてはカラッと揚げるためには大量の高温油を要することから敬遠される傾向にある。 Tempura, which is a Japanese food that is not only widely used in Japan as a food culture but also popular overseas, is one of the dishes that requires skill in order to cook deliciously while it is in high demand. In addition, households tend to avoid it because it requires a large amount of high-temperature oil to fry it crisply.
そこで、食品工場において一定の規格の下で生産し、レストランやスーパーマーケットでは温め直すための油ちょうのみで簡便に提供できるように技術開発が行われてきた。また、特許文献１に記載されているような、家庭において油ちょうによる加熱を必要としない技術の開発も進められている。 Therefore, technological development has been carried out so that food factories produce products under certain standards, and restaurants and supermarkets can easily provide them with only oil shavings for reheating. In addition, as described in Patent Document 1, the development of a technique that does not require heating with an oil basin at home is also underway.
しかしながら、天ぷらは、専門店や蕎麦屋等で熟練の職人によって提供される場合と、種々の料理を提供するファミリーレストラン等又はスーパーマーケットの惣菜売り場等で購入する場合では大きく差が生じ、後者において見た目・食感・味が劣る場合が多い。大きな差が生じる主な要因は衣の形状である。 However, there is a big difference between the case where tempura is served by a skilled craftsman at a specialty store or soba shop, and the case where it is purchased at a family restaurant or the like or a side dish section of a supermarket that offers various dishes.・ In many cases, the texture and taste are inferior. The main factor that makes a big difference is the shape of the clothes.
また、天ぷら用の食品素材（ネタ）としては、魚介類や野菜類を中心とし、肉類等も含め多くの食材が用いられている一方で、旬の時期が限られること及び天ぷらのネタとするには表面の水分が非常に多く調理が難しいことを理由に、その美味しさとは裏腹に牡蠣の天ぷらはあまり一般的ではなく、簡便に美味しい牡蠣の天ぷらを調理する方法が求められていた。 In addition, as food materials (materials) for tempura, many ingredients including seafood and vegetables are used, and while many ingredients including meats are used, the season is limited and the material for tempura is used. Contrary to its deliciousness, oyster tempura is not very common because the surface is very moist and difficult to cook, and there has been a demand for a simple and delicious method of cooking oyster tempura.
本発明は、以上の事情を鑑みてなされたものであり、熟練した職人でなくとも適切な形状の衣を有する、見た目及び食感に優れた美味しい牡蠣の天ぷらを調理可能な牡蠣の天ぷら用食材、その冷凍食品及びそれらの製造方法を提供する。 The present invention has been made in view of the above circumstances, and is a food material for oyster tempura that can cook delicious oyster tempura with excellent appearance and texture, which has a batter of an appropriate shape even if it is not a skilled craftsman. , The frozen foods and methods for producing them.
本発明のある態様によれば、牡蠣の天ぷら用食材の製造方法であって、牡蠣の剥身に打ち粉を付着する工程と、前記打ち粉を有する牡蠣の剥身に天ぷら用バッター液を付着する工程と、前記天ぷら用バッター液と前記打ち粉とを有する牡蠣の剥身に揚げ玉を付着する工程と、を含み、前記天ぷら用バッター液の粘度は、２５℃において、４００〜１１００ｍＰａ・ｓである、牡蠣の天ぷら用食材の製造方法が提供される。 According to an aspect of the present invention, which is a method for producing a food material for tempura of oysters, a step of adhering flour to the stripped oysters and attaching a batter solution for tempura to the stripped oysters having the flour. The tempura batter liquid has a viscosity of 400 to 1100 mPa · s at 25 ° C., including a step of adhering fried balls to the stripped oysters having the tempura batter liquid and the dusting powder. A method for producing oyster tempura ingredients is provided.
発明者らが、簡便に美味しい牡蠣の天ぷらを調理可能な牡蠣の天ぷら用食材について検討を行ったところ、打ち粉を施した牡蠣の剥身に特定の粘度を有する天ぷら用バッター液を付着させ、揚げ玉（天かすに同じ）を纏わせた牡蠣の天ぷら用食材が、油ちょう等の加熱により見た目及び食感の良い美味しい牡蠣の天ぷらとなることを知見として得た。また、凹凸を有する細長い形状の揚げ玉を用いることで見た目及び食感が更に向上することを明らかとした。 When the inventors examined the ingredients for tempura of oysters that can easily cook delicious tempura of oysters, they attached a batter solution for tempura with a specific viscosity to the stripped oysters that had been dusted. It was found that the ingredients for oyster tempura wrapped with fried balls (same as tenkasu) become delicious oyster tempura with good appearance and texture when heated with oil broth or the like. In addition, it was clarified that the appearance and texture are further improved by using the elongated fried balls having irregularities.
本発明の別の態様によれば、前記製造方法により得られる牡蠣の天ぷら用食材及びこれを冷凍していられる牡蠣の天ぷら用冷凍食材が提供される。さらに、前記牡蠣の天ぷら用食材または前記牡蠣の天ぷら用冷凍食材を加熱して得られる、牡蠣の天ぷらが提供される。 According to another aspect of the present invention, the oyster tempura food material obtained by the above-mentioned production method and the oyster tempura frozen food material obtained by freezing the oyster tempura food material are provided. Further, an oyster tempura obtained by heating the oyster tempura food material or the oyster tempura frozen food material is provided.
本発明によれば、熟練した職人でなくとも適切な形状の衣を有する、見た目及び食感に優れた美味しい牡蠣の天ぷらを調理することができるという効果を奏する。 According to the present invention, even a non-skilled craftsman can cook delicious oyster tempura having an appropriate shape and having an excellent appearance and texture.
以下、本発明の実施の形態について説明する。以下の実施形態は、例示であって、本発
明の範囲は、以下の実施形態で示すものに限定されない。
Hereinafter, embodiments of the present invention will be described. The following embodiments are examples, and the scope of the present invention is not limited to those shown in the following embodiments.
本実施形態の牡蠣の天ぷら用食材の製造方法は、牡蠣の剥身に打ち粉を付着する工程と、前記打ち粉を有する牡蠣の剥身に天ぷら用バッター液を付着する工程と、前記天ぷら用バッター液と前記打ち粉とを有する牡蠣の剥身に揚げ玉を付着する工程と、を含み、前記天ぷら用バッター液の粘度は、２５℃において、４００〜１１００ｍＰａ・ｓである、牡蠣の天ぷら用食材の製造方法である。
このような製造方法によれば、熟練した職人でなくとも適切な形状の衣を有する、見た目及び食感に優れた牡蠣の天ぷらを提供することができる。また、すでにバッター液及び揚げ玉が付着しているため加熱時に打ち粉を施し、バッター液調整したうえでバッター液を付ける等の煩雑な工程を経ることなく、高品質な牡蠣の天ぷらを簡便且つ速やかに提供することが可能となる。以下、この製造方法の各要素についてより詳細に説明する。
The method for producing the oyster tempura foodstuff of the present embodiment includes a step of adhering flour to the oyster strip, a step of adhering the tempura batter liquid to the oyster strip having the flour, and the method for tempura. The tempura foodstuff for tempura, which comprises a step of adhering fried balls to the stripped oyster having the batter liquid and the dusting powder, and the viscosity of the tempura batter liquid is 400 to 1100 mPa · s at 25 ° C. It is a manufacturing method of.
According to such a manufacturing method, it is possible to provide oyster tempura having an appropriate shape and having an excellent appearance and texture even if it is not a skilled craftsman. In addition, since the batter liquid and fried balls have already adhered, high-quality oyster tempura can be easily and quickly prepared without going through complicated processes such as dusting during heating, adjusting the batter liquid, and then applying the batter liquid. It will be possible to provide to. Hereinafter, each element of this manufacturing method will be described in more detail.
＜牡蠣の剥身＞
本実施形態で用いる牡蠣の種類は特に限定されないが、カキ目に属する貝の中でも、イタボガキ科に属する牡蠣が挙げられる。そして、本実施形態で用いる牡蠣としては、イタボガキ科に属する牡蠣の中でも、マガキ属又はイタボガキ属に属する牡蠣が好ましい。
ここで、マガキ属に属する牡蠣としては、例えば、マガキ（真牡蠣）、イワガキ（岩牡蠣）、スミノエガキ（住之江牡蠣）などが好適に用いられる。また、イタボガキ属に属する牡蠣としては、例えば、イタボガキ（板甫牡蠣）又はヨーロッパヒラガキなどが好適に用いられる。
<Stripping oysters>
The type of oyster used in this embodiment is not particularly limited, but among the shellfish belonging to the order Ostreoida, oysters belonging to the family Ostrea oysters can be mentioned. As the oysters used in the present embodiment, among the oysters belonging to the family Ostrea oysters, oysters belonging to the genus Crassostrea or the genus Ostrea are preferable.
Here, as the oysters belonging to the genus Crassostrea, for example, oysters (true oysters), crassostrea nipponica (rock oysters), suminoe oysters (Suminoe oysters) and the like are preferably used. Further, as the oyster belonging to the genus Ostrea, for example, Ostrea edulis (Oyster oyster) or Ostrea edulis is preferably used.
また、牡蠣の剥身は、未加熱又は加熱済みのいずれの状態の牡蠣の剥身でもよく、場合により冷凍された牡蠣の剥身でも、一度冷凍後解凍又は半解凍された牡蠣の剥身でもよい。ここで、加熱方法は特に限定されないが、本実施形態の牡蠣の天ぷら用食材の製造方法において、蒸された牡蠣の剥身を得る方法は、例えば、牡蠣の剥身をセイロで蒸して得る方法や、殻つきの牡蠣を蒸した後に牡蠣の剥き身を取り出して得る方法、高温・高圧の乾燥蒸気で蒸して得る方法、低温・低圧の湿り蒸気で蒸して得る方法などが挙げられる。これらの中でも好ましくは、１００℃〜１０５℃程度かつ０ｋｇｆ／ｃｍ２Ｇ以上０．５ｋｇｆ／ｃｍ２Ｇ以下の低温・低圧の湿り蒸気を用いて牡蠣の剥身を蒸して得る方法である。なぜならば、高温・高圧の乾燥蒸気を用いる場合に比べて短時間のうちに二枚貝の剥身の中心温度を上昇させることができ、食中毒の原因となる菌やウイルス等を短時間のうちに失活させることができる上に、その間牡蠣の表面温度が中心温度に比べて過度に加熱されにくいため、牡蠣の旨味・食感などの低下を抑制することができるからである。さらに好ましくは、上記牡蠣の剥身を蒸して得る方法は、液体中に浸されていない状態の牡蠣に対して牡蠣１ｋｇあたり蒸気量０．１ｋｇ／ｈ以上で上記減圧蒸気を噴射することによって蒸す方法である。最も好ましくは、上記低温・低圧の湿り蒸気は、１００℃以上の温度かつ３ｋｇｆ／ｃｍ２Ｇ以上の圧力の高圧蒸気を用いて水を沸騰させることによって得る。このように、旨味・食感を損なうことなく加熱殺菌された牡蠣を牡蠣の天ぷら用食材に用いた場合には、調理する際に中心まで十分に加熱がされなくても、安全な美味しい牡蠣の天ぷらを提供できる点で優れている。 In addition, the oyster stripping may be either unheated or heated oyster stripping, in some cases frozen oyster stripping, or once frozen and thawed or semi-thawed oyster stripping. Good. Here, the heating method is not particularly limited, but in the method for producing the oyster tempura foodstuff of the present embodiment, the method of obtaining the steamed oyster strips is, for example, the method of steaming the oyster strips with a steamer. Examples include a method of steaming oysters with shells and then taking out the oyster strips, a method of steaming with high-temperature and high-pressure dry steam, and a method of steaming with low-temperature and low-pressure moist steam. Among these, a method obtained by steaming oyster strips using low-temperature and low-pressure moist steam at about 100 ° C. to 105 ° C. and 0 kgf / cm 2 G or more and 0.5 kgf / cm 2 G or less is preferable. This is because the core temperature of bivalve molluscs can be raised in a short time compared to the case of using high temperature and high pressure dry steam, and bacteria and viruses that cause food poisoning are lost in a short time. This is because the surface temperature of the oysters is less likely to be excessively heated than the core temperature during that time, so that the deterioration of the taste and texture of the oysters can be suppressed. More preferably, the method of steaming the oyster strips is to steam the oysters that have not been immersed in the liquid by injecting the decompressed steam at a steam amount of 0.1 kg / h or more per 1 kg of oysters. The method. Most preferably, the low-temperature, low-pressure wet steam is obtained by boiling water using high-pressure steam having a temperature of 100 ° C. or higher and a pressure of 3 kgf / cm 2 G or higher. In this way, when oysters that have been heat-sterilized without spoiling the taste and texture are used as ingredients for tempura of oysters, they are safe and delicious even if they are not sufficiently heated to the center when cooking. It is excellent in that it can provide tempura.
＜打ち粉＞
打ち粉は、バッター液の付着性を高め、牡蠣の天ぷら用食材を油ちょう等により加熱する際に身と衣が乖離するのを防ぐ効果がある。生牡蠣、蒸牡蠣、冷凍蒸牡蠣いずれの状態の牡蠣に対しても打ち粉を施さない場合には、衣が身から剥がれやすくなり見た目及び食感を損ない易い。なお、打ち粉としては小麦粉、片栗粉、米粉、とうもろこしでん粉、ベーキングパウダー、卵白粉、脱脂大豆粉、パンプキンパウダー、そば粉、天ぷら粉、から揚げ粉等を用いることができる。その他、添加物を含んでも良い。好ましくは、小麦粉及び天ぷら粉を用いる。また、付着させる打ち粉の量は、牡蠣の剥身１００質量部に対し２〜２０質量部である。好ましくは３〜１５質量部である。より好ましくは５〜１２質量部である。
<Dusting>
Dusting has the effect of increasing the adhesion of the batter liquid and preventing the batter from separating from the body when the oyster tempura ingredients are heated with oil. If the oysters in any state of raw oysters, steamed oysters, and frozen steamed oysters are not dusted, the batter is likely to come off from the body and the appearance and texture are likely to be impaired. As the flour, wheat flour, potato starch, rice flour, corn flour, baking powder, egg white flour, defatted soybean flour, pumpkin flour, buckwheat flour, tempura flour, fried chicken flour and the like can be used. In addition, additives may be included. Preferably, wheat flour and tempura flour are used. The amount of dusting powder to be attached is 2 to 20 parts by mass with respect to 100 parts by mass of oyster strips. It is preferably 3 to 15 parts by mass. More preferably, it is 5 to 12 parts by mass.
＜バッター液＞
バッター液は、それ自身が天ぷらの衣となると同時に、揚げ玉を身に付着させる。そのため、牡蠣の剥身の周りに留まり且つ揚げ玉を身の回りに留めるために適切な粘度を有する必要がある。好ましくは、２５℃において、４００〜１１００ｍＰａ・ｓである。より好ましくは、２５℃において、７００〜１０００ｍＰａ・ｓである。粘度が４００ｍＰａ・ｓより低いと揚げ玉を付着させる力が弱く、揚げ玉を身の回りに留めることができない。さらにある程度の高い粘度を有するバッター液を用いることで、加熱時に牡蠣の身からのエキスの流出を抑えることができ、旨みを閉じ込めるとともに焦げも防ぐことができる。一方、粘度が１１００ｍＰａ・ｓより高いと作業性が低下し生産性が悪くなる。また、付着させるバッター液の量は、牡蠣の剥身１００質量部に対し２０〜７５質量部である。好ましくは３０〜６５質量部である。より好ましくは３５〜６０質量部である。
<Batter liquid>
The batter liquid itself becomes a tempura batter and at the same time attaches fried balls to the body. Therefore, it is necessary to have an appropriate viscosity to stay around the oyster strips and to keep the fried balls around. Preferably, it is 400 to 1100 mPa · s at 25 ° C. More preferably, it is 700 to 1000 mPa · s at 25 ° C. If the viscosity is lower than 400 mPa · s, the force to attach the fried balls is weak, and the fried balls cannot be kept around. Furthermore, by using a batter liquid having a high viscosity to some extent, it is possible to suppress the outflow of the extract from the oyster body during heating, and it is possible to confine the taste and prevent burning. On the other hand, if the viscosity is higher than 1100 mPa · s, workability is lowered and productivity is lowered. The amount of the batter liquid to be attached is 20 to 75 parts by mass with respect to 100 parts by mass of the oyster strips. It is preferably 30 to 65 parts by mass. More preferably, it is 35 to 60 parts by mass.
バッター液は、小麦粉、片栗粉、米粉等と水により調製されるが、さらに大豆たんぱく、脱脂大豆、大豆油、膨張剤（炭酸水素ナトリウム等）、乳化剤（グリセリン脂肪酸エステル等）、増粘剤（加工でん粉等）等の添加物を含んでも良い。 Batter liquid is prepared from wheat flour, potato starch, rice flour, etc. and water, but also soybean protein, defatted soybean, soybean oil, leavening agent (sodium hydrogen carbonate, etc.), emulsifier (glycerin fatty acid ester, etc.), thickener (processing). Additives such as (rice flour, etc.) may be included.
＜揚げ玉＞
揚げ玉は、天ぷらを揚げた後に油中に残る天ぷらの衣の滓のことを従来は意味していた。揚げ玉を油の中に残しておくと焦げ、油を劣化させることから都度取り除く必要があり、最終的には廃棄物として処理される。しかし、一方でうどん、そば、お好み焼き等の加薬として用いられることがあり、近年では、多種多用な加工食品に用いられている。そのため、揚げ玉そのものを製造販売するようになっている。
<Fried ball>
Fried balls have traditionally meant the slag of tempura batter that remains in the oil after frying the tempura. If the fried balls are left in the oil, they will burn and deteriorate the oil, so they must be removed each time and eventually treated as waste. However, on the other hand, it is sometimes used as an additive for udon, soba, okonomiyaki, etc., and in recent years, it has been used in a wide variety of processed foods. Therefore, the fried balls themselves are manufactured and sold.
揚げ玉（天かす）は、本質的には小麦粉を加熱により固めた油脂成分を含む固形物であるが、一般的には、例えば、揚げ玉用バッター液を作成し、油で加熱し製造される。揚げ玉用バッター液は、小麦粉及び水により調製されるが、小麦粉以外に澱粉、膨張剤、調味料、その他溶き卵等の材料を加えて調整することも可能である。 The fried ball (tenkasu) is essentially a solid substance containing an oil and fat component obtained by heating wheat flour, but is generally produced, for example, by preparing a batter solution for fried ball and heating it with oil. The fried ball batter liquid is prepared from wheat flour and water, but it can also be adjusted by adding ingredients such as starch, leavening agent, seasoning, and other beaten eggs in addition to wheat flour.
市販されている揚げ玉は、ほぼ均一な丸い形をしていることが多いが、この様な揚げ玉を付着させて衣を形成させた場合、見た目も食欲を誘うものではなく、食感も重く硬くなってしまう。一般的に、天ぷらの衣はハナが咲いたような形状が好まれる。見た目も美しく、食感もサクッと軽くなるからである。よって、本実施形態の牡蠣の天ぷら用食材に付着させる揚げ玉の形状は、加熱により見た目及び食感に優れた牡蠣の天ぷらを得る上で必要な、適切な形状の衣を形成するため、ほぼ均一な丸い形はなく、凹凸を有する細長い形状であることが求められる。図１に示される揚げ玉の形が良い形の揚げ玉の例であり、図２に示される揚げ玉の形が不良な形の揚げ玉の例である。 Commercially available fried balls often have an almost uniform round shape, but when such fried balls are attached to form a batter, the appearance does not induce appetite, and the texture is heavy and hard. turn into. In general, tempura batter is preferred to have a flower-like shape. This is because it looks beautiful and has a crispy texture. Therefore, the shape of the fried balls attached to the oyster tempura foodstuff of the present embodiment is almost uniform in order to form a batter of an appropriate shape necessary for obtaining oyster tempura having excellent appearance and texture by heating. It is required to have an elongated shape with irregularities without a round shape. It is an example of a fried ball having a good shape shown in FIG. 1 and an example of a fried ball having a bad shape shown in FIG.
本明細書においては、揚げ玉の形状は、写真撮影した画像Adobe Photoshopにより解析により解析することにより特定される。具体的には、各揚げ玉を画像処理により切り出し、高さ、幅、面積、外周をもとに形状を解析する。 In the present specification, the shape of the fried ball is specified by analyzing the photographed image by Adobe Photoshop. Specifically, each fried ball is cut out by image processing, and the shape is analyzed based on the height, width, area, and outer circumference.
凹凸を有する細長い形状であることの１つ指標として、アスペクト比がある。長辺と短辺の比であるアスペクト比は、１より大きくなるに従いより細長い形状となることを意味する。本発明の実施形態においては、好ましくは無作為に抽出した１０個の揚げ玉のアスペクト比の平均が１．５以上であり、より好ましくは１．７５以上であり、さらに好ましくは２．０以上である。また、細長過ぎる場合は、天ぷらの衣の見た目としては不適当であるため、上記アスペクト比の平均は、５．０以下である。ここで、短辺と長辺はAdobe Photoshopを使用した解析における高さと幅（いずれを長辺でも短辺としてもよい）を使用する。 The aspect ratio is one of the indexes of the elongated shape having irregularities. The aspect ratio, which is the ratio of the long side to the short side, means that the shape becomes more elongated as it becomes larger than 1. In the embodiment of the present invention, the average aspect ratio of 10 randomly selected fried balls is preferably 1.5 or more, more preferably 1.75 or more, still more preferably 2.0 or more. is there. If it is too slender, it is unsuitable for the appearance of tempura batter, so the average aspect ratio is 5.0 or less. Here, the short side and the long side use the height and width (either the long side or the short side may be used) in the analysis using Adobe Photoshop.
また、凹凸を有する細長い形状であることの１つ指標として、真円度がある。真円から引き延ばされた多角形へ変形するに従い、真円度は１から０に近づいていく。よって、引き延ばされた多角形となること、すなわち凹凸を有する細長い形状であることは真円度をもとに評価することができる。細長いだけでなく凹凸を有する揚げ玉かどうかは、アスペクト比の基準だけなく、真円度の基準を満たしているかも重要な指標である。本発明の実施形態においては、好ましくは無作為に抽出した１０個の揚げ玉の真円度の平均が０．６以下であり、より好ましくは０．５以下であり、さらに好ましくは０．４５以下である。さらに好ましくは、０．４以下である。また、揚げ玉の製造、天ぷらの衣の見た目を考慮すると、上記真円度の平均は、０．１以上である。ここで、Adobe Photoshopにより算出される真円度は４πi（i＝面積／（外周）２）によって定義される（Adobehttps://helpx.adobe.com/jp/photoshop/using/measurement-photoshop-extended.html）。 Further, there is roundness as one index of the elongated shape having irregularities. The roundness approaches 0 to 0 as it transforms from a perfect circle to a stretched polygon. Therefore, it can be evaluated based on the roundness that the polygon is stretched, that is, the elongated shape has irregularities. Whether or not the fried ball is not only elongated but also uneven is an important index not only for the aspect ratio but also for the roundness. In the embodiment of the present invention, the average roundness of 10 randomly selected fried balls is preferably 0.6 or less, more preferably 0.5 or less, still more preferably 0.45 or less. Is. More preferably, it is 0.4 or less. Further, considering the production of fried balls and the appearance of tempura batter, the average roundness is 0.1 or more. Here, the roundness calculated by Adobe Photoshop is defined by 4πi (i = area / (outer circumference) 2 ) (Adobe https://helpx.adobe.com/jp/photoshop/using/measurement-photoshop-extended). .html).
さらに、凹凸について規定するならば、平滑度を指標として用いることができる。平滑度は、揚げ玉の外周Ｌ１と、揚げ玉と同じ短長辺比及び同じ面積を有する楕円の外周Ｌ２と、の比（Ｌ２／Ｌ１）によって定義される。本発明の実施形態においては、好ましくは無作為に抽出した１０個の揚げ玉の平滑度の平均が０．８０以下であり、より好ましくは０．７５以下である。また、揚げ玉の製造、天ぷらの衣として舌触りを考慮すると、上記平滑度の平均は、０．１以上である。ここで、短辺と長辺はAdobe Photoshopを使用した解析における高さと幅（いずれを長辺でも短辺としてもよい）、及び外周Ｌ１を使用し、近似式（Ｉ）を用いて外周Ｌ２を算出した。(Ｉ)において、ａは長辺、ｂは短辺を表す。 Further, if the unevenness is specified, the smoothness can be used as an index. The smoothness is defined by the ratio (L 2 / L 1 ) of the outer circumference L 1 of the fried ball and the outer circumference L 2 of the ellipse having the same short-long side ratio and the same area as the fried ball. In the embodiment of the present invention, the average smoothness of 10 randomly selected fried balls is preferably 0.80 or less, more preferably 0.75 or less. Further, considering the production of fried balls and the texture of tempura batter, the average smoothness is 0.1 or more. Here, the height and width of the analysis short side and long side using Adobe Photoshop (or a short side in any of the long sides), and using the outer circumference L 1, the outer periphery using an approximate formula (I) L 2 was calculated. In (I), a represents a long side and b represents a short side.
また、揚げ玉の油脂含有量は、揚げ玉全体の質量を１００質量％とした場合、好ましくは５０質量％以下であり、より好ましくは４５質量％以下であり、さらに好ましくは４０質量％以下である。油脂含有量が多すぎて、５０質量％より多い場合には、加熱後に油っぽくなりやすく重い味と感じてしまうことがある。また、油脂含有量が多すぎると、バッター液との密着性が悪く身の回りに留まりにくい傾向にある。油脂含有量は、遠心分離器等を用いて減少させることが可能である。 The fat content of the fried balls is preferably 50% by mass or less, more preferably 45% by mass or less, and further preferably 40% by mass or less, when the total mass of the fried balls is 100% by mass. If the fat content is too high and is more than 50% by mass, it tends to become oily after heating and may be perceived as having a heavy taste. On the other hand, if the oil and fat content is too high, the adhesion to the batter liquid is poor and it tends to be difficult to stay around. The oil and fat content can be reduced by using a centrifuge or the like.
また、揚げ玉は、好ましくはバッター液の付着した牡蠣の剥身の表面積を１００％としたときに、剥身の表面積の３０〜１００％を覆っており、より好ましくは５０〜１００％を覆っており、さらに好ましくは７０〜１００％を覆っており、最も好ましくは８０〜１００％を覆っている。なお、揚げ玉の覆っている面積の割合は、３０、４０、５０、６０、６５、６６、６７、６８、６９、７０、７１、７５、７９、８０、８５、９０、９５、９８、１００％であり、ここで例示した数値の何れか２つの間の値の範囲内であってもよい。 Further, the fried ball preferably covers 30 to 100% of the surface area of the stripped oyster, and more preferably 50 to 100%, when the surface area of the stripped oyster to which the batter liquid is attached is set to 100%. It covers 70 to 100%, more preferably 80 to 100%, and most preferably 80 to 100%. The ratio of the area covered by the fried balls is 30, 40, 50, 60, 65, 66, 67, 68, 69, 70, 71, 75, 79, 80, 85, 90, 95, 98, 100%. It may be within the range of the value between any two of the numerical values exemplified here.
また、付着させる揚げ玉の量は、好ましくは牡蠣の剥身１００質量部に対し３０〜１５０質量部であり、より好ましくは５０〜１３０質量部であり、さらに好ましくは７０〜１２０質量部である。 The amount of fried balls to be attached is preferably 30 to 150 parts by mass, more preferably 50 to 130 parts by mass, and further preferably 70 to 120 parts by mass with respect to 100 parts by mass of the oyster strip.
＜牡蠣の天ぷら用冷凍食材＞
本実施形態によって得られた牡蠣の天ぷら用食材を冷凍することで、調理済み冷凍食品を得ることができる。冷凍保存しておけば、牡蠣の旬以外の時期においても牡蠣の天ぷらを食すことが可能である。
<Frozen ingredients for oyster tempura>
A cooked frozen food can be obtained by freezing the oyster tempura food material obtained by the present embodiment. If stored frozen, it is possible to eat oyster tempura even when the oysters are not in season.
本実施形態における揚げ玉が付着した牡蠣の天ぷら用冷凍食材の製造方法は、本実施形態によって得られた牡蠣の天ぷら用食材を冷凍するのであれば、特に限定しないが、公知の方法を用いることができる。例えば、−２０℃以下の冷気を暴露して本実施形態によって得られた牡蠣の天ぷらを冷凍することが挙げられる。また、冷気の温度は、特に限定しないが、例えば−３０℃以下、−４０℃以下であってもよい。なぜなら、蒸し牡蠣に対して暴露される冷気の温度が低いほど上記牡蠣の天ぷらを短時間で効率よく冷凍することができるからである。 The method for producing the frozen oyster tempura foodstuff to which the fried balls are attached in the present embodiment is not particularly limited as long as the oyster tempura foodstuff obtained by the present embodiment is frozen, but a known method may be used. it can. For example, the oyster tempura obtained by the present embodiment may be frozen by exposing it to cold air of −20 ° C. or lower. The temperature of the cold air is not particularly limited, but may be, for example, −30 ° C. or lower and −40 ° C. or lower. This is because the lower the temperature of the cold air exposed to the steamed oysters, the more efficiently the oyster tempura can be frozen in a short time.
＜牡蠣の天ぷら用食材の加熱方法＞
本実施形態によって得られた牡蠣の天ぷら用食材を加熱する方法は、特に限定しないが、公知の方法を用いることができる。なお、本実施形態における加熱は、特に限定しないが、焼く、油ちょう、熱した空気による暴露や、赤外線照射、電磁波照射等が挙げられる。好ましくは、油ちょうである。油ちょうについては、公知の方法を用いることができる。特に限定しないが、例えば、天ぷら鍋やフライヤー等を使用することができる。フライヤーはガス若しくは電気を熱源としたもので、自動式、連続式、手揚げ式、卓上型など何れも使用することができる。また、油ちょうに使用する油としては、特に限定しないが、例えば、植物性油脂、動物性油脂が挙げられる。植物性油脂として、例えば大豆油、パーム油、ひまわり油、サフラワー油、なたね油（キャノーラ油を包含する。）、綿実油、ごま油、トウモロコシ油、こめ油、落花生油、オリーブ油、２以上の植物油を調合した食用調合油等が挙げられる。また、動物性油脂として、牛脂、ラード、魚油、鯨油、乳脂等が挙げられる。
<How to heat ingredients for oyster tempura>
The method for heating the oyster tempura foodstuff obtained by the present embodiment is not particularly limited, but a known method can be used. The heating in the present embodiment is not particularly limited, and examples thereof include baking, oiling, exposure to hot air, infrared irradiation, and electromagnetic wave irradiation. It is preferably oil. For the oil butterfly, a known method can be used. Although not particularly limited, for example, a tempura pot, a fryer, or the like can be used. The fryer uses gas or electricity as a heat source, and can be used as an automatic type, a continuous type, a hand-lifting type, or a desktop type. The oil used for the oil is not particularly limited, and examples thereof include vegetable oils and fats and animal oils and fats. As vegetable oils and fats, for example, soybean oil, palm oil, sunflower oil, saflower oil, rapeseed oil (including canola oil), cottonseed oil, sesame oil, corn oil, rice bran oil, peanut oil, olive oil, and two or more vegetable oils are blended. Examples include edible blended oil. Examples of animal fats and oils include beef tallow, lard, fish oil, whale oil, milk fat and the like.
本実施形態によって得られた牡蠣の天ぷら用食材を油ちょうにより加熱する際の加熱温度は、牡蠣の天ぷらが製造できれば、特に限定しないが、１５０℃以上２００℃以下が好ましい。加熱温度が１５０℃より低いと調理時間が長くなる場合がある。加熱温度が２００℃より高いと高温のため、加熱時間の調製が難しくなる場合があり、牡蠣が中心まで温まる前に表面が焦げる原因となり得る。 The heating temperature when the oyster tempura foodstuff obtained by the present embodiment is heated with an oil pan is not particularly limited as long as the oyster tempura can be produced, but is preferably 150 ° C. or higher and 200 ° C. or lower. If the heating temperature is lower than 150 ° C., the cooking time may become longer. If the heating temperature is higher than 200 ° C., it may be difficult to adjust the heating time due to the high temperature, which may cause the surface of the oyster to be scorched before it is warmed to the center.
本実施形態によって得られた牡蠣の天ぷら用食材を油ちょうにより加熱する際の加熱時間は、牡蠣の天ぷらが製造できれば、特に限定しないが、３０秒以上４分以下が好ましい。加熱時間が３０秒より短いと牡蠣の天ぷらにおける牡蠣が冷たいままの場合がある。加熱時間が４分より長いと油ちょうした際に衣が油を吸って食した際のサクサク感が低減する場合がある。 The heating time for heating the oyster tempura foodstuff obtained by the present embodiment with oil is not particularly limited as long as the oyster tempura can be produced, but it is preferably 30 seconds or more and 4 minutes or less. If the heating time is shorter than 30 seconds, the oysters in the oyster tempura may remain cold. If the heating time is longer than 4 minutes, the crispy feeling when the batter absorbs the oil and eats when oiled may be reduced.
以下、本発明を実験例によりさらに説明するが、本発明はこれらに限定されるものでは
ない。なお、見た目、食感、美味しさについては十分なトレーニングを積んだ複数の官能パネラーが肉眼で外観を観察し、また実際に試食した結果である。
Hereinafter, the present invention will be further described with reference to experimental examples, but the present invention is not limited thereto. It should be noted that the appearance, texture, and deliciousness are the results of observing the appearance with the naked eye and actually tasting it by a plurality of sensual panelists who have been sufficiently trained.
＜実験例１：打ち粉＞
生牡蠣、蒸牡蠣、冷凍蒸牡蠣の３つ状態の牡蠣に対し、打ち粉を施した場合と施さない場合の揚げ玉が付着した牡蠣の天ぷら用食材に関して、油ちょうによる加熱後の状態の比較を行った。
打ち粉は、天ぷら粉を用い表面を覆うように施した。そして、食品素材として小麦粉、澱粉、米粉、大豆たんぱく、脱脂大豆、大豆油、添加物として膨張剤（炭酸水素ナトリウム・ミョウバン、リン酸カルシウム、アンモニウムミョウバン）及び乳化剤としてグリセリン脂肪酸エステル、増粘剤として加工澱粉を含み、水を用いて調製された、２５℃において、粘度が約８００ｍＰａ・ｓであるバッター液付着させ、さらに、油脂含有量３０〜４０％であり、無作為に抽出した１０個のアスペクト比の平均が２．０以上であり、真円度の平均が０．５以下であり、０．８５以下である凹凸を有する細長い形状の揚げ玉を付着させた牡蠣の天ぷら用食材を用意した。これを１７０℃の揚げ油（パーム油を主成分とする）で約３分加熱した牡蠣の天ぷらの見た目について評価した結果を表１に示す。加熱後に衣がしっかり身と密着し覆っている図３（Ａ）のような場合に「○」、一部問題がある場合に「△」、はがれ身が剥き出しの図３（Ｂ）の様な場合に「×」とした。食感は、サクッと軽い場合に「○」、一部問題がある場合に「△」、食感が重い場合には「×」とした。美味しさは、見た目・食感・味を総合的に評価し、良い場合に「○」、一部問題がある場合に「△」、悪い場合に「×」とした。
<Experimental example 1: Dusting>
Comparison of the oyster tempura ingredients with fried balls attached to the oysters in the three states of raw oysters, steamed oysters, and frozen steamed oysters, with and without flouring, after heating with oil. went.
The dusting powder was applied so as to cover the surface using tempura powder. Then, wheat flour, starch, rice flour, soybean protein, defatted soybean, soybean oil as food materials, swelling agent (sodium hydrogen carbonate / myoban, calcium phosphate, ammonium myoban) as additives, glycerin fatty acid ester as emulsifier, modified starch as thickener. 10 aspect ratios randomly selected, which were prepared with water and adhered to a batter solution having a viscosity of about 800 mPa · s at 25 ° C. and a fat content of 30-40%. An ingredient for tempura of oysters to which an elongated fried ball having an uneven shape having an average of 2.0 or more, an average roundness of 0.5 or less, and 0.85 or less was prepared was prepared. Table 1 shows the results of evaluating the appearance of oyster tempura heated at 170 ° C. with frying oil (mainly palm oil) for about 3 minutes. "○" when the batter is firmly attached to the body after heating and covering it, "△" when there is some problem, as shown in Fig. 3 (B) where the peeled body is exposed. In the case, it was set as "x". The texture was "○" when it was crispy and light, "△" when there were some problems, and "×" when the texture was heavy. The taste was evaluated comprehensively by appearance, texture, and taste, and was rated as "○" when it was good, "△" when there were some problems, and "×" when it was bad.
打ち粉を施した表１のＮｏ．１〜Ｎｏ．３の場合には、いずれの状態の牡蠣においても揚げ玉を含む衣がしっかりと付着しており、見た目の良い食欲を誘う外観となり、食感がよく美味しい牡蠣の天ぷらとなった。一方、打ち粉を施さなかったＮｏ．４〜Ｎｏ．６場合には、バッター液の付着が悪く、結果として加熱後の衣が剥がれ易くなり見た目が悪かった。さらに、衣自体の食感は問題なかったものの一部衣に覆われていないため天ぷらとしての食感が得られない部分があり、天ぷらとしての美味しさが損なわれてしまっていた。 No. 1 in Table 1 that was dusted. 1-No. In the case of 3, the batter containing the fried balls was firmly attached to the oysters in any state, and the appearance of the oysters attracted a good appetite, and the oysters had a good texture and were delicious. On the other hand, No. which was not dusted. 4 to No. In the case of 6, the adhesion of the batter liquid was poor, and as a result, the batter after heating was easily peeled off, resulting in a poor appearance. Further, although the texture of the batter itself was not a problem, there was a part where the texture as tempura could not be obtained because it was not covered with the batter, and the deliciousness as tempura was impaired.
＜実験例２：バッター液の粘度＞
バッター液の付着性について、バッター液の粘度を変えて比較を行った。バッター液の粘度を変更した以外は基本的には、実験例１のＮｏ．３と同様の方法で牡蠣の天ぷら用食材を用意し、これを加熱し牡蠣の天ぷら得た。各バッター液の粘度における牡蠣の天ぷらの評価結果を表２に示す。加熱後に衣がしっかり身と密着し覆っている図４（Ａ）のような場合を「○」、一部問題がある場合に「△」、はがれ身が剥き出しの図４（Ｂ）の様な場合に「×」とした。食感は、サクッと軽い場合に「○」、一部問題がある場合に「△」、食感が重い場合には「×」とした。美味しさは、見た目・食感・味を総合的に評価し、良い場合に「○」、一部問題がある場合に「△」、悪い場合に「×」とした。
<Experimental Example 2: Viscosity of Batter Liquid>
The adhesiveness of the batter liquid was compared by changing the viscosity of the batter liquid. Basically, No. 1 of Experimental Example 1 except that the viscosity of the batter liquid was changed. Ingredients for oyster tempura were prepared in the same manner as in 3, and this was heated to obtain oyster tempura. Table 2 shows the evaluation results of oyster tempura at the viscosity of each batter solution. The case shown in Fig. 4 (A) where the batter is firmly attached to the body after heating is "○", the case where there is some problem is "△", and the peeled body is exposed as shown in Fig. 4 (B). In the case, it was set as "x". The texture was "○" when it was crispy and light, "△" when there were some problems, and "×" when the texture was heavy. The taste was evaluated comprehensively by appearance, texture, and taste, and was rated as "○" when it was good, "△" when there were some problems, and "×" when it was bad.
２５℃におけるバッター液の粘度が、６００ｍＰａ・ｓの場合（Ｎｏ．７）には若干バッター液が付着しにくく、揚げ玉も少し付着しにくく、加熱後の見た目は衣が一応覆っていたが身と衣の密着性が少し悪かったために、一応美味しいがＮｏ．８〜１０に比べ総合的に少し劣っていた。２５℃におけるバッター液の粘度が、７００ｍＰａ・ｓ、８００ｍＰａ・ｓ、１０００ｍＰａ・ｓの場合（Ｎｏ．８〜１０）には十分バッター液が付着し、揚げ玉も問題なく付着させることができ、加熱後には衣がしっかり身と密着し覆っていた。しかし、Ｎｏ．１２の場合はバッター液の粘度高すぎるため作業性が悪かったことに加え、バッター液が付着し過ぎるためバッター液由来のベタッとした厚い衣が形成されてしまい、食感が好ましくなかった。一方、２５℃におけるバッター液の粘度が２５０ｍＰａ・ｓの場合（Ｎｏ．１１）にはバッター液も揚げ玉も付着しにくく、加熱後は衣がはがれ、身がはっきりと見えてしまっていた。 When the viscosity of the batter liquid at 25 ° C is 600 mPa · s (No. 7), the batter liquid is a little hard to adhere, and the fried balls are also a little hard to stick. The adhesion of the batter was a little bad, so it was delicious for the time being, but No. Overall, it was a little inferior to 8-10. When the viscosity of the batter liquid at 25 ° C. is 700 mPa · s, 800 mPa · s, 1000 mPa · s (No. 8 to 10), the batter liquid sufficiently adheres, and the fried balls can also adhere without any problem. The clothes were tightly attached to the body and covered. However, No. In the case of 12, the workability was poor because the viscosity of the batter liquid was too high, and the sticky and thick garment derived from the batter liquid was formed due to the excessive adhesion of the batter liquid, and the texture was not preferable. On the other hand, when the viscosity of the batter liquid at 25 ° C. was 250 mPa · s (No. 11), neither the batter liquid nor the fried balls adhered easily, and after heating, the batter was peeled off and the body was clearly visible.
＜実験例３：揚げ玉の形状＞
種々の形状の揚げ玉を用い、見た目及び食感に由来する美味しさの評価を行った。揚げ玉の形状を変更した以外は基本的には、実験例１のＮｏ．３と同様の方法で牡蠣の天ぷら用食材を用意し、これを加熱し牡蠣の天ぷら得た。各形状の揚げ玉を用いた牡蠣の天ぷらの評価結果を表３に示す。加熱後に衣がしっかりとハナが咲いているような見た目の場合に「◎」、ハナが咲いているような見た目の場合に「○」、一応ハナが咲いているような見た目の場合に「△」、見た目が悪い場合に「×」とした。食感は、サクッと軽い場合に「◎」、一応サクッとした食感の場合に「○」、食感が一応軽い場合に「△」、食感が重い場合に「×」とした。美味しさは、見た目・食感・味を総合的に評価し、非常に良い場合に「◎」、良い場合に「○」、良くない場合に「△」、悪い場合に「×」とした。
<Experimental example 3: Shape of fried ball>
Using fried balls of various shapes, the deliciousness derived from the appearance and texture was evaluated. Basically, No. 1 of Experimental Example 1 except that the shape of the fried ball was changed. Ingredients for oyster tempura were prepared in the same manner as in 3, and this was heated to obtain oyster tempura. Table 3 shows the evaluation results of oyster tempura using fried balls of each shape. "◎" when the batter looks like it is blooming firmly after heating, "○" when it looks like it is blooming, and "△" when it looks like it is blooming. ", When it looks bad, it is marked with" x ". The texture was "◎" when it was crispy and light, "○" when it was crispy, "△" when it was light, and "×" when it was heavy. The appearance, texture, and taste were comprehensively evaluated, and the deliciousness was rated as "◎" when it was very good, "○" when it was good, "△" when it was not good, and "×" when it was bad.
凹凸を有する細長い形状である、Ｎｏ．１３〜１６では、見た目、食感ともに良く、美味しさの評価も良好であった。とりわけ、るＮｏ．１３〜１５では全ての評価項目において優れていた。真円度の平均が０．４５より大きいＮｏ．１７及びＮｏ．１８は、食感が若干劣った。一方、アスペクト比の平均が１．５未満であり、真円度の平均が０．６より大きいＮｏ．１９及びＮｏ．２０では全ての項目において劣っていた。図５にＮｏ．１３及びＮｏ．２０の写真を示す。 No. which is an elongated shape having irregularities. In 13 to 16, both the appearance and texture were good, and the evaluation of deliciousness was also good. Above all, No. In 13 to 15, all the evaluation items were excellent. No. with an average roundness greater than 0.45. 17 and No. 18 had a slightly inferior texture. On the other hand, No. 1 in which the average aspect ratio is less than 1.5 and the average roundness is greater than 0.6. 19 and No. At 20, it was inferior in all items. No. 5 is shown in FIG. 13 and No. Twenty photographs are shown.
＜実験例４：揚げ玉の油脂含有量＞
揚げ玉の油脂含有量の違いによる食感の違いについて比較を行った。揚げ玉の油脂含有量を変更した以外は基本的には、実験例１のＮｏ．３と同様の方法で牡蠣の天ぷら用食材を用意し、これを加熱し牡蠣の天ぷら得た。各形状の揚げ玉を用いた牡蠣の天ぷらの評価結果を表４に示す。加熱後に衣が身と密着し覆っている場合を「○」、はがれ身が剥き出しの場合に「×」とした。食感は、軽い場合に「○」、油っこい場合には「×」とした。美味しさは、見た目・食感・味を総合的に評価し、良い場合に「○」、悪い場合に「×」とした。
<Experimental example 4: Oil and fat content of fried balls>
We compared the difference in texture due to the difference in the fat content of fried balls. Except for changing the fat content of the fried balls, basically, No. 1 of Experimental Example 1 was used. Ingredients for oyster tempura were prepared in the same manner as in 3, and this was heated to obtain oyster tempura. Table 4 shows the evaluation results of oyster tempura using fried balls of each shape. The case where the batter was in close contact with the body and covered after heating was marked with "○", and the case where the peeled body was exposed was marked with "x". The texture was "○" when it was light and "×" when it was oily. The taste was evaluated comprehensively by appearance, texture, and taste, and was rated as "○" when it was good and "x" when it was bad.
Ｎｏ．２１及び２２では、加熱後に得られた天ぷらはサクッと軽く、良い食感であった。一方、油脂含有量の多いＮｏ．２３では、油っぽい仕上がりとなり、食感が悪く美味しさが劣っていた。また、油脂含有量の多い場合には牡蠣の天ぷら用食材の作製において、水含むバッター液との親和性が悪いためか、揚げ玉が多少付着しにくかった。 No. At 21 and 22, the tempura obtained after heating was crispy and light, and had a good texture. On the other hand, No. At 23, the finish was oily, the texture was poor, and the taste was inferior. In addition, when the fat content was high, it was difficult for the fried balls to adhere to the oyster tempura foodstuff, probably because it had a poor affinity with the batter liquid containing water.
以上の実施例で得られる天ぷらと、それぞれ牡蠣の天ぷら用食材を冷凍して得られる牡蠣の天ぷら用冷凍食材を加熱した場合に得られる天ぷらとでは、同様の見た目及び食感が得られた。 Similar appearance and texture were obtained between the tempura obtained in the above examples and the tempura obtained by heating the frozen oyster tempura foods obtained by freezing the oyster tempura foods.
Claims (13)
牡蠣の剥身に打ち粉を付着する工程と、
前記打ち粉を有する牡蠣の剥身に天ぷら用バッター液を付着する工程と、
前記天ぷら用バッター液と前記打ち粉とを有する牡蠣の剥身に揚げ玉を付着する工程と、
を含み、
前記天ぷら用バッター液の粘度は、２５℃において、４００〜１１００ｍＰａ・ｓであり、
前記揚げ玉は、無作為に抽出した１０個のアスペクト比の平均が１．５以上であり、
前記揚げ玉は、無作為に抽出した１０個の真円度の平均が０．６以下であり、
前記揚げ玉は、無作為に抽出した１０個の平滑度の平均が０．８０以下である、
牡蠣の天ぷら用食材の製造方法。 It is a method of manufacturing ingredients for oyster tempura.
The process of adhering flour to the oyster strips,
The process of adhering the tempura batter liquid to the stripped oysters with flour, and
A step of attaching fried balls to the stripped oysters having the tempura batter liquid and the dusting powder, and
Including
The viscosity of the tempura for batter, at 25 ° C., Ri 400~1100mPa · s der,
The fried balls had an average aspect ratio of 10 randomly selected pieces of 1.5 or more.
The fried balls had an average roundness of 10 randomly selected pieces of 0.6 or less.
The Agedama an average of ten smoothness randomly extracted is Ru der 0.80,
How to make oyster tempura ingredients.
牡蠣剥身の外側に衣材を備え、
前記衣材は、揚げ玉を有し、
前記揚げ玉は、無作為に抽出した１０個のアスペクト比の平均が１．５以上であり、
前記揚げ玉は、無作為に抽出した１０個の真円度の平均が０．６以下であり、
前記揚げ玉は、無作為に抽出した１０個の平滑度の平均が０．８０以下でる、
牡蠣の天ぷら用食材。 It ’s an ingredient for oyster tempura.
With clothing on the outside of the oyster strips,
It said Koromozai is, have a Agedama,
The fried balls had an average aspect ratio of 10 randomly selected pieces of 1.5 or more.
The fried balls had an average roundness of 10 randomly selected pieces of 0.6 or less.
The Agedama an average of ten smoothness randomly extracted is that 0.80 or less,
Ingredients for oyster tempura.
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