JPS63245632A - Production of filling-containing doughnut - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for producing donuts with an inner wrapper having a desired shape without contaminating an oil bath.

[Conventional technology]

A confectionery made by putting a dough mainly made of wheat flour and water in hot oil and deep-frying it is broadly called a donut, and its shape is not a ring-shaped so-called donut shape, but also a disc shape, an egg shape, a twisted candy shape, etc.

On the other hand, donuts with an inner wrapper are also known, which are a conventional donut with an inner wrapper such as bean paste, jam, cream, chocolate, etc.

This donut with inner wrapping material is made by the following method.

First, make a core-sheath type material as shown in Figure 2. FIG. 2 is a cross-sectional view of a donut material containing an inner wrapping material. Inside the tube 1, there is a continuous core-sheath type material in which an inner wrapping material 2 made of, for example, bean paste is surrounded by an outer wrapping material 3 made of flour kneaded with water. It's filled. This material is extruded from the tube 1, and the cutter 4 located near the outlet is operated to cut the material into a predetermined size.

The cut donut ingredients are placed in hot oil and fried.

[Problem that the invention seeks to solve]

Although the method for producing donuts with inner packaging material as described above allows continuous production, it has the following drawbacks.

(1) First, marks (Fig. 2, 5), which are traces of the inner packaging material, are formed on the cut portion cut with a cutter. This pipe slightly communicates with the internal packaging material, and the thermal expansion of the fried tofu medium packaging material causes the packaging material to fly out, contaminating and deteriorating the oil bath. Therefore, it is necessary to replace the oil bath more frequently, which is extremely uneconomical.

(2) The raw material, which is made by kneading flour with water, is directly fried in oil, which consumes a lot of oil.

(3) The shape is limited and it is difficult to change the product.

The present invention was obtained as a result of studies aimed at solving the drawbacks of the conventional method for manufacturing donuts containing inner wrappers.

Therefore, an object of the present invention is to provide a manufacturing method that prevents contamination of an oil bath due to the floating of the inner wrapper during frying, and can efficiently produce donuts with inner wrappers in a desired shape.

[Means for solving problems]

In order to achieve the above object, the present invention takes the following measures.

That is, the method for manufacturing a donut with an inner wrapper according to the present invention involves inserting a concave portion of a metal or heat-resistant material plate into a concave shape having a desired shape.
Put an outer wrapping material for a donut mainly consisting of flour and water into the concave portion, and then place an inner wrapping material in the center of the concave portion.
Further, the outer packaging material is injected over the inner packaging material to completely cover it, and then a firing process is performed, and the obtained solid raw material is removed from the concave portion, and then placed in hot oil and fried. It is something to do.

FIG. 1 is an explanatory diagram illustrating a part of the method for manufacturing a donut with an inner wrapper according to the present invention, in which a metal plate 7 having a concave portion 6 of an appropriate shape can be heated from below by a heating means. . The outer packaging material 3a of the donut is placed in the bottom of the concave portion 6, the inner packaging material 2 is placed in the center thereof, and the outer packaging material 3b is injected onto it to completely cover the inner packaging material 2.

The method of the present invention will be specifically explained below.

First, in the present invention, the outer wrapping material of the donut is injected into the concave portion. The material of the board to be used at this time is metal such as iron, copper, brass, aluminum, etc., fluororesin coated on the surface of these metals, heat-resistant synthetic resin, ceramics, etc., especially if it is heat-resistant. The shape of the concave portion formed on the surface of such a heat-resistant plate is not limited, and determines the shape of the donut, and may be disc-shaped if necessary.

Square, triangle, star shape, etc. can be selected as appropriate.

The size and depth of the concave portion are related to the firing time.

Also, considering that you can hold and eat donuts with your hands, the diameter is about 3~20C! 1. The depth of the recessed portion is preferably 0.5 to 21. The number of recessed portions may be one, but considering commercial productivity, it is preferable to provide 2 to 100 recessed portions on the same board.
The plate made of metal or heat-resistant material does not need to be in the form of a single flat plate; for example, the entire plate may form a heating oven and also serve as the top plate of the oven.

Conventional materials can be used for the outer packaging of donuts.1 Usually, flour and yeast.

Sugar, seasonings, and in some cases eggs, coloring, etc. are kneaded with milk or water to an appropriate viscosity. Such a fluid outer packaging material is injected into the concave portion of the metal or heat-resistant material plate, and the injection method may be manual or mechanical. In the case of manual operation, the outer packaging material is placed in a flammable container with a small hole in the bottom, and by grasping it with the hand, the appropriate amount can be injected into the recessed part, while in the case of machine use, a tube with an opening and closing mechanism is used. It is possible to accurately inject a certain amount of outer packaging material by applying pressure.

The initial injection amount of the outer packaging material needs to be 1/2 or less of the volume of the recess. When the amount is more than 1/2, it becomes difficult to cover the inner packaging material by secondary injection of the outer packaging material. The optimum amount varies depending on the amount of the inner packaging material, but is usually about 174.

Next, an inner wrapping material is placed in the center above the inner wrapping material.The inner wrapping material may be a fluid material such as bean paste, jam, cream, chocolate, or curry, or a solid material such as minced meat, fish meat, or ham.

Further, the outer packaging material is injected again from above to completely surround the inner packaging material.

Heat and bake in this state, but when adding the first outer packaging material,
It does not matter if the heating has already been carried out. The firing temperature and firing time vary depending on the size and shape of the recessed portion and the type of inner packaging material, but are usually 180 to 250°C and 5 to 10 minutes. By this firing, the outer wrapping material of the bottom and the outer wrapping material of the lid are brought into close contact and homogenized, and the inner wrapping material is completely enclosed inside. Also, at this point, the shape is fixed and one surface is also solidified.

The solid raw material thus obtained is put into hot oil and fried. The temperature of the oil bath is the same as conventionally used, but the time required is short because it has been fired once.

〔Example〕

The outer packaging material, which is made by kneading flour, yeast, sugar, eggs, and seasonings with water, was put into an automatic injection machine, and the filling was put into a hand-drilled tube.

Diameter 101. First, about 1/4 amount of the outer packaging material was placed in each concave part of a top plate having 20 disc-shaped concave parts with a depth of 3 cm.Then, the bean paste was placed and further covered with the outer packaging material, and then heated and solidified for 10 minutes. Then, take it out and put it in cooking oil at 200℃.
Got the donuts a minute later.

The obtained donuts had good shape retention, and no spillage of filling occurred, so there was no oil contamination. Also, compared to conventional methods of frying raw materials, less oil was consumed.

〔Effect of the invention〕

The method for producing a donut containing an inner wrapping material according to the present invention has the following excellent effects.

(1) The outer packaging material is injected into the concave mold in two parts, completely enveloping the inner packaging material, and then fired, so the inner packaging material is sealed inside, so the inner packaging material does not come out during frying, and the oil The life of the oil bath can be extended because it does not pollute the bath or deteriorate the oil.

(2) Since it is baked before frying, the time for frying is shortened, and the amount of oil consumed is extremely small.

(3) Since the donuts are baked in a mold, it is possible to obtain donuts with a desired shape compared to the conventional tube cutting method.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the baking process of a donut containing an inner wrapper according to the present invention, and FIG. 2 is an explanatory diagram showing the cutting of a conventional donut containing an inner wrapper. 1... Tube, 2... Inner packaging material, 3... Outer packaging material,
4... Cutter, 5... Scrap, 6... Concave portion, 7...
...Metal plate. Patent applicant Mr. Hayashi Figure 1

Claims (1)

[Claims] (1) Put less than 1/2 of the volume of the donut outer wrapping material, which is mainly made of flour and water, into the recessed part of a plate of metal or heat-resistant material that has been formed into a concave shape, and then place the inner wrapping material in the center of the recessed part. Then, the outer packaging material is injected from above to completely cover the inner packaging material, and then fired, and the obtained solid raw material is released from the concave part, and then placed in hot oil and fried. A method for producing a donut containing an inner wrapping material.