JPH0525457B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a method for shipping raw oysters in the shell.

[Conventional technology and its problems]

Traditionally, raw oysters with shells (mainly farmed oysters) are collected or removed from the sea, treated in a sterilized aquarium with ultraviolet irradiated seawater for about a day and night to purify the internal organs, and then packed in boxes or Two to three bags are packaged with seawater (seawater is placed in a plastic bag and then closed), kept at a low temperature, and sent to the consumer.

By the way, raw oysters have excellent flavor, and although there is a large demand for raw oysters with shells,
Because it is difficult to open the shells, which are tightly closed with scallops, the reality is that oysters are supplied to general households in a shelled state with the contents removed.

For this reason, currently shell-on oysters are mainly shipped to hotels, restaurants, restaurants, etc., but it is extremely difficult, even for chefs, to extract the contents of shell-on raw oysters without damaging them. It was difficult.

Figures 6a and 6b are representative examples of commonly used shelled raw oysters. Fig. 6a shows a so-called oyster pounder commonly used in the Hiroshima prefecture region, and Fig. 6b shows a knife-shaped one. In either case, the pointed head 1 is forced into the boundary 4 of the closed oyster shell shown in Figure 7 to cut the scallop 5, open the shell 3, and take out the contents.

However, this method of forcibly inserting the pointed end to open the shell not only risks injuring one's hands, but also causes the crushed shell to get stuck in the oyster, causing the shucked meat to lose its shape and damage the product value. .

[Problem to be solved by the invention]

The present invention was made in view of the above problems, and an object of the present invention is to provide a new method for shipping raw oysters in the shell so that even ordinary households can enjoy fresh raw oysters in the shell. It is to make it.

[Means to solve the problem]

The above-mentioned problems of the present invention are solved by the following present invention.

Using a scallop cutting tool that has a cutting part and a holding part, before shipping raw oysters with shells, insert the cutting part into the shell so that the holding part of the cutting tool protrudes outside the shell, and then cut the desired number of plastic oysters into the shell. Stored in a bag made of sheets,
A method for shipping raw oysters in the shell, characterized in that the pressure inside the bag is reduced, the shells are tightened and sealed, and then shipped.

[Effect]

In the present invention, since oysters are shipped or stored with the scallop cutting tool placed inside the oyster shell in advance, the consumer can cut the scallop with the cutting tool whenever desired and can easily take out the contents from the shell. I can do it. Therefore, it is possible to easily enjoy fresh raw oysters in the shell at home.

Hereinafter, the present invention will be described in detail with reference to the drawings as necessary.

In the present invention, before shipping or storing raw oysters with shells, for example, as illustrated in FIG.
The cutting part 6 is inserted into the shell 3 so that the holding part 7 of the cutting tool 8 protrudes outside the shell 3.

As the cutting tool 8, for example, a scissor-like tool as shown in the first drawing or a knife-like tool as shown in the second drawing can be used, but either of them should be sharp enough to cut the scallop. part 6, and a holding part 7 that can be held by hand for cutting the scallop.
It is necessary to have the following.

The cutting tool 8 may be made of any material as long as it does not cause rust during insertion into the shell and adversely affect the meat quality of the oyster, and may include metal materials such as aluminum and stainless steel, as well as organic materials such as hard plastic. Can be used.

The cutting tool 8 is inserted near the scallop, and if a scissor-like tool is used, it is inserted so as to sandwich the scallop 5 as shown in the first figure.

Further, in order to save space during shipping or storage, it is preferable that the holding portion 7 is curved so as to fit closely along the oyster shell 3, as shown in FIG. 3, for example.

The cutting tool 8 is inserted into the shell as follows.

As mentioned above, when shipping raw oysters with their shells on, they are normally placed in a seawater tank and sterilized for about a day and night to purify their internal organs. , insert a cutting tool into the shell in this seawater tank.

That is, for example, as shown in FIG. 4, a seawater tank 11 is prepared with a partition plate 10 such that the oyster shells 3 are lined up in a row with the scallops 5 facing the seawater surface 9, and the seawater tank 11 is filled with oyster shells as shown in the figure. The oysters 3 are lined up, and when the oysters open their shells, the cutting tool is quickly inserted from the direction of arrow 12 in the figure.

When the cutting tool is inserted, the oyster closes its shell tightly, so the cutting tool cannot be removed from the shell unless the shell is opened again.

Therefore, it is preferable to insert this cutting tool immediately before removing raw oysters with shells from the seawater tank 11 and shipping or storing them. If the seawater tank 11 is narrow enough to avoid any damage, it is not necessarily necessary to perform this immediately before shipping or storage.

After the cutting tool is inserted into the oyster in this manner, the oyster is shipped or stored by tightening the two shells of the oyster so that the cutting tool cannot be removed by opening the shell.

Methods for tightening the shell include tightening the oyster shell with a rubber band or the like, or placing the shell in a bag made of various plastic materials and packing it under a slight vacuum.

Preferably, for example, as shown in FIG. 5, about 2 to 3 raw oysters with shells attached with a cutting tool 8 are packed in a bag, and the bags are vacuumed to a degree that the oysters cannot open the shells.
For example, it is preferable to tighten and seal the oyster shell 3 in the bag 13 at about 50 to 500 Torr. The bag 13 is made of a material having sufficient strength to avoid damage due to the sharp surface of the oyster shell, such as nylon, polyolefin, or a laminate thereof.

If the oysters are shipped or stored with their shells tightened in this way, they will not be able to be opened, and when it is time to enjoy them, they can be easily shucked by loosening the tightening of the shells and cutting the scallops with a cutting tool. , raw oysters can be easily enjoyed at home.

Note that raw oysters in the shell can be stored at room temperature for a short period of time, but they should be stored at a temperature of 10℃ or lower, preferably 3 to 7℃.
Of course, it is preferable to store the food at a temperature of about 0.9°C in order to maintain its freshness.

〔Example〕

Examples of the present invention are shown below.

Example: Cultured oysters (30 pieces) taken out from seawater were
After placing the oyster in the illustrated seawater tank and treating it with ultraviolet irradiated seawater for one day and night, the cutting tool 8 was inserted into the oyster shell 3 so as to sandwich the scallop 5 as shown in the first figure.

Next, three raw oysters into which this cutting tool was inserted were made into one pack, and an inner layer of soft polyethylene (TUXFC manufactured by Tocello Co., Ltd.) with a thickness of 100 μm and an inner layer with a thickness of 25 μm were placed.
The medium pressure method uses a polyethylene intermediate layer and a thickness of 25 μm.
vacuum packed in a bag consisting of an outer layer of nylon sheet. The degree of vacuum at this time was 200 Torr.

After storing this vacuum pack at 5°C for 4 days, the raw oysters were removed from the bag and the scallops were cut with a cutting tool, and the shells could be easily opened. This peeled meat was highly fresh and flavorful.

〔Effect of the invention〕

According to the present invention, since the scallop cutting tool is placed inside the shell of the raw oyster with shell before being shipped or stored, the consumer can open the shell by cutting the scallop with the cutting tool without any difficulty. This makes it possible for ordinary households to easily enjoy fresh, flavorful, shelled raw mosquitoes.

[Brief explanation of drawings]

FIG. 1 is a plan view of a raw oyster with shell attached with a cutting tool according to the present invention, FIG. 2 is a plan view of another example of the cutting tool according to the present invention, and FIG. 3 is a plan view of a raw oyster with a shell attached thereto. Front view of raw oyster in shell with cutting tool attached, No. 4
The figure is a cross-sectional diagram of an example of a seawater tank in which a cutting tool is inserted into raw oysters in the shell according to the present invention, FIG. Fig. 7b is a diagram illustrating representative examples of shells of conventional raw oysters with shells, and Fig. 7a is
and b are a front view and a plan view of raw oysters, respectively. Codes in the figure: 1...Point; 2...Stalk; 3...Oyster shell;
4... Boundary of oyster shell; 5... Scallop; 6... Cut section; 7...
Holding part; 8... Scallop cutting tool; 9... Sea level; 10...
Partition plate; 11...Seawater tank; 12...Arrow; 13...Bag.

Claims (1)

[Claims] 1 Using a scallop cutting tool that has a cutting part and a holding part, before shipping raw oysters with shells, insert the cutting part into the shell so that the holding part of the cutting tool protrudes outside the shell, and then cut the desired number of oysters into the shell. Stored in a bag made of plastic sheet,
A method for shipping raw oysters in the shell, characterized in that the pressure inside the bag is reduced, the shells are tightened and sealed, and then shipped.