JPH0567274B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention promotes the vaporization of carbon dioxide dissolved in the beer to form a fine, creamy carbonated substance on the top surface of beer in containers such as beer bottles and cans. The present invention relates to a novel method for generating gas bubbles.

[Conventional technology]

In general, beer poured from large capacity barrels such as 25, 10, etc. into a beer bottle using carbon dioxide gas pressure is
It has very fine bubbles and is soft and delicious. These fine bubbles are created by pouring carbon dioxide dissolved in the beer into a beer bottle under normal pressure from a large-capacity barrel under a carbon dioxide pressure of 2 to 3 kg/ ^cm2 . It is thought to be produced by rapid vaporization.

On the other hand, in medium-capacity metal cans or plastic containers such as 2 or 3, the carbon dioxide pressure inside is much lower, so fine bubbles like this cannot be created under normal conditions, so if you pour from such a container, However, many inventions and considerations have been made to create fine bubbles.

The idea underlying these inventions and considerations is that, as a means to promote the vaporization of carbon dioxide dissolved in beer, shearing is mainly applied to the beer liquid by methods such as making the flow of beer into a trickle. A method of applying a velocity gradient, a method of applying vibration to the surface of the poured beer by hitting it with a trickle of beer, and a method of creating fine bubbles using the fine bubbles formed by the trickle of beer as the core. A method of forming a layer of air to reduce the entrainment of mainstream air in the beer (Special application)
54-151648, etc.), and a method in which the inner diameter and length of the air introduction pipe are set to appropriate dimensions to cause vibration in the flow of beer being poured out (Japanese Patent Application No. 55-94380, etc.).

However, such a method cannot be effective unless the beer is transferred from the container to a jug or the like.

On the other hand, there are many products such as canned beer that can be drunk as is without being drunk or poured. Generally, fine creamy foam is not produced when these containers are left open.

Furthermore, it has been known that tapping the bottles immediately after filling them with beer at a factory or the like promotes the vaporization of dissolved carbon dioxide.

However, even after opening a container such as a can containing beer and then hitting the container with a stick or the like, fine creamy foam was not generated from the beer inside the container.

[Problem that the invention seeks to solve]

The problem to be solved by the present invention is that even when drinking canned beer as is without pouring it into a bottle or pouring it into a container, the problem is that the carbon dioxide pressure does not increase without using any means to transfer the beer to another place. The object of the present invention is to provide a method for producing soft, delicious, and fine-grained foam like beer poured into a glass of beer.

[Means for solving problems]

A means for solving this problem in the present invention is characterized by applying local minute vibrations to a part of the container containing the beer.

The part of the container referred to herein refers to a part of the side wall and bottom of the container, and may be any part that comes into contact with beer. From the viewpoint of giving vibration easily, the vicinity of the center of the bottom and the portion of the side wall slightly above the bottom are preferable.

Local vibration refers to vibration that is limited to the location where the vibration is caused and its surroundings, and does not include the vibration that is unique to the entire container.

Fine vibrations refer to vibrations with a higher frequency than the natural vibrations of the entire container.

This method of causing minute local vibrations in a part of the container uses the instantaneous contraction force of an elastic body such as a rubber belt or string to move a small object such as a piece of metal or plastic. The method involves attaching a piece of metal to the tip of an elastic plate such as a leaf spring attached to a container, and using the instantaneous repulsive restoring force of the elastic body to push the metal piece at the tip of the plate into the container. There are various methods, such as a method of applying the vibration to a part of the container, and a method of attaching one end of a vibrating piece such as a metal plate to the container, vibrating the vibrating plate, and transmitting the vibration to the container from the connection part with the container.

[Effect]

In the present invention, as a result of applying local minute vibrations to a part of the container containing beer, the following effects promote the vaporization of carbon dioxide dissolved in the beer and generate fine bubbles. It is estimated that

First, when the wall surface of a part where a piece of plastic or metal hits the container or the connection part of a vibrating piece vibrates and momentarily bulges outward, there is a pressure-reducing section between the container and the beer. A void is created, and carbon dioxide evaporates in the reduced pressure section or void, producing fine bubbles. This effect is evidenced by the generation of bubbles at the locations where the plastic pieces or the like come into contact or from the connections of the vibrating pieces.

Next, the vibrations propagate along the wall of the container from the place where the plastic piece hits or the connecting part of the vibrating piece to the surrounding area, causing the surrounding area to vibrate and bulge outward momentarily. At this time, a reduced pressure area or gap is created between the container and the beer, and carbon dioxide is vaporized in the reduced pressure area or gap, producing fine bubbles. This effect is confirmed by the fact that when a piece of plastic or the like is applied to the center of the bottom plate, bubbles are generated not only from the center of the bottom but also from areas along its concentric circles.

The vibrations also propagate through the beer liquid as compression waves, and carbon dioxide evaporates in the coarse portions, producing fine bubbles. This effect occurs when a piece of plastic, etc. is applied to the container or when a vibrating piece is vibrated, and bubbles are generated not only from the area where the plastic piece hits the container, the connecting part of the vibrating piece, and its surroundings, but also from the entire beer. It is confirmed by the fact that it occurs.

In addition, the above phenomena and are strongly manifested in water-repellent plastic containers, and the above phenomena are strongly manifested in metal cans, where the elastic vibration continues for a relatively long time. It is possible to support this.

Furthermore, when a container containing beer is struck with a heavy object such as a stick, such minute vibrations are hardly generated, or even if they are generated, they quickly attenuate.
The entire beer container vibrates,
It is considered that no bubbles are generated.

〔Example〕

FIGS. 1 and 2 are explanatory diagrams of the first embodiment, and FIGS. 3, 4, 5, and 6 are, respectively,
It is an explanatory view of the 2nd, 3rd, 4th, and 5th example.

In these figures, 1 is the container, 2 is the side wall of the container, 3 is the bottom of the container, 4 is beer, 5 is a rubber string, and 6
1 is a hard plastic piece, 7 is beer foam, 8 is a leaf spring, 9 is a fixed part, 10 is a protruding piece, 11 is a vibration plate, and 12 is a fixed part.

In the first embodiment, as shown in FIG. 1, a rubber string 5 is hung around the side wall 2 of the container, a piece of hard plastic 6 is attached to one end of the string, and the string is pinched and pulled. As shown, it is released and the hard plastic piece 6 is placed against the side wall 2 of the container. In this embodiment, the vibration generated by the impact when the hard plastic piece 6 hits the beer causes foam 7 to be generated, first from the vicinity of the place where the hard plastic piece 6 hits, and then from the entire beer.

In the second embodiment, as shown in FIG. 3, a fixing point for the rubber string 5 is provided outside the container, a hard plastic piece 6 is applied to the rubber string 5, pulled, and then released. A piece of hard plastic 6 is placed against the side wall 2 of the container. In this embodiment as well, bubbles are generated in the same way as in the first embodiment.

The third embodiment, as shown in FIG.
A rubber string 5 is stretched in the diametrical direction of the bottom, a hard plastic piece 6 is attached to approximately the center of the rubber string 5, and the hard plastic piece 6 is pulled downward, released, and applied to approximately the center of the bottom. In this embodiment, foam initially emerges from approximately the center of the bottom and concentric circles thereof, and subsequently from the entire beer.

In the fourth embodiment, as shown in FIG.
The end of the leaf spring is pulled downward and released, and the protruding piece 10 is brought into contact with the bottom 3. In this embodiment, foam is first generated from the area where the protruding piece 10 hits and near the fixing portion 9 of the leaf spring, and then from the entire beer.

In this embodiment, the fixing portion 9 may be directly attached using solder or the like.

The fifth embodiment, as shown in FIG.
1 is vibrated and the vibration is transmitted to the bottom part through the fixed part. In this embodiment as well, foam is generated from the entire beer, centering on the bottom, as in the fourth embodiment.

〔Effect of the invention〕

Since the present invention has the above-described configuration, by carrying out the method of the present invention, beer poured into a beer bottle using carbon dioxide gas pressure can be produced without using any means for transferring the beer to another place. It can produce soft and delicious fine carbon dioxide bubbles.

[Brief explanation of drawings]

FIGS. 1 and 2 are explanatory diagrams of the first embodiment, and FIGS. 3, 4, 5, and 6 are, respectively,
It is an explanatory view of the 2nd, 3rd, 4th, and 5th example. In these figures, 1 is the container, 2 is the side wall of the container, 3 is the bottom of the container, 4 is beer, 5 is a rubber string, and 6
1 is a hard plastic piece, 7 is beer foam, 8 is a leaf spring, 9 is a fixed part, 10 is a protruding piece, 11 is a diaphragm, and 12 is a fixed part.

Claims (1)

[Claims] 1. A method for generating beer foam, which is characterized by applying local minute vibrations to a part of a container containing beer.