JPH0315890B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a simple extraction container that is used for extraction of coffee, tea, etc. and that enables extraction at a predetermined extraction water temperature, and its extraction. This invention relates to an extraction method using a container.

[Prior Art] Conventionally, for example, there is a drip method as an extraction method for regular coffee. This brewing method involves placing a brewing device directly on top of a drinking cup, setting filter paper, etc., placing coffee powder on top, and then pouring hot water into the cup to perform extraction. Here, when injecting hot water, delicate adjustment of the injection amount and injection time (which leads to adjustment of the hot water temperature) is required, and this is thought to affect the flavor etc. of the coffee extract.

On the other hand, with the extraction method of siphon-type or electric coffee makers with built-in heaters, just by setting coffee grounds and brewing water, hot water is semi-automatically generated and injected into the coffee grounds. Extraction is automatically performed in the extraction section. Therefore, these devices do not require adjustments in brewing operations, such as those of the drip type.

[Problem that the invention seeks to solve]

However, conventional regular coffee extraction equipment, such as drip-type extraction equipment, requires skill to perform the extraction operation, so it has the disadvantage that it is not easy to pour hot water into the appropriate amount (mainly the amount and time). It was hot. On the other hand, with the above-mentioned semi-automatic extraction equipment, automatically heated hot water is uniformly injected into the coffee grounds, making it virtually impossible to adjust the temperature of the hot water for extraction, which is originally necessary. It was hot. Further, there were problems in that the extraction device itself was expensive and not compact.

[Means for solving problems]

The present invention has been made in view of the above-mentioned problems, and makes it possible to extract coffee, tea, etc. with simple operation and at the optimum extraction temperature for the material to be extracted. The extraction container that accommodates the extraction container has a bottom portion made of a member having at least a liquid-permeable passageway and an oily substance that is solid at room temperature and closes the passageway, and the passageway is configured to accommodate the extraction container. an extraction container that opens only when the temperature of the water reaches the melting temperature of the oily substance or higher; and injecting the extraction water into the extraction container;
To provide an extraction method in which the extraction container is placed on a receiver in which a substance to be extracted is set, the extraction container and the receiver are placed in a predetermined position in a microwave oven, and heated for a predetermined time. It is something.

[Effect]

The "oily substance that closes the passage" of the present invention is water-insoluble and will not melt (the passage will open) even if it comes into contact with extraction water at a temperature below its melting temperature, so it can reproduce a constant extraction temperature. can do.
Furthermore, since the "oily substance that closes the passage" of the present invention is water-insoluble, it will not be dissolved or mixed into the extract. Furthermore, simply by injecting a predetermined amount of room temperature water into the extraction container of the present invention by heating in a microwave oven, the hot water generation and extraction operations proceed automatically.

〔Example〕

Hereinafter, the extraction container of the present invention and the extraction method using the extraction container will be explained in detail. Figures 1 and 2
The figure shows a first embodiment of the present invention, which includes a container 1 made of a material such as paper, plastic, glass, etc., containing water 2 used for extraction;
A substance that exhibits physical behavior in response to heat, that is, an oily substance that is solid at room temperature and dissolves when heated, such as wax, hydrogenated oil, or fatty acid , a film 3 made of an emulsifier or the like, a sheet 4 made of aluminum or other metal coated on the outside of the bottom of the container 1, and a material 8 fixed to or connected to the bottom of the container 1 to be extracted such as coffee or tea. and an extraction section 6 having a filter 7 made of material such as paper, plastic, metal, etc. at the bottom.
and a receiver 9 made of a material such as paper, plastic, glass, etc., the outside of the body and the outside of the bottom covered with a sheet 10 made of aluminum or other metal, and to which the legs 11 made of material such as plastic, paper, etc. are joined. configured.

The film 3 is formed by coating, spraying, adsorption, etc., but as long as the holes are closed, it is not necessary to form the film on the entire surface.

Although the sheets 4 and 10 are provided for the purpose of blocking waves generated by the microwave oven, they are not necessarily necessary depending on the output of the microwave oven used. For example, in the case of a high-output commercial microwave oven, when the sheet is not present, heat is applied from the bottom of the container 1 or the body and bottom of the receiver 9, and the heat is applied to the extractor 6 or the receiver 9. The existing liquid will be reheated, and in the worst case, the extract may spill over from the receiver 9, etc., so it is safer to provide the above sheet, and it also allows the aroma from the extract to escape. Optimal extraction is performed without any problems. Therefore, it is also possible to use a general coffee cup or the like as the receiver 9. On the other hand, foot 11 is
This is only necessary if metallic material is used at the bottom of the receiver 9 and there is a risk of sparking.

2A and 2B show the bottom structure of the container 1, in which a sheet 4 is provided to block electromagnetic waves generated by a microwave oven. Note that the heating appliance is not limited to a microwave oven, and the present invention can also be implemented in a sheathed heater, an electric oven, and other heating appliances.

Further, the shape of the bottom portion 5 is not limited to a planar shape, but may be an uneven shape, an arch shape, etc., and it is possible to provide the extracting portion 6 using the shape. A larger surface area is obtained and it is possible to improve extraction efficiency. The above shape is similarly applied to the bottom of the extractor 6 and has a similar effect. On the other hand, it is also possible to provide a plurality of extraction units 6 in series. In addition to the holes 5' provided in the bottom part 5, other members having liquid-permeable passages, such as filter paper, mesh made of metal or plastic, etc., are applied.

In the above configuration, the extraction process of this example will be explained below.

First, a required amount of water is poured into the container 1, placed in a microwave oven, and after closing the door of the microwave oven, heating is started. The heating time set varies depending on the output of the microwave oven used, but in a household microwave oven, for example, about 1 to 2 minutes is required for the amount of water for one cup of coffee.

Next, when the temperature of the extraction water reaches the desired temperature by heating, the film 3 on the bottom of the container 1 melts,
Since the closure of the hole 5' is removed and penetrated, the heated water in the container 1 begins to flow down from the hole 5' into the brewing section 6.

The hot water comes into contact with the extracted part (coffee powder) in the extraction part 6, and after extraction, the extract that has passed through the filter 7 is dripped into the container 9, and the extraction process is completed. Then,
After removing the container 1 and the brewing part 6, the receiver 9 containing the extract can be used directly as a drinking cup.

According to this embodiment, since the film 3 is made of a substance that shows physical behavior with respect to heat, it is possible to penetrate the hole 5' at a desired temperature within the range of 30°C to 100°C, and the coffee The optimum temperature for extracting liquid can be set for other teas and other extractable substances.

In the second embodiment, a heat-shrinkable film such as polyfilm is used as the membrane 3 for closing the bottom 5, and by shrinking at a predetermined temperature, holes, tears, etc. penetrating the bottom 5 are prevented. It is something that generates.

As shown in FIG. 3, the third embodiment includes a bimetal (for example, Teflon coated),
A member 12 having thermal responsiveness such as a thermal memory alloy;
The main component is a valve 13 made of rubber or the like which is joined to the member 12 and acts as a valve.

When the extractor with this configuration is heated in a microwave oven, when the temperature of the water in the container 1 is above a certain temperature, the member 12 deforms and lifts the valve 13, and the hole 5' penetrates. The extraction step is carried out in the same manner as in Example 1.

According to this embodiment, since the valve function is provided by the action of the heat-responsive member, the container 1 can be used repeatedly.

〔Effect of the invention〕

As described in detail above, according to the extraction container and the extraction method of the present invention, in the extraction container for storing extraction water, there is provided a member having a liquid-permeable passage at least in part and a member having a solid state at room temperature. an oil-based substance that closes a passage, and the extraction vessel opens only when the temperature of the extraction water contained therein reaches a melting temperature or higher of the oil-based substance; After pouring extraction water into the container and placing the extraction container on the receiver set with the material to be extracted, place the extraction container and the receiver at a predetermined position in a microwave oven for a predetermined period of time. Since the extraction method uses heating, coffee can be easily extracted at the optimum extraction temperature for the material to be extracted.
It is possible to extract tea, etc. In addition, the "oily substance that closes the passageway" of the present invention is water-insoluble and will not melt (the passageway will open) even if it comes into contact with extraction water at a temperature below its melting temperature.
A constant extraction temperature can be reproduced. Furthermore,
Since the "oily substance that closes the passage" of the present invention is water-insoluble, it will not dissolve or mix into the extract.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an extraction container according to an embodiment of the present invention, FIGS. 2A and B are a top view and a sectional view showing the bottom structure of the container 1 shown in FIG. FIG. 2 is a sectional view showing an extraction container according to an embodiment of the present invention. Explanation of symbols 1... Container, 2... Water, 3... Film, 4... Sheet, 5... Bottom, 5'... Hole, 6
...Extraction part, 7...Filter, 8...Extracted material, 9...Receiver, 10...Sheet, 11...Legs,
12... Member, 13... Valve.

Claims (1)

[Scope of Claims] 1. An extraction container containing water for extraction, which has a bottom portion made of a member having at least a liquid-permeable passage and an oily substance that is solid at room temperature and closes the passage. The extraction container is characterized in that the passageway opens only when the temperature of the extraction water contained therein reaches a melting temperature of the oily substance or higher. 2. The extraction container according to claim 1, wherein the oily substance is wax, hardened oil, fatty acid, or emulsifier. 3. Injecting water for extraction into an extraction container having a bottom made of a member having at least a liquid-permeable passage and an oily substance that is solid at room temperature and closing the passage, and covering the extraction container. An extraction method characterized by placing the extraction container and the receiver at a predetermined position in a microwave oven while placing the extract on the receiver, and heating for a predetermined time.