JPH0478285B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a simple extractor that is used for extracting coffee, tea, etc. and that enables extraction at a predetermined extraction water temperature, and the extractor. Regarding the extraction method.

[Conventional technology]

Conventionally, for example, a drip method has been used to brew regular coffee. In this brewing method, a brewing device is placed directly on top of a drinking cup, a filter paper or the like is set, coffee powder is placed, and then hot water is poured 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.

[Problems to be solved by the invention] However, in conventional regular coffee extraction equipment, for example, drip type extraction equipment,
Since the extraction operation requires skill, it has the disadvantage that it is difficult to inject the appropriate amount of hot water (mainly in terms of amount and time). 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 extractor itself was expensive and not compact.

[Means for solving problems]

The present invention has been made in view of the above-mentioned problems, and it is possible to extract coffee, tea, etc. with a simple operation and at an optimal extraction temperature for the material to be extracted. A container for accommodating water for extraction, which has a bottom made of a member having a liquid-permeable passage and an oily substance that is solid at room temperature and closes the passage, and a container connected to or bonded to the bottom to be extracted. an extractor which opens only when the temperature of the contained extraction water reaches a melting temperature or higher of the oily substance; The present invention provides an extraction method in which the extractor is placed in a receiver, the extractor and the receiver are placed at a predetermined position in a microwave oven, and heated for a predetermined time.

[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. Further, simply by injecting a predetermined amount of room temperature water into the extractor (container) of the present invention by heating in a microwave oven, the hot water generation/extraction operation automatically proceeds.

〔Example〕

Hereinafter, the extractor of the present invention will be explained in detail. 1st
Figure 2 shows a first embodiment of the invention, in which a paper, plastic,
A container 1 made of a material such as glass;
A substance that exhibits physical behavior in response to heat, that is, an oily substance that is solid at room temperature and melts when heated, such as wax, hardened A film 3 made of oil, fatty acids, emulsifiers, etc.; a sheet 4 made of aluminum or other metal coated on the outside of the bottom of the container 1; Accommodates 8, paper, plastic,
The extraction part 6 has a filter 7 made of a material such as metal as a bottom part, and the extractor part 6 is made of a material such as paper, plastic, or glass, and the outside of the body and the outside of the bottom part are covered with a sheet 10 made of aluminum or other metal. Receiver 9 to which legs 11 made of material are joined
It consists of

The film 3 may be formed by coating, spraying, adsorption, etc., but if the holes are closed, it is not necessary to form a passageway in its entirety.

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, and 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 part 5 is not limited to a flat one, but may be an uneven shape, an arch shape, etc., and it is possible to provide the extracting part 6 by 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 to heat the 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 hole 5' is unclosed and penetrated, the heated water in the container 1 begins to flow down from the hole 5' into the brewing part 6.

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

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

In the second embodiment, a heat-shrinkable film such as a poly film is used as the film 3 for closing the bottom 5, and by shrinking at a predetermined temperature, holes, tears, etc. that open the bottom 5 are removed. 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 extractor and extraction method of the present invention, the bottom portion is 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. a container for accommodating extraction water, and at least one extraction chamber connected to or bonded to the bottom and accommodating a material to be extracted; The extractor is opened only when the temperature reaches the melting temperature or higher, and the extraction water is poured into the extractor, and the extractor and the receiver are placed in a microwave oven with the extractor placed on the receiver. Since the extraction method involves placing the device in a predetermined position and heating it for a predetermined period of time, coffee, tea, etc. can be extracted with simple operation and at the optimal extraction temperature for the material to be extracted. In addition, the "oily substance that closes the passage" of the present invention is water-insoluble and will not melt (open the passage) even if it comes into contact with extraction water at a temperature below its melting temperature. temperature can be reproduced. 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.

[Brief explanation of the drawing]

1 is a sectional view showing an extractor according to an embodiment of the present invention, FIGS. 2A and 2B are a top view and a sectional view showing the bottom structure of the container 1 shown in FIG. 1, and FIG. FIG. 2 is a cross-sectional view of an example extractor. 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. A container for accommodating extraction water having a bottom portion comprising a member having at least a liquid-permeable passageway and an oily substance that is solid at room temperature and closes the passageway; at least one extraction chamber that is connected to or adhered to the bottom and contains a substance to be extracted, and the passage is opened only when the temperature of the contained extraction water reaches the melting temperature of the oily substance or higher. An extractor featuring: 2. The extractor according to claim 1, wherein the oily substance is wax, hardened oil, fatty acid, or emulsifier. 3. The extractor according to claim 1, wherein at least a part of the surrounding material of the extraction chamber is made of a filterable member. 4. The extractor according to claim 1, wherein at least a part of the extraction chamber is made of a metallic member. 5. A container for accommodating extraction water having a bottom portion consisting of a member having a liquid-permeable passageway at least in part and an oily substance that is solid at room temperature and closes the passageway, and a container connected to the bottom portion or Injecting water for extraction into an extractor consisting of at least one extraction chamber that is glued together and containing a material to be extracted, and with the extractor placed on a receiver, place the extractor and the receiver in a predetermined position in a microwave oven. An extraction method characterized by placing the sample at a position and heating it for a predetermined period of time. 6. The extraction method according to claim 5, wherein at least a part of the oil discharge chamber is made of a metal member.