JPH01313020A - Coffee pot - Google Patents

Abstract

PURPOSE:To enable a positive change of a taste by a method wherein a filter part with built-in adsorbent by which the effective component and the poor component of coffee is removably mounted below the coffee extraction part of a drip type or a siphon type coffee pot. CONSTITUTION:Crushed coffee beans 1 are placed on a paper filter 2, and on a V-extraction part 3. A given amount of water is poured in a water tank 4 and poured in a pipe 6 in the vicinity of a heater 5, and heated hot water is poured on the beans 1. Necessary extraction is effected at the extraction part 3, and hot water is further poured in a filter part 7. Various adsorbents 8 are placed in the filter part 7 to remove caffeine and the like. Extracted liquid making contact with the filter part 7 is gathered in a server 10 for storage. The filter part 7 is formed such that it is movable through a simple slide mechanism or rotary mechanism so that it can be used only when it is desired to be used. As noted above, by removing a high molecular black brown component approximately similar to a poor component, coffee the acid taste and astringency of which are decreased but the effective component of which is hardly changed can be tasted.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a coffee maker for general household use.

Conventional technology Conventionally, this type of coffee maker has a structure in which ground coffee beans, tea, black tea leaves, etc. are placed on a screen or paper filter, and hot water is poured from above, allowing the appropriate extract to collect at the bottom. was. Additionally, there are devices such as saifon-style coffee makers and teapots that have a structure in which beans and leaves are immersed in a pot and then extracted. In order to improve the taste of coffee and tea, we use natural stones or bakuhan stones for the water itself, filter it with activated carbon, or use an alkaline water maker (Japanese Unexamined Patent Publication No. 61-97099). There are known examples of improving the taste.

Problems to be Solved by the Invention With conventional coffee makers of this type, it has been difficult to actively change the taste.

In the case of water purifiers, natural stone, and alkaline water makers, the main purpose is to add and remove certain ions from the water itself, and it is not possible to actively react with the components in coffee.

Further, a typical example of using activated carbon is a household water purifier, but since activated carbon is generally effective at relatively low temperatures below room temperature, it has not been used at high temperatures. It was thought that adsorption to hot water was not very effective.

On the other hand, although caffeine is an active ingredient in coffee, there are times when people want decaffeinated coffee, or when they want to suppress the astringent taste of coffee, and so on, and there are various desires depending on the situation.

The present invention solves the above problems, and aims to provide a coffee maker that can actively change the taste.

Means for Solving the Problems In order to solve the above problems, the present invention provides a filter that includes an adsorbent for removing active components or defective components of coffee under the coffee extraction part of a drip coffee maker or a siphon coffee maker. The parts are removably installed.

Furthermore, the present invention uses activated carbon as an adsorbent for caffeine, which is an active ingredient in coffee, and has a larger pore distribution than ordinary coconut shell activated carbon and has a high ability to adsorb caffeine, or a polymer as a defective ingredient in coffee. Targeting dark brown components, activated carbon with a larger pore distribution and high ability to adsorb polymeric components is used.

Effect: With the above configuration, target components can be efficiently adsorbed and reduced when the coffee extract passes through the filter section.

Coffee extract contains approximately 11,000 PP of caffeine, and the dark brown polymer component may be, for example, a polymer of chlorogenic acid, which also contains approximately 11,000 PP.

These components have fairly large molecular weights, so if the pore distribution of the adsorbent is selected, they can have a considerable adsorption capacity even under hot water, and can positively change the taste of coffee.

Example Hereinafter, one embodiment of the present invention will be explained based on the drawings.

FIG. 1 is a sectional view of a coffee maker according to an embodiment of the present invention. In FIG. 1, ground coffee beans 1 are placed on a mesh or paper filter 2 and placed on a V-shaped brewing section 3. A predetermined amount of water is put into the water tank 4, and the heater 5
The heated oba is poured into the bean l from above along the arrow a in Fig. 1. Then, the necessary extraction is performed in the extraction section 3, and the liquid falls further downward and is poured into the filter section 7.

FIG. 2 shows an example of an enlarged view of the filter section 7. As shown in FIG.

If you want to remove caffeine as the adsorbent 8 in the filter section 7, coconut shell activated carbon, which has a relatively large pore distribution, can be used.
The average pore radius is distributed around 10, and the pore volume is 0.3.
Crushed coal of 5 m+/f or more (particle size of about 0.15 to 1.6 U) is selected.

Another adsorbent 8 is zeolite with an average pore radius of 5~
It may be for 15 people. Further, when it is desired to remove the blackish brown components of the polymer, pitch-based activated carbon having an average pore radius of 30 to 100 pores and a pore volume of 0.1 ml/9 or more is preferable.

This filter section 7 wraps the adsorbent 8 on its upper and lower surfaces with a metal mesh wire mesh or non-woven fabric such as polypropylene, which allows the coffee extract to pass through without letting the adsorbent 8 pass through. It is made of an impermeable metal such as stainless steel or a molded plastic such as polypropylene. The usage amount of adsorbent 8 is 550m
Using l-10f per l of coffee extract is sufficient for one coffee extraction, but if you use it several times or for a long period of time, increase the amount according to the adsorption capacity (breakthrough capacity). and use it.

The extract that came into contact with the filter part 7 accumulates in the server 10,
Stored. The filter part 7 is configured so that it can be moved in the direction of the arrow by a lever or the like (not shown) using a simple slide mechanism (not shown) or rotation mechanism (not shown) so that it can be used only when desired. has been done.

The temperature of the coffee extract is 90-95℃ for a regular drip coffee maker, and 93-98℃ for a siphon type coffee maker.
It was ℃.

An example of the siphon type is shown in FIG.

In FIG. 3, the filter section 11 is formed and constructed in substantially the same manner as in the previous embodiment. 12 indicates coffee beans. 1
3 is an alcohol lamp, but an electric heater may also be used.

In this case, a string 14 is attached to the filter section 11 so that it can be taken in and out when necessary.

The target caffeine has the following molecular structure.

In addition, the dark brown component of the polymer is expected to be the result of a complex reaction between sugar, various organic acids, and proteins, among which chlorogenic acid dimers and trimers, which are also abundant in quantity, are thought to be present. .

As can be seen from the chlorogenic acid molecular structure, the caffeine molecule fiM = 1
94, trigonelline molecule fiM = 353, which is very large, and CI that is usually targeted in water purifiers.

(M=70), trihalomethane (M=11 in CHCI3
3) and odor-causing aldehydes, amine acetic acids, etc. whose molecular weight is several tens of thousands. Those with a small number of about ~100 were overwhelmingly large, and therefore, they were difficult to remove at high temperatures because they were difficult to adsorb.

By selecting this, it is designed to be able to be adsorbed even at high temperatures. The first level of removal based on the example
Shown in the table.

The beans used were Mocha, and the grain size was 40f to 55.
0m1 (for 5 people) of water and bring the water temperature to boiling to 95°C for approx.
Pour for a minute and extract.

The acidity is measured by neutralization titration, and the black-brown polymer component is shown as a dimensionless value measured by liquid chromatography. The arrow part is the part that has changed significantly compared to the coffee extract brewed using the normal method.

Effects of the Invention As described above, according to the present invention, by removing caffeine, which is an active ingredient in coffee, it can be used for people who are prone to illness, such as those who do not want to put a burden on their heart or those who want to drink coffee before going to bed. It is very effective for people who should not ingest stimulants, and by removing the black-brown high-molecular components, which are similar to bad components, the sourness and astringency are greatly reduced, giving the product a light taste. You can enjoy coffee that is strong, yet the active ingredients of coffee remain almost the same.

In addition, by reducing the amount of black-brown polymer components, it also has the advantage of producing a coffee that does not become cloudy and has a certain shelf life.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a coffee maker showing one embodiment of the present invention, FIG. 2 is an enlarged view of a filter section, and FIG. 3 is a cross-sectional view of a siphon-type coffee machine showing another embodiment. l...coffee beans, 2...mesh or paper filter,
3...Extraction part, 4...Water tank, 5...Heater,
6... Pipe, 7... Filter part, 8... Adsorbent, 9... Guide, 11... Filter part, 12... Coffee beans.

Claims (1)

[Claims] 1. A coffee maker that extracts ground coffee beans by bringing them into contact with hot water using a drip or siphon, and has an adsorbent built-in below the extraction part to remove active components or defective components of the coffee. A coffee maker with a removable filter. 2. Targeting caffeine as an active ingredient in coffee, we use activated carbon with a larger pore distribution and higher caffeine adsorption capacity than ordinary coconut shell activated carbon as an adsorbent, resulting in an extract with reduced caffeine content. The coffee maker according to claim 1, wherein the coffee maker is configured to 3. As an adsorbent, we use activated carbon with a larger pore distribution and high ability to adsorb polymeric components, targeting the blackish brown polymer component (component on the polymer side obtained by liquid chromatography) that is a defective component of coffee. 2. The coffee maker according to claim 1, wherein an extract with reduced astringency can be obtained.