JPH037116A - Water drip coffee brewing device - Google Patents

Abstract

PURPOSE:To obtain a water-drip coffee of good taste by furnishing a vessel containing a replaceable activating charcoal between a flow control device and a filtration chamber. CONSTITUTION:Water in a vessel 9 is throttled to a minute amount by a rate-of- flow adjuster 10, stagnates temporarily within an activating charcoal 12 in a water purifying vessel 11, passes through the activating charcoal 12, and drips over the coffee 15 in a filtration chamber 14. The extracted coffee liquid stagnates in a coffee vessel 16. The speed of the water passing through the water purifying vessel 11 becomes very low while throttled to a minute amount by the rate-of-flow adjuster 10, so that the water purifying action is good effective even though the activating charcoal 12 in the purifying vessel 11 is in a minor amount, which allows extraction of the coffee with the water which has been removed of residual chlorine or organic substance.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a cold brew coffee extractor having a function of removing residual chlorine, organic substances, etc. contained in tap water and the like.

2. Description of the Related Art As a conventional water purifier, a water purifier such as 4 shown in FIG. 5, which is attached to a water faucet, is known in order to remove residual chlorine, organic substances, etc. contained in tap water. This water purifier has a channel 2 in which tap water flows inside the water purifier body 1, and is equipped with activated carbon 3 in the middle of this channel 2.The activated carbon 3 physically adsorbs residual chlorine and organic substances contained in the tap water. etc. were removed.

On the other hand, in the cold brew coffee extractor shown in FIG. 6, water is stored in a water container 4, and a regulating valve 5 is adjusted to drip the water little by little onto coffee grounds 7 in a filtration chamber 6. While passing through the coffee grounds 7, coffee components are extracted, and the coffee liquid is dripped into the glass container 8. In this method, the extracted coffee liquid may lose its flavor due to residual chlorine and organic substances contained in the water poured into the water container 4, so water purified by the water purifier etc. is used. Was.

Problems to be Solved by the Invention In the above-mentioned cold brew coffee extractor, the taste of the resulting coffee either improves or deteriorates depending on the residual chlorine and organic substances contained in the water that is added. For this reason, water that has been passed through a water purifier to remove residual chlorine and organic substances has been used to obtain better-tasting cold-brewed coffee.

In addition, the water purifier used above uses the physical adsorption of activated carbon 3, and since the amount of physical adsorption of activated carbon 3 is proportional to the flow rate and the amount of activated carbon 3, in order to obtain sufficient purified water, The problem was that a large amount of activated carbon 3 was required, resulting in high costs.

The present invention is intended to solve these problems, and aims to provide a cold brew coffee extractor that can remove residual chlorine, organic substances, etc. contained in tap water using a relatively small amount of activated carbon, and produce delicious cold brew coffee. It is something.

Means for Solving the Problems In order to achieve the above objects, the cold brew coffee extractor of the present invention includes a water container for storing water, a flow rate control device installed near the outlet of the water container, and a flow control device for controlling the flow rate control device. At the bottom, iTE, a minute amount of water is dripped using a volume control device.
The device is equipped with a filtration chamber for extracting coffee, and a container containing replaceable activated carbon between the flow rate control device and the filtration chamber.

Function According to the above configuration, the water sent to the filtration chamber where coffee is extracted is treated with activated carbon to remove residual chlorine and organic matter from the water. Since chemical changes in unnecessary components can be reduced, delicious coffee liquid can be obtained.

Example Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a cross-sectional view of a cold brew coffee extractor showing an embodiment of the invention. In the figure, 9 is a water container that stores water, and a flow regulator 1 is installed at the outlet at the bottom of this water container 9.
Equipped with 0. 11 is a water purification container, and 12 activated carbons are contained in the container. Activated carbon 1 is placed at the bottom of the water purification container 11.
A mesh net 13 having a finer mesh than the particle size of No. 2 is used. The water purification container 11 described above is removable, and a filtration chamber 14 for pouring and brewing coffee 15 is provided below the water purification container. 16 is a coffee container for retaining the coffee liquid extracted in the filtration chamber 14.

Next, the operation of the above configuration will be explained. Water is placed in a water container 9, and a flow rate regulator 10 allows the water in the water container 9 to pass through in small amounts. All of the water that is squeezed into a very small amount by the flow rate regulator 10 and passes through is temporarily collected in the activated carbon 12 in the water purification container 11. Since the bottom of the water purification container 11 is a mesh net 13, the water accumulated in the water purification container 11 passes through the activated carbon 12 and drips into the coffee 15 in the filtration chamber 14, and the extracted coffee is extracted. The liquid collects in the coffee container 16. What should be noted here is the speed of water passing through the water purification container 11. The speed of water passing through the water purification container 11 is throttled down to a very small amount by the flow rate regulator 10 and becomes very slow, so even a small amount of activated carbon 12 in the water purification container 11 can sufficiently purify the water. Coffee can be extracted using water from which organic substances have been removed.

FIG. 2 is a cold brew coffee brewer capable of heating dripping water showing another embodiment of the present invention. In the figure, reference numeral 17 denotes a water container for storing water, and a flow rate regulator 20 is equipped at the outlet at the bottom of this water container 17. Reference numeral 19 is a submersible heater, and the power supply is controlled by a temperature regulator 18 that can keep the temperature of the heated water in the flow regulator 20 constant. 21
is a water purification container, and there are 22 pieces of activated carbon inside the container. At the bottom of the water purification container 21, a mesh net 23 whose mesh is finer than the grain size of the activated carbon 22 is used. Water purification container 2 above
Below 1, there is a filtration chamber 24 for extracting coffee 25.
is equipped. 26 is a coffee container for storing the coffee liquid extracted in the filtration chamber 24.

Next, the operation of the above configuration will be explained. water container 17
The water in the water container 17 is passed through the water container 17 little by little by the flow rate regulator 20. At this time, underwater heater 1
When electricity is applied to 9, the flow rate regulator 20 squeezes the water into a very small amount and the water is kept at a constant temperature by the temperature regulator 18 before passing through. All of the passing water is temporarily collected in the activated carbon 22 in the water purification container 21. The water accumulated in the water purification container 21 is drained from the bottom of the water purification container 21 through the Soshu net 23.
Therefore, the coffee liquid passes through the activated carbon 22 and drips into the coffee 25 in the filtration chamber 24, and since coffee is extracted, the extracted coffee liquid is collected in the coffee container 26. What should be noted here is the temperature of the water passing through the water purification container 21. When high-temperature water passes through the activated carbon 22, in addition to physical adsorption, a catalytic reaction decomposes free chlorine, which causes off-odor and off-taste, increasing the water purification effect of the activated carbon 12. Therefore, the life of activated carbon can also be increased.

FIGS. 3 and 4 show a cold brew coffee brewer showing still another embodiment. 27 is a water container containing water, and a flow rate regulator 30 is installed at the outlet at the bottom of this water container 327.
is installed. 31 is a hot plate, and activated carbon 32 is charged into the hot plate 31, and a fine mesh mesh 33 is used at the outlet thereof. 28 is a heater and the hot plate 31
The power supply is controlled by a temperature regulator 29 that can heat the heated hot plate 31 and keep the heated hot plate 31 at a constant temperature. Below the hot plate 31 is a coffee container for storing coffee liquid extracted in the filtration chamber 34 in order to extract coffee 35.

Next, the operation of the above configuration will be explained. water container 27
The water in the water container 27 is passed through the water container 27 little by little by the flow rate regulator 30. At the same time, the power to the heater 28 is turned on to heat the hot plate 31 and maintain it at a constant temperature. A small amount of water passing through the flow rate regulator 30 temporarily remains on the activated carbon 12 in the hot plate 31. Since the bottom of the hot plate 31 is a menyu mesh 33, the water collected on the hot plate 31 passes through the activated carbon 32 and drips onto the coffee 35 in the filtration chamber 34 to extract the coffee, so the extracted coffee liquid is It accumulates in the coffee container 36. What should be noted here is that
The hot plate 31 containing the activated carbon 32 heats and purifies the water that passes through the flow rate control device 30 and narrows it down to a very small amount, and when the water in the water container 27 is completely filled, only the activated carbon 32 is heated. After the water has passed through, the activated carbon 3
2 is dried and the activated carbon 32 is further heated.

As a result, activated carbon 32 is always dry when you start using it.
It is hygienic and a reactivation effect can be obtained by heating the activated carbon 32, so activated carbon can be used semi-permanently.

Further, in Example 2.3, the effect is maintained with a small amount of activated carbon, and there is no need to replace it semi-permanently.

Effects of the Invention As is clear from the description of the above embodiments, the cold brew coffee extractor of the present invention is capable of producing more delicious cold brew coffee by using the adsorption of activated carbon to purify water.

Also second. In the third embodiment, the adsorption catalytic reaction of activated carbon is used to purify water, and by continuing to maintain this effect, delicious coffee can be obtained semi-permanently.

[Brief explanation of drawings]

Fig. 1 is a vertical sectional view of a cold brew coffee extractor showing one embodiment of the present invention, and Fig. 2 is a longitudinal sectional view of a cold brew coffee extractor with a drip water temperature regulator showing another embodiment of the invention. , 3(a) and 3('b) are a vertical sectional view and a circuit diagram of a main part showing a reactivation device for a cold brew coffee extractor with an activated carbon reactivation device, showing still another embodiment of the present invention. FIG. 4 is a longitudinal sectional view of a cold brew coffee extractor with a reactivation device, FIG. 5 is a schematic configuration diagram showing a conventional water purifier, and FIG. 6 is a longitudinal sectional view of a conventional cold brew coffee extractor. 9... Water container, 10... Flow rate control device, 12... Activated carbon, 14... Filtration chamber.

Claims (2)

[Claims] (1) A water container that stores water, a flow rate control device installed near the outlet of the water container, and a minute amount of water adjusted by the flow rate control device located below the flow rate control device drips to extract coffee. A cold brew coffee brewer comprising a filtration chamber and a replaceable container containing activated carbon between the flow control device and the filtration chamber. (2) A filtration chamber for extracting coffee is provided below a water container that stores water and a minute flow rate control device installed near the outlet of the water container, and a heating device is provided between the minute flow rate control device and the filtration chamber. A cold brew coffee brewer with a container containing activated carbon.