KR-20260067472-A - PRESSURIZED COLD BREW COFFEE EXTRACTION DEVICE USING MICROBUBBLES

KR20260067472AKR 20260067472 AKR20260067472 AKR 20260067472AKR-20260067472-A

Abstract

The present invention relates to a pressurized cold brew coffee extraction device using microbubbles, and more specifically, by using high-pressure microbubble water to extract cold brew coffee at high speed, it is possible to distribute and store cold brew coffee for a long time, thereby minimizing losses occurring during the distribution process. In addition, the present invention has a small installation area for the device, and anyone can easily control the operation of the device through a control unit that controls the extraction operation of cold brew coffee. In addition, the present invention uses microbubble water during the production of cold brew coffee to delay the progression of oxidation and prevent the influx and proliferation of microorganisms, thereby enabling long-term distribution and allowing the coffee to be safely provided to consumers without any change in quality. In addition, the present invention can maintain the unique flavor and aroma of cold brew coffee extracted from cold water, and since separate refrigeration is not required, it can reduce distribution costs and facilitate storage and transportation.

Inventors

김묘웅
송노웅

Assignees

김묘웅

Dates

Publication Date: 20260513
Application Date: 20241105

Claims (13)

As a cold brew coffee extraction device, A water tank that receives and stores purified water; An air regulator that introduces gas into the purified water discharged from the above water tank; A high-pressure pump that sucks in and discharges purified water into which gas has been introduced through the above air regulator; A gas-liquid mixer that produces gas-liquid mixed water by dissolving gas in purified water discharged from the above-mentioned high-pressure pump; A microbubble generator that produces microbubbles by generating microbubbles in the gas-liquid mixed water produced in the above-mentioned gas-liquid mixer; A coffee extractor that extracts cold brew coffee by spraying microbubble water produced in the above-mentioned microbubble generator onto coffee beans loaded inside; and A pressurized cold brew coffee extraction device using microbubbles, characterized by including a coffee storage container for storing cold brew coffee extracted from the above-mentioned coffee extractor.
In Article 1, The above cold brew coffee extraction device is characterized by further including a first solenoid valve and a second solenoid valve to control the flow of liquid discharged through the pump, a pressurized cold brew coffee extraction device using microbubbles.
In Article 1, A pressurized cold brew coffee extraction device using microbubbles, characterized in that the above-mentioned water tank further includes an ON/OFF valve for controlling the flow of liquid stored inside.
In Article 2 or Article 3, A pressurized cold brew coffee extraction device using microbubbles, characterized in that the above liquid is purified water or microbubble water.
In Article 1, The above gas is oxygen ( ) or ozone( A pressurized cold brew coffee extraction device using microbubbles, characterized by being ).
In Article 1, The above high-pressure pump is, inside A pressurized cold brew coffee extraction device using microbubbles, characterized by being able to generate pressure.
In Article 1, The above microbubble generator is, Housing with an open bottom; A spray nozzle formed to penetrate the exact center of the above housing and spraying gas-liquid mixed water prepared in the above gas-liquid mixer; and A pressurized cold brew coffee extraction device using microbubbles, characterized by including a metal porous body formed to surround the outside of the spray nozzle and forming microbubbles in the gas-liquid mixture sprayed from the spray nozzle.
In Article 7, A pressurized cold brew coffee extraction device using microbubbles, characterized in that the above-mentioned metal porous body is formed into a scouring pad shape with a number of pores formed by molding irregularly bent metal wires into a dense structure.
In Article 1, A pressurized cold brew coffee extraction device using microbubbles, characterized in that the diameter of the microbubbles is 10㎛ to 20㎛.
In Article 1, A pressurized cold brew coffee extraction device using microbubbles, characterized in that the coffee extractor comprises a coffee loading container having a space formed therein for loading coffee beans, and a sealing cover that can be attached to/detachably on the upper part of the coffee loading container.
In Article 10, A pressurized cold brew coffee extraction device using microbubbles, characterized in that the coffee loading container and the sealing cover are formed of stainless steel to withstand high temperature and high pressure conditions.
In Article 10, A pressurized cold brew coffee extraction device using microbubbles, characterized by further including an O-ring that is fitted into the gap between the upper part of the coffee storage container and the sealing cover attached thereto to block the entry and exit of air between the inside and outside of the coffee storage container.
In Article 10, A pressurized cold brew coffee extraction device using microbubbles, characterized in that eight connecting members are formed on the side portion of the coffee storage container and eight identical grooves are formed on the outer portion of the sealing cover, allowing for attachment and detachment between the coffee storage container and the sealing cover.

Description

Pressurized Cold Brew Coffee Extraction Device Using Microbubbles The present invention relates to a pressurized cold brew coffee extraction device using microbubbles. Generally, cold brew coffee is prepared by extracting it from coffee beans using various tools or devices. In addition, the taste and aroma of cold brew coffee can vary significantly depending on various factors, such as the type of coffee beans, the degree of roasting, the grind size, and the aging period, as well as the type of water used for extraction, the water temperature, and the extraction time. However, since cold brew coffee is extracted by steeping it in room-temperature water over a long period of time, there is a possibility that its taste and aroma may deteriorate due to microbial growth or rancidity during the manufacturing, distribution, and storage processes. For this reason, cafes and coffee-related businesses that handle cold brew coffee manufacture and distribute it in-house using various types of cold brew extraction devices; however, conventional cold brew extraction devices have the problem of being uneconomical because the amount extracted is very small compared to the extraction time. Accordingly, there has been an increased demand from cafes and coffee-related businesses for devices capable of extracting cold brew coffee at high speeds. In response to this demand, the pressurized cold brew coffee extraction device using microbubbles, which is the present invention, was devised. The attached drawings are intended to explain the contents of the present invention in more detail to those skilled in the art, and the technical concept of the present invention is not limited thereto. FIGS. 1a to 1d are drawings showing a pressurized cold brew coffee extraction device using microbubbles according to one embodiment of the present invention. FIG. 2 is a drawing showing a microbubble generator of a pressurized cold brew coffee extraction device using microbubbles according to one embodiment of the present invention. FIGS. 3a and 3b are drawings showing a coffee extractor of a pressurized cold brew coffee extraction device using microbubbles according to one embodiment of the present invention. FIG. 4 is a drawing showing a filter plate of a pressurized cold brew coffee extraction device using microbubbles according to one embodiment of the present invention. FIG. 5 is a drawing showing a control unit of a pressurized cold brew coffee extraction device using microbubbles according to one embodiment of the present invention. Hereinafter, a pressurized cold brew coffee extraction device using microbubbles according to the present invention will be described in detail, but the scope of the pressurized cold brew coffee extraction device using microbubbles is not limited by the following description. Throughout the specification, when a part is described as “comprising” a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components. The present invention relates to a cold brew coffee extraction device. More specifically, the present invention relates to a pressurized cold brew coffee extraction device using microbubbles capable of extracting cold brew coffee at high speed using high-pressure microbubble water. FIGS. 1a to 5 are drawings showing a pressurized cold brew coffee extraction device using microbubbles according to one embodiment of the present invention. Referring to FIGS. 1a to 1d, the cold brew coffee extraction device (10) may include a water tank (110), an air regulator (120), a high-pressure pump (130), a gas-liquid mixer (140), a microbubble generator (150), a coffee extractor (160), and a coffee storage container (170). Additionally, each component included in the cold brew coffee extraction device (10) can be connected via piping to perform the operation of each component. Here, each component refers to the water tank (110), air regulator (120), high-pressure pump (130), gas-liquid mixer (140), microbubble generator (150), coffee extractor (160), and coffee storage container (170). The above water tank (110) can store purified water or store microbubble water produced by the above microbubble generator (150). In addition, the water tank (110) can supply purified water or microbubble water required during the cold brew coffee extraction process. Additionally, the water tank (110) may further include an ON/OFF valve (111) for controlling the flow of liquid stored inside, and the liquid refers to purified water or microbubble water. Additionally, the water tank (110) may further include a water level sensor capable of detecting the water level of purified water or microbubble water stored inside. In addition, a pressure gauge (112) capable of measuring the pressure inside the water tank (110) may be additionally provided on the upper part of the water tank (110). The above air regulator (120) is briefly shown in FIG. 2b and FIG. 2d.