Method for producing a coffee-gas mixed beverage, coffee-gas mixed apparatus and coffee beverage preparation apparatus
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Solution Overview
Problem
Conventional coffee-gas mixing systems for producing nitro coffee are costly, complex, and pose safety risks due to high-pressure operation and the need for reusable or disposable gas cylinders, affecting quality and hygiene.
Innovation Solution
A method and device that integrates nitrogen-enrichment with coffee extraction in a single, continuous process using ambient air or nitrogen-containing gas, leveraging the coffee substrate as a static mixer and a crema valve for homogenization, eliminating the need for high-pressure systems and allowing for precise control of gas supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional high-pressure mixing systems are used to produce nitro coffee, then fine nitrogen bubbles and creamy texture are achieved, but manufacturing costs increase and system complexity increases
Solution Approach 1:
The patent combines the coffee extraction process and nitrogen mixing process into a single integrated system. The extraction chamber serves dual purposes: extracting coffee from grounds and simultaneously mixing nitrogen into the liquid. This eliminates the need for separate mixing equipment, reducing system complexity while maintaining fine bubble distribution through the natural extraction process.
Solution Approach 2:
The extraction chamber is designed to perform multiple functions: coffee extraction, nitrogen mixing, and beverage dispensing. By making the extraction chamber universal, the patent eliminates dedicated mixing equipment, thereby reducing device complexity while achieving the desired fine bubble texture through the extraction process itself.
2Quantity of substance
If reusable gas cylinders or disposable capsules are used to supply nitrogen, then nitrogen enrichment is achieved, but manufacturing costs increase and safety risks arise
Solution Approach 1:
The system uses ambient air as the nitrogen source, which is freely available and requires no external supply infrastructure. The extraction chamber naturally draws in and mixes ambient air during the coffee extraction process, eliminating the need for expensive gas cylinders or disposable capsules while reducing manufacturing costs and safety risks.
Solution Approach 2:
The extraction chamber acts as an intermediary that captures and mixes ambient air with the coffee liquid during extraction. This natural mixing process provides sufficient nitrogen enrichment without requiring direct connection to pressurized gas sources, thereby reducing costs and eliminating safety hazards associated with high-pressure gas storage.
3Manufacturing precision
If coffee extraction and nitrogen enrichment occur in two separate steps, then each process can be optimized, but process complexity increases and quality may be compromised
Solution Approach 1:
The patent merges coffee extraction and nitrogen enrichment into a single simultaneous process occurring within the extraction chamber. As liquid flows through the coffee grounds, ambient air is naturally drawn in and mixed with the extracting coffee, achieving both extraction and nitrogenation in one step without compromising quality.
Solution Approach 2:
The extraction and mixing processes occur continuously and simultaneously in a single flow path. The liquid continuously flows through the coffee substrate while continuously mixing with ambient air, eliminating the need for separate sequential steps and maintaining continuous quality control throughout the process.
4Manufacturing precision
If high-pressure operation is used for mixing, then fine bubble formation is achieved, but safety risks and operational complexity increase
Solution Approach 1:
The patent changes the operating pressure parameter from high-pressure to ambient pressure operation. By using atmospheric pressure and relying on the natural extraction process to create fine bubbles through fluid flow and mixing, the system achieves fine bubble formation without the safety risks and operational complexity associated with high-pressure systems.
Solution Approach 2:
The patent replaces the mechanical high-pressure mixing system with a natural extraction-based mixing process. Instead of using pressure to force nitrogen into the coffee, the system uses the natural flow of liquid through coffee grounds to create fine bubbles, thereby improving operational safety while maintaining bubble quality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables safe, reliable, and cost-effective production of nitro coffee with a creamy texture using ambient air, reducing manufacturing costs and complexity while maintaining quality and hygiene standards.
Implementation Method 1
the coffee substrate acts as a static mixing element
Implementation Method 2
a nitrogen-containing gas or gas mixture can be supplied to the fluid line before the fluid is fed into the extraction chamber, via an inlet point in the fluid line, so that a liquid-gas mixture is formed
Implementation Method 3
a fluid pump for conveying the fluid
Data Source
Figure 1~2
AI summary
The invention relates to a method for producing a coffee-gas mixed beverage. According to the invention, a nitrogen-containing gas or gas mixture is supplied, preferably via an inlet point (6) in a fluid line (5), to a liquid used for extracting a coffee substrate (15), preferably water, between a fluid tank (11) for storing the liquid or a liquid connection, in particular a fresh water connection, and an outlet, preferably a crema valve (16), of an extraction chamber (14) storing the coffee substrate (15), so that a liquid-gas mixture thus formed flows through the coffee substrate (15), thereby performing extraction from the coffee substrate (15), and mixing and/or homogenization of the liquid-gas mixture is carried out, during which the coffee substrate (15) acts as a static mixing element.