Vacuum Brewing Chamber Pressure Cycling for Fast Cold Extraction
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Solution Overview
Problem
The coffee and tea industry lacks a quick and efficient method for brewing high-quality beverages, with existing technologies relying on outdated processes that fail to provide the versatility of brewing both coffee and tea using hot or cold water within a short timeframe.
Innovation Solution
A vacuum brewing process and apparatus that utilizes a sealed chamber with a vacuum source and filter assembly to brew beverages, allowing for the separation of brewing materials from liquids under controlled pressure, enabling rapid and efficient extraction of solids with adjustable temperature and vacuum cycles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional brewing methods are used, then brewing process is simple, but brewing time is too long and efficiency is low
Solution Approach 1:
The patent employs vacuum pressure (pneumatic principle) to accelerate the brewing process. By creating a pressure differential between the brewing chamber and the environment, the system forces water through coffee grounds much faster than conventional gravity-based methods, reducing brewing time from hours to minutes while maintaining extraction quality
Solution Approach 2:
The system dynamically changes pressure parameters during brewing - starting with vacuum to accelerate water flow, then transitioning to positive pressure for filtration and dispensing. This parameter cycling enables both rapid brewing and proper separation of liquid from grounds, achieving high productivity without sacrificing brewing quality
2Manufacturing precision
If cold brewing method is used, then extraction quality is optimal, but brewing time takes 12 to 24 hours
Solution Approach 1:
The vacuum brewing system uses pressure differentials to force water through coffee grounds rapidly, achieving in minutes what would otherwise require 12-24 hours of cold brewing. The controlled vacuum environment maintains proper water-coffee contact while accelerating flow rate, thus preserving extraction quality without the time penalty
Solution Approach 2:
The system utilizes phase transition principles by controlling pressure to affect water's interaction with coffee grounds. The vacuum state enhances solvent penetration and extraction efficiency, allowing rapid extraction of coffee compounds that would otherwise require prolonged steeping time
3Productivity
If vacuum pressure is applied during brewing, then brewing time is reduced, but device complexity increases
Solution Approach 1:
The vacuum chamber serves multiple functions: it acts as the brewing vessel, the pressure control chamber, and the filtration chamber. By combining these functions in a single integrated system rather than separate components, the patent reduces overall device complexity while maintaining the productivity benefits of vacuum brewing
Solution Approach 2:
The system employs periodic cycling between vacuum and atmospheric pressure states. This periodic action automates the brewing and filtration processes - vacuum draws water through grounds, then atmospheric pressure pushes liquid through the filter - reducing the need for complex manual controls and simplifying the device operation
4Productivity
If rapid brewing is implemented, then turnover rate increases, but beverage quality may compromise
Solution Approach 1:
The system carefully controls pressure parameters to optimize both speed and quality. By adjusting the magnitude and duration of vacuum pressure, the system achieves rapid brewing while maintaining proper water-coffee contact time for adequate extraction. The controlled pressure cycles ensure complete filtration, preserving beverage quality despite accelerated processing
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
This method significantly reduces brewing time, enhances extraction efficiency, and maintains quality, allowing for both hot and cold brewing within minutes, while ensuring aseptic conditions and minimizing microbial growth.
Implementation Method 1
a vacuum source and conduit for reducing pressure in said sealable chamber
Implementation Method 2
a filter assembly connected to the sealable chamber
Data Source
AI summary
Devices and methods for infusing liquids and/or brewing beverages are described. The present invention relates to an apparatus for brewing beverages comprising a vessel, said vessel comprising a sealable chamber for holding a brewing material and a liquid, and a filter assembly connected to the sealable chamber; a liquid supply and conduit for introducing at least a portion of said liquid supply into said sealable chamber; and a vacuum source and conduit for reducing pressure in said sealable chamber.