Vacuum Chamber Brewing to Reduce Coffee and Tea Extraction Time
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Solution Overview
Problem
Current beverage brewing methods are inefficient and lack innovation, with no technology capable of brewing coffee or tea quickly and efficiently while maintaining high quality, as they operate under conventional atmospheric conditions or use vacuum principles that do not involve brewing within a vacuum chamber.
Innovation Solution
A beverage brewing machine and process that utilizes a sealed vacuum chamber to brew coffee or tea, where the desired temperature and vacuum pressure are maintained within specific ranges to extract flavors efficiently, allowing for both hot and cold brewing and quick or slow brewing cycles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional atmospheric brewing methods are used, then the brewing process is simple and equipment is basic, but the brewing time is long and quality is limited
Solution Approach 1:
The patent applies vacuum environment brewing by evacuating air from the brewing chamber to create a low-pressure atmosphere. This inert environment enables rapid extraction of coffee compounds without oxidation, achieving high-quality brewing in minutes rather than hours. The vacuum chamber isolates the brewing process from atmospheric conditions, resolving the contradiction between brewing speed and quality.
2Manufacturing precision
If cold brewing method is used, then flavor extraction quality is optimal, but the brewing time takes 12 to 24 hours
Solution Approach 1:
The patent changes the pressure parameter from atmospheric to vacuum conditions, which fundamentally alters the extraction dynamics. Under vacuum, hot water rapidly extracts coffee compounds without the lengthy soaking time required for cold brewing, achieving optimal flavor extraction in minutes. The pressure change enables hot water to penetrate coffee grounds more effectively while preventing over-extraction.
Solution Approach 2:
The patent utilizes phase transition of water from liquid to vapor and back under vacuum conditions. The water is heated to boiling point, then the vacuum causes rapid vaporization and condensation cycles that enhance extraction efficiency. This phase transition mechanism allows rapid flavor extraction comparable to cold brewing quality but in a fraction of the time.
3Productivity
If vacuum is used to create suction for liquid movement, then liquid flow is enhanced, but temperature control becomes difficult
Solution Approach 1:
The patent segments the vacuum function from the heating function. The vacuum chamber handles only the extraction and liquid flow, while a separate external heating system maintains water temperature. This segmentation allows independent optimization of both liquid flow efficiency and temperature stability, resolving the contradiction between enhanced circulation and temperature control.
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 quick and efficient brewing of high-quality beverages by maintaining optimal temperature and vacuum conditions within the brewing chamber, allowing for versatile brewing parameters and minimizing temperature and water vapor loss, resulting in enhanced flavor extraction.
Implementation Method 1
a vacuum pump (1) to evacuate the chamber (3)
Implementation Method 2
a heating element (2) to heat the liquid in the chamber
Data Source
Figure 1
AI summary
The desired amount of coffee grounds, tea leaves, herbs or other beverage making material is placed in a chamber of glass vessel located on a moveable table top in its lowered position. The table top is then elevated until the upper edge of the vessel seals against a top seal With the top sealed, the desired amount of water of about 185-212 degrees F is introduced into the chamber through a port in the top. Thereafter, a vacuum is drawn in the chamber and is held within the range of about -5 to -20 Hg in. Using an external heat source, the brewing liquid is maintained at about 185-212 degrees F. After the beverage has brewed for the desired amount of time, the heat and vacuum are removed, the chamber is returned to atmospheric pressure and the table top is lowered to release the vessel.