Multi-Brew Group Coffee Brewing With Real-Time Extraction Control
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Solution Overview
Problem
Conventional coffee brewing methods are inefficient in producing high-quality coffee quickly, especially during peak demand periods, as they require significant time and may result in under- or over-extraction, leading to inferior flavor and waste due to the inability to rapidly produce large quantities.
Innovation Solution
A beverage brewing system with a brew group featuring a cylindrical brewing chamber, piston assemblies, and actuators for controlled brewing pressure, combined with an electronic system for real-time measurement and adjustment of brewing parameters, allowing for rapid production of freshly brewed coffee in both individual and large quantities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional brewing methods (boiling, steeping, filtration) are used, then the brewing process is simple and equipment is basic, but the brewing time is long (4-7 minutes) and productivity is low
Solution Approach 1:
The patent applies hydraulic pressure systems to force hot water through coffee grounds at controlled pressures (10-100 psi), enabling rapid extraction of coffee solubles in seconds rather than minutes. The lower piston assembly delivers hot water under pressure while the upper piston assembly compresses the coffee puck, creating efficient pressure-driven flow through the coffee bed for fast brewing.
Solution Approach 2:
The system dynamically adjusts brewing parameters including water pressure (10-100 psi), temperature, and flow rate to optimize extraction speed and quality. The electronic system monitors and controls these parameters in real-time, allowing the brewing process to be completed rapidly while maintaining consistent coffee quality across different cup sizes and demand levels.
2Productivity
If espresso brewing with high pressure (8-9 atmospheres) is used, then brewing time is reduced, but the flavor becomes very strong and distinctive that some consumers may not prefer
Solution Approach 1:
The system provides a broader pressure range (10-100 psi) compared to traditional espresso (8-9 atm), allowing consumers to select their preferred strength level. The electronic control system enables precise adjustment of pressure, temperature, and flow rate parameters to produce coffee with customized flavor profiles, avoiding the consistently strong espresso taste while maintaining rapid brewing.
3Productivity
If large quantities of coffee are brewed during peak demand, then customer service capacity increases, but conventional systems cannot rapidly produce large quantities leading to wait times and potential waste
Solution Approach 1:
The system enables continuous brewing operations with rapid cycle times, allowing multiple batches to be produced back-to-back without significant idle time. The fast pressure-driven extraction and efficient water flow control allow the system to maintain continuous productive operation during peak demand periods, rapidly producing large quantities of coffee to serve multiple customers simultaneously.
Solution Approach 2:
The electronic system monitors brewing parameters and product quality in real-time, providing feedback control to optimize each brewing cycle. This ensures consistent coffee quality across high-volume production, preventing waste from under- or over-extraction even when producing large quantities rapidly during peak demand periods.
4Manufacturing precision
If conventional brewing systems are used, then equipment complexity is low, but the ability to measure and adjust brewing parameters in real-time is insufficient leading to under- or over-extraction
Solution Approach 1:
The system incorporates electronic sensors and control systems that monitor brewing parameters (pressure, temperature, flow rate) and product quality in real-time. This feedback control enables precise adjustment of brewing conditions to achieve optimal extraction, preventing under- or over-extraction even as the system complexity increases with additional monitoring and control components.
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
The system enables rapid production of high-quality coffee by adjusting brewing parameters in real-time, ensuring optimal extraction and flavor consistency, and accommodating peak demand with efficient use of resources, reducing waste and wait times.
Implementation Method 1
a lower piston assembly that delivers hot water into the brewing chamber at a pressure between 10 and 100 pounds per square inch gauge (psig)
Implementation Method 2
an upper piston assembly that is movable between a brew position and a load position... the upper piston assembly is disposed above the cylindrical aperture and pivoted away. In the brewing position the upper piston sealingly engages the cylindrical aperture
Data Source
AI summary
A multi-brewer apparatus includes a plurality of brew groups that are configured to be selectively operated either in a ganged mode, wherein plurality of brew groups cooperate to rapidly produce a larger quantity of brewed beverage at a single dispensing location, or in a independent mode wherein the plurality of brew groups operate independently and dispense brewed beverage spaced apart dispensing locations. The apparatus includes a programmable controller apparatus that controls the delivery of the hot water and brewable material, and the operation of the brew groups. In an embodiment, an inline sensor array monitors a quality of the brewed beverage and reports to the programmable controller to maintain a consistent quality brewed product.