Single-Serve Coffee Pod Extraction Depth for Strength Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Single-cup brewing devices lack the ability to control the strength of coffee beverages, as they typically use prepackaged pods with predetermined amounts of coffee and fixed water volumes, limiting consumer customization to meet individual caffeine and taste preferences.
Innovation Solution
A pseudo packed bed of extractable beverage material is created within a single-serving article, allowing a liquid extraction stream to contact the material at varying depths and coverage areas to establish zones of minimum and maximum extraction, enabling control over the beverage's strength by adjusting the depth and coverage area of the extraction stream.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If prepackaged pods with predetermined coffee amounts are used, then brewing convenience is improved, but beverage strength control capability deteriorates
Solution Approach 1:
The coffee bed is segmented into multiple zones (first zone, second zone, third zone) with different extraction characteristics. The liquid extraction stream selectively contacts different zones to produce beverages of varying strengths, allowing strength control while maintaining prepackaged convenience.
Solution Approach 2:
Different regions of the coffee bed are given different properties - the first zone is configured for high extraction, the second zone for medium extraction, and the third zone for low extraction. This local differentiation enables strength control by selecting which zone to contact with the extraction stream.
2Device complexity
If fixed water volumes are used for extraction, then brewing process simplicity is improved, but beverage strength customization deteriorates
Solution Approach 1:
The system maintains simple fixed water volume brewing by instead creating local quality differences within the coffee bed. Different zones have different extraction properties, allowing strength customization through zone selection rather than water volume adjustment, thus preserving process simplicity while enabling customization.
3Ease of operation
If prepackaged pods are used, then single-cup brewing convenience is improved, but consumer ability to adjust strength deteriorates
Solution Approach 1:
The prepackaged pod contains a segmented coffee bed with multiple zones of different extraction properties. Consumers can select which zone to contact with the extraction stream, providing strength adjustment capability within the convenient prepackaged single-cup format.
Solution Approach 2:
The system introduces dynamic element - the ability to select different extraction zones - into the static prepackaged pod structure. This allows the same prepackaged pod to produce beverages of varying strengths based on which zone is contacted by the extraction stream.
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 approach allows consumers to produce coffee beverages with desired strengths, from mild to strong, while maintaining balanced flavor, by manipulating the zones of extraction within the pseudo packed bed environment, ensuring consistent quality and taste.
Implementation Method 1
contacting at least one liquid extraction stream with the pseudo packed bed of extractable beverage material to obtain at least one zone of minimum extraction and at least one zone of maximum extraction
Data Source
AI summary
Processes for controlling strength of an extracted beverage including providing a pseudo packed bed of an extractable beverage material and contacting at least one liquid extraction stream with the pseudo packed bed of beverage material at a selected depth to obtain at least one zone of minimum extraction and at least one zone of maximum extraction. As the depth at which the liquid extraction stream is introduced into the packed bed increases, the zone of minimum extraction increases and the zone of maximum extraction decreases.