Cold brew coffee extraction device
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional cold brew coffee extraction methods require long-term immersion, leading to inefficient extraction and adverse effects on coffee concentration and taste when immersion time is reduced.
Innovation Solution
A cold brew coffee extraction device with a container, filtering cup, and an extraction operation device that includes guiding tubes, a pump, and a controller to control water levels, allowing for repeated immersion and extraction of coffee flavors in a shorter time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If long-term immersion is used for cold brew coffee extraction, then coffee flavor is extracted, but extraction efficiency is low and time consumption is high
Solution Approach 1:
The patent implements periodic immersion and drainage cycles through automated pump control. The system repeatedly fills the brewing chamber with cold water, allows brief extraction contact, then drains and repeats the cycle multiple times. This periodic action intensifies the extraction process, achieving comparable flavor quality in significantly reduced time compared to continuous static immersion
Solution Approach 2:
The system transitions from static immersion to dynamic cyclic immersion-drainage operation. The automated pump system creates movement and variation in the extraction process, continuously refreshing the water-coffee contact conditions. This dynamic approach enhances mass transfer and extraction efficiency while maintaining flavor quality
2Loss of time
If immersion time is reduced for faster extraction, then time efficiency improves, but coffee concentration and taste are adversely affected
Solution Approach 1:
The system performs multiple short-duration immersion cycles instead of a single long immersion. Each cycle provides concentrated extraction contact, and the repeated cycles accumulate extraction effectiveness. This approach maintains coffee concentration and taste quality while dramatically reducing total extraction time compared to conventional single-stage methods
Solution Approach 2:
The automated pump system ensures continuous useful action by immediately refilling and re-immersing the brewing chamber after each drainage cycle. There is minimal idle time between cycles, maintaining continuous extraction activity. This continuous cyclic operation achieves high extraction efficiency without sacrificing coffee concentration or taste
3Device complexity
If manual cold brew extraction is used, then equipment simplicity is maintained, but operation efficiency and control precision are low
Solution Approach 1:
The system incorporates automated pump control with water level detection capability. The pump automatically performs filling and drainage operations based on detected water levels, eliminating the need for manual intervention. This self-service automation maintains relatively simple equipment structure while dramatically improving operation efficiency and timing precision
Solution Approach 2:
The water level detection mechanism provides feedback to the pump control system, enabling automatic regulation of the immersion-drainage cycles. The system detects when the brewing chamber is full or empty and automatically adjusts pump operation accordingly. This feedback control ensures precise timing and consistent extraction conditions without complex manual operation
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 device enhances extraction efficiency and flavor quality by allowing for rapid and controlled immersion and extraction of coffee, improving the overall brewing process.
Implementation Method 1
The controller is electrically connected to the pump to control operation of the pump to thereby supply air into or suck air out of the first guiding tube, thereby controlling a water level of the cold water in the first chamber
Implementation Method 2
A filter is disposed in the third opening
Implementation Method 3
The low-temperature extraction method includes placing ground coffee powders in a filtering paper or a strainer and filling cold water to immerse the ground coffee powders. The cold water can slowly extract the coffee
Data Source
AI summary
A cold brew coffee extraction device includes a container having a first chamber for receiving cold water. A filtering cup is mounted in the first chamber and includes a second chamber intercommunicating with the first chamber. The second chamber receives coffee powders and includes a second opening. The filtering cup further includes a third opening at a lower end thereof and receiving a filter. A first guiding tube includes a first end intercommunicating with the second chamber and a second end located outside of the container. A pump is disposed outside of the container and is connected to the second end of the first guiding tube. A controller is electrically connected to the pump to control operation of the pump to thereby supply air into or suck air out of the first guiding tube, thereby controlling a water level of the cold water in the first chamber.