Cold Brew Coffee Filter Assembly for Extended Low-Acidity Extraction
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Solution Overview
Problem
Existing cold brew coffee brewing methods are either designed for substances other than coffee or have structural differences that do not effectively produce a high-quality, non-bitter coffee extract, and they often lack a convenient and mess-free filter system.
Innovation Solution
A cold brew coffee apparatus featuring a brew chamber, an extract chamber, and a centerpiece connector with a unique filter system that allows for cold water infusion over an extended period, producing a less acidic and more concentrated coffee extract, which can be stored for up to two weeks, and includes a reusable design with a hermetic seal and easy cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If cold water is used for brewing coffee, then the coffee extract is less acidic and bitter, but the brewing time must be extended for adequate extraction
Solution Approach 1:
The brewing system is divided into separate functional components: a brew chamber for cold water infusion, a filter assembly for separation, and an extract chamber for collection. This segmentation allows the cold brew process to occur efficiently in dedicated spaces while maintaining the extended brewing time needed for low-acidity extraction.
Solution Approach 2:
A filter assembly acts as an intermediary between the brew chamber and extract chamber, enabling the separation of coffee grounds from the extracted liquid. This intermediary component facilitates the extended cold brew contact time while ensuring clean extraction and easy separation, resolving the time-acidity contradiction.
2Ease of operation
If a filter system is integrated into the brew chamber, then the brewing process becomes mess-free and easy to clean, but the device complexity increases
Solution Approach 1:
The filter is designed as a separate, removable assembly that can be easily detached from the brew chamber. This segmentation allows the filter to be removed for cleaning without disassembling the entire brewing system, maintaining ease of operation while minimizing the complexity of integration.
Solution Approach 2:
The filter assembly is designed to be extractable from the brew chamber as a complete unit. This extraction capability allows users to remove and clean the filter separately, achieving mess-free operation and easy maintenance without permanently increasing the complexity of the main brewing structure.
3Duration of action of stationary object
If the apparatus is designed for cold brew infusion, then the coffee extract can be stored for extended periods, but the brewing system must be fully enclosed to prevent contamination
Solution Approach 1:
The system is segmented into enclosed brewing and storage chambers that can be sealed independently. This segmentation allows the extract chamber to be fully enclosed for extended storage while keeping the brew chamber accessible during the brewing process, achieving long-term storage without excessive overall complexity.
Solution Approach 2:
The finished extract can be extracted from the enclosed system into separate storage containers. This extraction capability allows the brewing system to maintain a simpler open design during brewing while still enabling extended storage by removing and sealing the extract externally.
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 apparatus produces a deep, rich coffee extract that is less acidic than conventionally brewed coffee, allowing for flexible dilution and storage, while being easy to use and maintain, with components made from materials like acrylic or polycarbonate for durability.
Implementation Method 1
cold brew infusion occurs when water in the first container interior volume passes through the water-permeable barrier and soaks coffee grounds within the filter interior volume to form a soluble coffee extract
Implementation Method 2
cold brew infusion occurs when water in the first container interior volume passes through the water-permeable barrier and soaks coffee grounds within the filter interior volume to form a soluble coffee extract
Data Source
AI summary
A cold brew coffee apparatus has a first container, a second container, a centerpiece connector, and a filter. Preferably, the filter is positionable within the first container such that it divides the filter interior volume from the remainder of the first container interior volume. Preferably, cold brew infusion occurs when water in the first container interior volume passes through the water-permeable barrier and soaks coffee grounds within the filter interior volume to form a soluble coffee extract. An alternative cold brew coffee apparatus includes only a single brew chamber and a filter.