Cold Brew Coffee Filter Chamber for Low-Acidity Extraction
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Solution Overview
Problem
Existing cold brew coffee brewing methods and devices are either designed for substances other than coffee or have structural differences that do not effectively produce a high-quality, less acidic 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 concentrated and less acidic 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
1Productivity
If hot or boiling water is used to brew coffee, then extraction efficiency is improved, but the coffee becomes harsh and acidic
Solution Approach 1:
The invention changes the temperature parameter from hot/boiling to cold water, fundamentally altering the extraction process to avoid dissolving bitter oils and acids while still achieving acceptable extraction through extended contact time
2Object-generated harmful factors
If cold water is used to brew coffee, then acidity is reduced, but extraction efficiency decreases
Solution Approach 1:
The invention introduces dynamic elements including agitation mechanisms and extended brewing time to compensate for the lower extraction efficiency of cold water, maintaining acceptable coffee quality while preserving the low-acidity benefit
Solution Approach 2:
The invention extends the brewing duration significantly compared to hot brewing, allowing continuous extraction over time to achieve sufficient coffee concentration without using hot water
3Manufacturing precision
If a filter system is added to the brewing apparatus, then coffee grounds separation is improved, but device complexity increases
Solution Approach 1:
The filter is nested within the brewing chamber structure, integrating the separation function into the existing apparatus geometry without requiring separate external filtering components
Solution Approach 2:
The invention employs porous filtering materials that allow liquid passage while retaining coffee grounds, achieving effective separation through material properties rather than complex mechanical structures
4Productivity
If the brewing apparatus is designed for extended brewing time, then extraction quality is improved, but the brewing process duration increases
Solution Approach 1:
The invention performs preliminary preparation of coffee grounds and water mixing before the extended brewing period, optimizing the setup to maximize extraction efficiency during the prolonged contact time
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
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 3
The filter preferably has a water-permeable barrier, the filter defining a filter interior volume and sized to fit within the first container interior volume through the first container opening
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.