Soap Bars with Post-Brew Coffee Grounds
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Solution Overview
Problem
A significant amount of post-brew coffee grounds are discarded daily, despite their potential therapeutic benefits and environmental sustainability, as they are not effectively utilized in existing products.
Innovation Solution
Methods and systems for manufacturing soap bars, candles, and other products that incorporate post-brew coffee grounds, utilizing various particle sizes and infusion techniques to leverage their beneficial properties, such as exfoliation and anti-inflammatory effects, while also exploring their use in concrete tables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If post-brew coffee grounds are utilized in soap products, then waste reduction and therapeutic benefits are improved, but manufacturing complexity increases
Solution Approach 1:
The patent applies parameter changes by controlling coffee ground particle size (ranging from 0.01mm to 6.0mm) and concentration (1% to 65% of total product weight) to optimize both waste utilization and manufacturing simplicity. Different particle sizes serve different functions while maintaining straightforward melt-and-pour production processes.
Solution Approach 2:
The patent creates composite soap products by combining post-brew coffee grounds with saponified fat bases (milk soap base, plant oil base, or animal fat base). This composite approach transforms waste coffee grounds into valuable functional ingredients while maintaining simple manufacturing processes using existing soap-making techniques.
2Ease of operation
If small coffee particle size is used, then moisture content is reduced and skin sensation is improved, but exfoliating effect decreases
Solution Approach 1:
The patent applies local quality by using multiple particle sizes (espresso grinds at 0.20mm, regular grinds at 1.0mm, and coarse grinds at 1.5mm) within the same soap product. Each particle size serves a specific local function: finer particles provide soothing sensation while coarser particles provide exfoliation, creating a multi-functional exfoliating soap.
3Reliability
If large coffee particle size is used, then natural oils and compounds are retained, but skin scratching increases
Solution Approach 1:
The patent applies parameter changes by optimizing coffee ground particle size to fall within the 0.21mm to 6.0mm range, with specific embodiments using 1.0mm and 1.5mm particles. This parameter optimization retains sufficient natural oils and compounds while reducing particle sharpness to prevent skin scratching, balancing therapeutic benefits with user comfort.
4Reliability
If coffee grounds are added to soap base, then therapeutic benefits are enhanced, but product separation may occur
Solution Approach 1:
The patent applies parameter changes by controlling coffee ground concentration to be 1% to 65% of total product weight, with optimal stability achieved at 40% or less. This concentration control, combined with appropriate particle size selection, prevents phase separation while maintaining therapeutic benefits in the final soap product.
Data Source
AI summary
Methods and systems to manufacture a soap bar comprising post-brew coffee particles are disclosed. A soap bar may comprise multiple post-brew coffee ground particle sizes to take advantage of the benefits associated with each size. For example, the soap bar may comprise espresso grinds (0.20 mm), regular grinds (1.0 mm), and/or coarse grinds (1.5 mm). A saponified fat base, e.g., a milk soap base, a plant oil base, and/or an animal fat base may be obtained and heated to a consistency. Collected post-brew coffee grounds may then be added. The coffee grounds may be anywhere from 1% to 65% of the total weight of the final product, depending on the desired soap quality. The final soap product may comprise coffee ground positive and coffee ground negative layers or portion, or the coffee grounds may be evenly dispersed throughout the product.