Microbial Wood-Contact Aging for Ethanol Beverage Flavor Development
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Solution Overview
Problem
The traditional aging process for ethanol-containing beverages, such as whiskey and vinegar, is lengthy, often taking years to develop desired flavors and aromas, and existing methods struggle to replicate these qualities efficiently.
Innovation Solution
A method using microorganisms, such as yeasts, fungi, and bacteria, is employed to accelerate the flavoring process by subjecting ethanol-containing liquids to wood materials under controlled conditions, including heating and gas management, to simulate the aging process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional wood barrel aging is used, then desired flavors and aromas are achieved, but the process takes years to complete
Solution Approach 1:
The patent applies preliminary action by pre-treating wood materials through toasting, charring, or chemical treatments before contact with the ethanol-containing liquid. This pre-processing creates reactive sites and extracts flavor compounds in advance, enabling rapid flavor transfer during the aging process without requiring years of contact time.
Solution Approach 2:
The patent uses intermediary substances such as extracted wood compounds, spices, herbs, or microbial cultures that mediate the flavor transfer process. These intermediaries concentrate and transfer specific flavor profiles to the liquid rapidly, achieving complex flavor development in days rather than years.
2Productivity
If high temperature and pressure are applied to expedite aging reactions, then ester formation is accelerated, but the activation energy requirements create process complexity
Solution Approach 1:
The patent replaces mechanical/thermal systems (high temperature and pressure) with biological systems (microorganisms, enzymes, or microbial cultures) that catalyze ester formation and flavor development under milder conditions. This substitution achieves rapid aging without requiring complex high-energy equipment while maintaining flavor quality.
3Quantity of substance
If wood materials are heavily treated to enhance flavor extraction, then flavor intensity increases, but the natural quality and complexity of the beverage may be compromised
Solution Approach 1:
The patent applies local quality by using different wood materials (oak, cherry, maple, etc.), varying degrees of toasting, and selective microbial inoculations in different stages or compartments of the aging process. This creates localized flavor zones that contribute specific notes while maintaining overall beverage balance and complexity.
Solution Approach 2:
The patent employs periodic action by cycling the liquid through multiple aging stages with different wood treatments and microbial cultures. The process alternates between extraction phases, fermentation phases, and maturation phases, allowing balanced development of flavor compounds while preventing over-concentration of any single compound class.
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 method rapidly imparts flavors and aromas similar to conventional aging, producing beverages with a chemical signature comparable to those aged naturally, in a fraction of the time.
Implementation Method 1
a number of biological entities have the ability to metabolize ethanol into various products
Implementation Method 2
heating the liquid to a temperature between about 20 degrees Celsius and about 45 degrees Celsius
Implementation Method 3
subjecting a source of ethanol to a wood material and an extraction process
Data Source
AI summary
The present inventive concept relates generally to simulating the barrel aging or finishing process of alcohol-containing products in a rapid manner using various microorganisms to impart flavors and aromas during the aging or finishing process. Products and methods used in the process of aging or finishing the alcohol-containing products are also provided.