Some maturation effects may arise because wood-derived components alter the structure of the spirit matrix and the activity of congeners, even when the whiskey’s bulk chemical composition changes relatively little.
Miller explicitly states that a predictive model is lacking and that reported results contain discrepancies. Matrix structure is a plausible contributor, not an established complete explanation of maturation.
This mechanism helps explain why maturation can produce large sensory changes that are not captured by tracking only total compound concentrations. It links wood extraction, proof, and aroma availability through the behavior of the ethanol-water-congener matrix.
Derived from visually verified Miller evidence at printed pp. 364–365 (PDF pp. 372–373) on 2026-08-24. No Claim created yet; retain as Developing until corroborated or narrowed. September 28, 2026: Fresh Miller audit: the matrix contribution to mellowing remains a hypothesis. Frozen-sample DSC, NMR shifts, simulations and commercial age comparisons do not establish one age mechanism. The existing linked marriage-in-wood Claim is related context, not proof of this matrix mechanism; preserve Developing maturity.
Maturation may alter sensory availability through matrix structure, not only through bulk composition.
Atomic idea
Wood-derived components can change the activity of congeners in the ethanol-water matrix, potentially producing sensory change even when total chemical composition changes relatively little.
Reasoning
This mechanism links maturation and proof to what becomes available in the headspace. It explains why measuring only total compound abundance may miss changes in sensory expression.
Provenance
The Miller Literature Note connects the chapter summary at printed pp. 364–365, where the author synthesizes matrix research and its limitations.
September 28 source audit
Fresh Miller audit: the matrix contribution to mellowing remains a hypothesis. Frozen-sample DSC, NMR shifts, simulations and commercial age comparisons do not establish one age mechanism. The existing linked marriage-in-wood Claim is related context, not proof of this matrix mechanism; preserve Developing maturity.
Counterpoint and limit
Miller states that a predictive model is lacking and that reported results contain discrepancies. Matrix structure is one plausible contributor, not a complete or deterministic theory of maturation.