Use Miller, Whisky Science, printed pp. 355–356 for the dilution/headspace relationship and pp. 360–361 for the tasting-water mechanism. Rothbaum, The Whiskey Bible, displayed p. 49 / PDF sheet 124 and displayed p. 51 / PDF sheet 128 provide independent sensory and practitioner corroboration. Retain the preface citation only as an overview.
Changing alcoholic strength can alter tasting experience by changing the ethanol-water-congener matrix and the relative headspace availability of aroma compounds.
Verified against Miller’s rendered PDF pages 7, 363–364, and 368–369, corresponding to printed p. vii and pp. 355–356 and 360–361. Rothbaum’s water-addition and Old Forester proof-setting passages were visually checked at displayed pp. 49 and 51 / PDF sheets 124 and 128 on 2026-08-25.
The effect is congener-specific, nonlinear, and condition-dependent. The evidence does not predict a universal direction or magnitude for every whiskey, and Miller notes that a complete predictive model is lacking.
Miller supplies direct experimental synthesis showing that ester activity and headspace balance change with alcoholic strength and that adding water can move some aroma compounds above sensory thresholds. Rothbaum independently corroborates the perceptual result through a general tasting discussion and an incremental proof-setting trial.
Remains Ready for Drafting with Strong evidence and Moderate confidence. Batch 024 adds independent perceptual corroboration but does not remove the explicit limits on prediction, direction, or magnitude.
Claim
Changing alcoholic strength can alter the flavor matrix and the tasting experience, not merely dilute all flavor compounds proportionally.
Evidence
Miller supplies the technical foundation: alcoholic strength changes the ethanol-water-congener environment and the relative headspace availability of aroma compounds. Rothbaum independently reports that a small amount of water can release additional aroma and flavor and that adjacent proof points tasted different during an Old Forester proof-setting exercise.
Boundary
Effects are congener-specific, nonlinear, and condition-dependent. The evidence does not predict a universal direction or magnitude for every whiskey, and it does not imply that adding water always improves a pour.
Drafting guidance
Use Miller to explain the mechanism, then use Rothbaum as an accessible practitioner-facing illustration. Preserve modal language such as can and may.
Readiness decision
Ready for Drafting with Strong evidence and Moderate confidence; technical support is now independently corroborated at the sensory-observation level.