Useful exploratory fractionation evidence; not proof of a sensory mechanism, universal age clock or validated distillery signature.
Claim captured during full page-by-page processing of the supplied source.
The authors interpret the selected product measurements as oxygen-18 enrichment associated with aging and preferential loss of lighter fractions. Figure 4 compares different finished products and is not uniformly monotonic across age categories; it does not validate an age-prediction rule.
7
Stable-isotope case study
Rechecked PDF 6–7, printed 24–25 and Figures 3–4 on September 27, 2026. Author interpretation retained with cross-product design and nonmonotonic pattern made explicit; not a controlled longitudinal barrel trial.
Verification: Paraphrase or source-claim description checked against PDF page 7 on 2026-09-04; not presented as a verbatim quotation.
Evidence record
Captured evidence
The authors interpret the selected product measurements as oxygen-18 enrichment associated with aging and preferential loss of lighter fractions. Figure 4 compares different finished products and is not uniformly monotonic across age categories; it does not validate an age-prediction rule.
Context
Claim captured during full page-by-page processing of the supplied source.
Research annotation
Use as evidence of evaporative fractionation; do not present isotope enrichment as a flavor mechanism.
Connected records
- Source: No access
- Literature note:
Literature Note — Kentucky Springs, Geology, and Bourbon Production
- Citation: