Wood is an active material
Oak interaction can introduce tannins, lignin-derived vanillin and lactones. Char level, previous cask use and climate influence extraction.
Time and climate interact
Maturation is not a simple age counter. Temperature cycles change movement between spirit and wood, while evaporation and oxidation continuously reshape the liquid.
Multi-cask architecture
The source highlights programmes combining ex-bourbon, wine and PX sherry casks. Each cask history contributes a different family of compounds and sensory references.
Source and accuracy notice
Adapted from the supplied Alcohol and Cigarettes Website Content document; numbered source markers were unresolved and are retained as internal notes rather than links.
Full methodology