Cask Craft · Maturation Science

The cask chooses the whisky — maturation outlasts distillation.

Maturation Impact Score by Cask Type — compound influence of oak, char, and prior fill on spirit character over twelve years in bond.

Virgin Oak 94 94 Sherry Butt 87 87 Bourbon Barrel 76 76 Port Pipe 68 68 Hogshead 55 55 Compound Maturation Index (0–100) — cooper‑graded blind tasting panel, n = 47
Source: H.M. Customs & Excise, Warehouse Ledger No. 47, Campbeltown District, 1938 Oak & Spirit·07
This is the Whisky Cooperage design system, applied by Curio Design — a design-style library for AI agents. Full Whisky Cooperage guide → designbycurio.com/learn/whisky-cooperage-oak