// CASK STRENGTH DAILY / Learn
Bourbon Science
The physics and chemistry behind aging, barrel char, and evaporation.
Rickhouse Science
Why floor level, wall-vs-center placement, and barrel rotation change how a barrel ages, with a cutaway of the heat gradient inside a rickhouse.
Open →Proof & Dilution Calculator
US proof is exactly twice ABV by regulation; see the math, and why diluting to an exact target proof is only ever an estimate.
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