What Does Barrel Proof Mean - Web full proof whiskey is typically bottled at exactly 80% abv, while barrel proof whiskey can vary widely in strength,. Web put simply, full proof is the whiskey's proof when it first enters the barrel, and both barrel proof and cask. The difference between full proof, barrel proof, and cask strength bourbon.
Web full proof whiskey is typically bottled at exactly 80% abv, while barrel proof whiskey can vary widely in strength,. Web put simply, full proof is the whiskey's proof when it first enters the barrel, and both barrel proof and cask. The difference between full proof, barrel proof, and cask strength bourbon.