Devil's Cut

Devil's Cut denotes the portion of whiskey that migrates into the oak barrels and remains lodged in the wood's pores during aging. The absorbed liquid is, in practical terms, lost to the bottled whiskey, because it cannot be retrieved by ordinary tapping. Economically, it constitutes a loss per barrel, and the effect can be particularly pronounced in warm climates or with barrels that have high diffusion.

Mechanism

• Ethanol and water diffuse from the stored whiskey through the wood's pores and cell walls.
• The wood absorbs aroma- and color compounds such as vanillin, oak lactones, and other lignin-related compounds.
• The exchange is influenced by barrel type (new and charred) as well as climate and aging duration.

Consequences for aging and loss

• Increased volume loss and thus lower bottling amount per barrel compared to standard aging.
• Sensory change: wood characters become more prominent in the tapped whiskey, especially if the liquid remaining in the wood has contributed flavor compounds.

Sensory profile and components

• Typical wood-related components include vanillin, oak lactones (β-methyl-γ-octalactone and isomers), as well as tannins and other lignin-related compounds.
• The result can be a deeper vanilla, caramel and spice note with a distinct wood character.

Product development and marketing

• Some producers use techniques to extract part of the liquid from the wood by heating or applying pressure and blend this into a new batch, after which the product is marketed as Devil's Cut.
• Other descriptions of Devil's Cut refer to the natural extra wood character in the tapped whiskey without further extraction steps.

History and use

• The concept originated as marketing within American bourbon aging and is widely used today to describe the significant, but partly involuntary, wood influence of aging.

See also: Angel's share, wood infiltration.