Dish change

Barrel transfer is the process of moving the whisky from one cask to a new or different cask during maturation in order to influence maturation development and the flavor profile.

• Purpose
• Renew contact with the wood and alter the aroma by exposing the spirit to new wood and its toasted oak notes (vanilla, caramel, spices).
• Adjust color, body and the balance between sweetness and dryness.

• Manage the maturation rate and the overall balance by changing the wood-contact surface and the tannins from the existing cask.

• The process

• Transfer of whisky from one cask to a new cask or another cask (e.g., from a used bourbon barrel to a fresh French oak or to a sherry cask) to influence the wood's contribution.
• Hygiene and controlled conditions: the casks are cleaned, oxygen exchange is minimized, and temperature and humidity are monitored.

• Schedule: barrel transfers can be a temporary adjustment during maturation or part of a finishing process.

• Impact on maturation and sensory characteristics

• Aroma and flavor: changes in notes of vanilla, caramel, spices, oak notes, as well as contributions from the previous cask (e.g., dried fruits from sherry).
• Color and mouthfeel: often a deeper color and a fuller mouthfeel.

• Finish and balance: altered finish and the persistence of the flavor.

• Types of casks and combinations

• Different cask types such as American oak (bourbon cask), French oak, as well as sherry, port, Madeira or rum casks, contributing with different characteristics.

• Blending of casks, where the spirit moves between several cask types during maturation to achieve complexity.

• Practical considerations

• Traceability and documentation: recording dates, cask IDs, quantity and alcohol strength.
• Risks and handling: risk of cross-contamination, uncontrolled oxidation or over-oaking if the timeframes are not observed.
• Logistics and resources: requires draining, cleaning and transporting to another cask in a controlled environment.