Balvenie 12yr Single Barrel First Fill Single Malt ScotchThe Balvenie Single Barrel First Fill is a 12 year old single malt whisky, aged in a first fill, ex bourbon cask. Almost all Scotch whisky is matured in casks previously used by Bourbon distillers. When brought to Scotland and used for the very first time they are known as First Fill. Balvenie's Malt Master samples the aged whisky, cask by cask and selects only those characterized by sweetness and subtle vanilla oak to be bottled as The Balvenie