Distilled in summer 2009 from Optic barley grown in the farm's south fields, this is Daftmill's first 15-year-old release, vatted from 20 casks (19 first-fill bourbon and one Pedro Ximénez, a first for the distillery) and bottled at what Daftmill calls its "traditional Fife strength." As with all Daftmill age-stated and single-cask releases, the exact bottling proof varies from batch to batch.