George Dickel Superior Signature Recipe Whisky is crafted from a mash of 84% corn, 8% rye, and 8% malted barley, which are milled and mashed before being fermented with a proprietary strain of yeast. Following fermentation, the whisky is distilled and then matured in casks that have been charred with a #2 char on the heads and a #4 char on the staves (the degree of charring within a cask is measured on a scale of one to four, with a #1 char referring to casks that have been lightly toasted, and a #4 char referring to casks that have been charred so heavily that the interior resembles an alligator hide). Once the whisky has matured, it is chilled to 40AF and then mellowed through sugar maple charcoal. This process is rather unusual (most distilleries that mellow whisky through charcoal do so prior to maturing it in oak barrels) and contributes a hint of smoky sweetness to the whisky.