Malt whisky whisky regulations require malt whisky to be made in pot stills using water and malted barley without the addition of any other cereals, and the whisky must be aged for at least three years in oak casks. The use of new barrels is not required. Caramel coloring can be added, but no other additives are allowed. Irish whiskey regulations are almost identical to Scotch regulations. Malt whiskey must be distilled in a pot still from a mash of 100% malted barley, which may be peated or unpeated in character, although unpeated malt is typically used. All Irish whiskeys must be
Heaven Hill Kentucky Whiskey bourbon and 80% neutral grain spirits (similar to grain alcohol with no color or smell). Neutral grain spirits can be aged in used oak barrels or not aged at all, while "straight" bourbon must be aged a minimum of two years in newly charred oak barrels and must not be distilled to such a high level of alcohol content that the flavor of the original mash is removed. Heaven Hill Distilleries also produces five other blended whiskies: Gukenheimer, Kentucky Deluxe, Kentucky Beau, T. W. Samuels and Wilson. Food critic Morgan Murphy said "This bourbon's strong fruit notes and mellow oaks