While single malt whisky is already good whisky, single grain is of an outside category that few people know about. A single grain whisky is distilled from a variety of grains, and are sourced from a single distillery. These serve as the basis for the overall blend, malt whisky is besides are very rarely bottled on their own recipe. The Nikka Coffey Grain is corn-based while most modern grain whiskies are wheat-based. The corn Imparts the whisky with a round and generous texture and intense aromatics.