Scotch whisky whisky" is any spirit that qualifies as a single malt Scotch whisky or as a blended Scotch whisky. The latter exclusion is to ensure that a blended Scotch whisky produced from single malt(s) and single grain(s) distilled at the same distillery does not also qualify as single grain Scotch whisky. Three types of blends are defined for Scotch whisky: The five Scotch whisky definitions are structured in such a way that the categories are mutually exclusive. The 2009 regulations changed the formal definition of blended Scotch whisky to achieve this result, but in a way that reflected traditional and current
Scotch whisky types of Scotch: a blend of single malts from more than one distillery (possibly with differing ages). Blended malts contain only malt whiskies—no grain whiskies—and are usually distinguished from other types of whisky by the absence of the word "single" before "malt" on the bottle, and the absence of a distillery name. The age of the vat is that of the youngest of the original ingredients. For example, a blended malt marked "8 years old" may include older whiskies, with the youngest constituent being eight years old. Johnnie Walker Green Label and Monkey Shoulder are examples of blended malt whisky.