Scotch whisky three years. Any age statement on a bottle of Scotch whisky, expressed in numerical form, must reflect the age of the youngest whisky used to produce that product. A whisky with an age statement is known as guaranteed-age whisky. A whisky without an age statement is known as a no age statement (NAS) whisky, the only guarantee being that all whisky contained in that bottle is at least three years old. The first written mention of Scotch whisky is in the Exchequer Rolls of Scotland, 1495. A friar named John Cor was the distiller at Lindores Abbey in Newburgh, Fife,
Whisky must be aged in new charred-oak containers, except for corn whiskey which does not have to be aged. If it is aged, it must be in uncharred oak barrels or in used barrels. Corn whiskey is usually unaged and sold as a legal version of moonshine. If one of these whiskey types reaches two years aging or beyond, it is additionally designated as "straight", e.g., "straight rye whiskey". A whiskey that fulfils all above requirements but derives from less than 51% of any one specific grain can be called simply a "straight whiskey" without naming a grain. US regulations recognize