Straight whiskey as the higher proof spirit loses most flavoring compounds during the distillation process, and does not gain flavors from barrel aging. Blended whiskey may also contain additives for coloring and flavoring. Canadian whisky, which is typically a blend, also uses straight-whiskey-style spirits as a major flavor component, though Canada does require at least three years of aging (usually in used barrels) to qualify any product as Canadian whisky or as "rye whisky". Straight whiskey Straight whiskey (or straight whisky), as defined in United States law, is whiskey created by distilling a fermented (malted or unmalted) cereal grain mash to create
Whiskey Rebellion distilled beverage in the 18th century, so the excise became widely known as a "whiskey tax". Farmers of the western frontier were accustomed to distilling their surplus rye, barley, wheat, corn, or fermented grain mixtures into whiskey. These farmers resisted the tax. In these regions, whiskey often served as a medium of exchange. Many of the resisters were war veterans who believed that they were fighting for the principles of the American Revolution, in particular against taxation without local representation, while the federal government maintained that the taxes were the legal expression of Congressional taxation powers. Throughout Western Pennsylvania counties,