Barrel Like with other spirits, longer aging results in a more pronounced flavor. Traditional balsamic vinegar is aged in a series of wooden barrels. Since its invention in 1868, the pepper mash used to make Tabasco sauce is aged for three years in previously used oak whisky barrels. Beers are sometimes aged in barrels which were previously used for maturing wines or spirits. This is most common in darker beers such as stout, which is sometimes aged in oak barrels identical to those used for whisky. Whisky distiller Jameson notably purchases barrels used by Franciscan Well brewery for their Shandon Stout
Scotch whisky the other, a "whisky – product of Scotland" that complies with the generic EU standard for whisky. According to the Scotch Whisky Association, allowing non-Scotch whisky production in Scotland would make it difficult to protect Scotch whisky as a distinctive product. The majority of grain whisky produced in Scotland goes to make blended Scotch whisky. The average blended whisky is 60%–85% grain whisky. Some higher-quality grain whisky from a single distillery is bottled as single grain whisky. Blended malt whisky—formerly called "vatted malt" or "pure malt" (terms that are now prohibited in the SWR 2009)—is one of the least common