The Dalmore Highland Single Malt Scotch Whisky recently introduced a new 21 Year Old, the newest whisky in the brands Principal Collection. This expression will be an annual release, and is limited to only 1,000 bottles available in the U.S. In a statement from the distiller, The Dalmore 21 is described as the essence of the carefully-composed spirit produced by The Dalmores stills, with a character developed over two decades.