The Balvenie Scotch Single Malt 21 Year PortwoodTo create the Balvenie Portwood, rare 21 year old Balvenie Speyside scotch, which has been matured in traditional american oak casks is transferred to 30 year old port casks, or pipe, which has held fine port wines. Here it is sampled every month by The Balvenie Malt Master to ensure that just the right amount of character is imparted by the port casks, enhancing and developing the single malt, whilst preserving its original characteristics. This