Dewars The Signature 25 Year Old Blended Scotch Whiskey is one of Dewars oldest and rarest whiskies with a minimum of 25 years maturing in the finest oak casks, blended together and finished in Royal Brackla single malt casks. A celebration of the signature style of each of Dewars master blenders from the pioneer of double ageing; A.J. Cameron, to the current Master Blender Stephanie Macleod. Dewars 25 delivers notes of heather honey, cream and nuts; a refined oak cask Whiskey that bestows a sweeter, more velvety note on the long finish.