Dewar's Double Double 30 Year Old is inspired by a process pioneered by Dewar's in 1901. Our Double Double Series has been aged, blended together, aged again, then finished in sherry casks for the Ultimate Smoothness. Dewar’s Double Double 30 Year Old is finishedin Pedro Ximenez sherry casks, this brings rich, ripe treacle notes with a hint of smokiness and the silky smooth finish.Dewar's Double Double 30 Year Old is inspired by a process pioneered by Dewar's in 1901. Our Double Double Series has been aged, blended together, aged again, then finished in sherry casks for the Ultimate Smoothness. Dewar’s Double Double 30 Year Old is finishedin Pedro Ximenez sherry casks, this brings rich, ripe treacle notes with a hint of smokiness and the silky smooth finish.