Octomore 13.1 5 years ushers in a new series of whiskies that introduces you to the very smoky and experimental character of Octomore whisky. This single malt is fully matured in American oak after the distillation, which was 100% Scottish barley-based. Both refill and first-fill casks were used to mature this whisky and Octomore 13.1 does an excellent job of introducing you to the robust and pure character of the whisky. Bottled at 59.3% alcohol, making this a whisky with power.