This expression is the fourth edition of the well-renowned Octomore 10 Year Old. This release was distilled in 2009, peated to a strong 208ppm, and then matured in a mix of first- and second-fill American oak, and virgin oak casks, and has been bottled at cask strength with no chill-filtration or added colour.A longer maturation has allowed for a gentler Octomore to be produced, with any harsher edges rounded off in the oak.
Disclaimer: this is only 'gentle' in comparison with other Octomore expressions - it's still an intense and fiery dram!