Domhayn 1991 Loch Ness Edition

This is the first rum release from maturation innovators Domhayn, an unprecedented single cask rum hydrostatically-diffused in a cask submerged at the depths of Loch Ness.

Cask DLNMI1, a small European oak cask seasoned for 12 months with a blend of oloroso and Pedro Ximénez sherries, was filled with a 30-year-old solera-matured Caribbean rum. ​​​​​The cask was then lowered to the depths of Scotland's iconic landmark on 27th September 2025, sitting an incredible 218 meters (715 feet) below the surface. Under more than 280 PSI of pressure, the extreme conditions alter the spirit as the cask compresses - a phenomenon unseen in traditional maturation.

Samples of the spirit before and after submersion have been analysed using mass spectrometry by the University of Oxford, demonstrating a decrease in sulphur molecules and an increase of those attributed to the cask itself.

The bottle itself features the exact coordinates where the cask lay on the loch floor. The bottling was originally presented in a handmade, leather-lined, wax-cotton bag, produced in collaboration with Canadian fashion designer Charlotte McKeough.

This is one of only six bottles made available from the brand's first submerged rum cask.