Depth defying: Domhayn's 'deeply distinctive' approach to cask maturation

Scotland's newest drinks brand, Domhayn, is rewriting the rules of traditional maturation by plunging casks into the mysterious depths of Scotland’s lochs.

This pioneering hydrostatic diffusion technique, developed in-house, alters spirit composition in unprecedented ways – representing a potential game changer for the drinks industry.

A Scottish loch. A submerged cask. A world-first innovation.

Domhayn – named after the Gaelic word for ‘deep’ – was born from an unexpected moment of inspiration. Founder James Patterson was watching wild swimmers take a celebratory dram after a dook in Loch Ness when the idea struck – what if a whisky cask could be submerged, too?

Fast forward 20 years of research and for the first time in history a spirit-filled wooden cask has been plunged to the depths of Loch Ness, some 214 meters (702 feet) beneath the surface, where extreme hydrostatic pressure subtly alters its molecular profile.

This revolutionary process enhances and smooths spirits, creating unique flavour profiles compared to those achieved by traditional maturation.

"This is about pushing the boundaries of how we understand spirit maturation," says Domhayn’s founder, James Patterson. "We know the environment a cask matures in has a huge impact, but no one has explored the application of pressure like this before. The results have been astounding."

The First-ever Release

Domhayn’s inaugural release comes from cask DLNABK, which was submerged in Loch Ness on Valentine’s Day 2025. This 2010 single malt barley spirit*, bottled at natural strength 55.5% ABV, is a true rarity – only six bottles exist.

"When we retrieved the cask, the difference was undeniable," James explains. "The spirit had developed a distinctly different aroma and smoothness – something traditional maturation simply couldn't achieve in the same timeframe.

"Given its uniqueness, we expect collectors and enthusiasts to be very curious about how this method compares to conventional maturation.

"What’s more, our proprietary technique isn’t limited to spirits – it also applies to wine, rum, and vodka – and that makes it incredibly exciting."

The first bottle will be auctioned online on Friday 25 April 2025 at www.whiskyauctioneer.com

Ahead of launch, Domayn has shared samples with a select group of industry experts.

"Tasting the before and after samples reveals a distinct difference, both in flavour and mouthfeel", says Andrew Wilson, Commercial Manager at Young Spirits, Edinburgh. 

Bespoke Bottles

Each bottle of Domhayn can be traced back to the precise location where its cask rested on the loch bed, ensuring a unique provenance for every release.

"Each bottle comes with the precise coordinates of where its cask rested," says James. "It creates a direct, tangible link between the spirit and the environment that shaped it."

Science Meets Craft

Domhayn have been experimenting with submersion cycles, which can range from minutes to a year or more.

“Submersion causes the cask to compress and decompress, triggering a unique interaction between the wood and the spirit involving both extraction and absorption,” explains James. “It’s a one-off opportunity – each cask can only withstand one dive before the pressure permanently alters it.”

To ensure authenticity and quality, the spirit from each cask undergoes molecular-level analysis at the Department of Chemistry at the University of Oxford.

James said: “We wanted to go beyond tasting notes and detect for molecular-level changes in the spirit. To do this, samples from each of the casks were tested by the Department of Chemistry at Oxford University using chromatography coupled to mass spectrometry.

“The technique measures differences in the compounds found in samples. The results showed a different molecular composition in the processed samples, providing evidence that our process alters the molecular level profile of the spirits compared to control samples.”

Exclusivity In Every Drop

Each unique cask produces no more than 72 bottles, with every bottle presented in a bespoke waxed-cotton “paper bag,” designed in collaboration with Canadian fashion designer Charlotte McKeough – a fitting tribute to Domhayn’s fusion of innovation, tradition and style.

"This is something for those who appreciate true rarity, innovation, and a drop of adventure in their glass," James concludes. "It’s not just a spirit – Domhayn is a deeply distinctive experience.

“For collectors, connoisseurs and pioneers of taste, we believe Domhayn offers something truly extraordinary.”

Discover more at www.domhayn.com