Talisker has launched the limited-edition Glacial Edge 45 Years Old – finished in oak casks that were fractured in icy conditions before being used for maturation.

The 45-year-old single malt Scotch whisky is the final release in a series of whisky-making experiments by Talisker, undertaken in partnership with marine conservation charity Parley for the Oceans.

To create the expression, 12 heavily charred American oak casks were shipped from the distillery on the Isle of Skye to Canada's Arctic ice fields. A cooper removed the cask ends and they were then left in sub-zero temperatures for four days, causing the wood to fracture and therefore increasing the surface area with which the whisky could interact during its finishing period in the casks back in Scotland.

A portion of proceeds from sales of Talisker Glacial Edge will be donated to Parley for the Oceans, which the distillery has been working with for the past three years. Previous Talisker whisky releases created through this partnership include Wilder Seas and Forests of the Deep.

Greg Long, surfer and Parley for the Oceans ambassador, said: “I have spent nearly my entire life immersed in the ocean and in that time I have come to realise just how intimately connected the mountains and ocean truly are. The mountains play a vital role in regulating climate patterns, influencing rainfall patterns and temperature variations that directly impact the health of the ocean. Protecting and preserving both is essential to maintain the delicate balance of these ecosystems and ensure the wellbeing of countless species, including humans, who rely on them for sustenance, climate regulation, and recreation.

“I am grateful to work on this project highlighting the beauty and fragility of both invaluable ecosystems.”

Talisker Glacial Edge 45 Years Old is available to purchase from specialist retailers globally and via diageorareandexceptional.com with a recommended price of £4,500 per 70cl bottle.

Coinciding with the launch of Talisker Glacial Edge, travel agency Abercrombie & Kent is now running Talisker whisky tasting experiences in Iceland which include the chance to explore a glacier.