Scientists from Scotland and Japan are preparing to send Scotch whisky into orbit to study how the spirit ages in space, with a planned launch scheduled for 2028. The project involves placing a small satellite, or cubesat, equipped with whisky samples and base ingredients into a five-year orbit around Earth. Researchers aim to observe how the extreme temperature fluctuations experienced during each 90-minute orbit affect the whisky’s maturation process.

The experiment, dubbed "Space Puffin," will be launched aboard a SpaceX supply mission to the International Space Station (ISS). From there, the cubesat will be deployed into orbit via the Japanese module of the ISS. The spacecraft will expose the whisky to cycles of rapid heating and cooling, with temperatures ranging from approximately -150 degrees Celsius to 200 degrees Celsius, conditions that are far more severe than those faced during traditional whisky ageing on Earth.

Dr. Gilles Bailet of the University of Glasgow, who is leading the project, explained that the initiative is designed both to explore the potential acceleration of whisky maturation in the unique environment of space and to gather data on the broader scientific implications of manufacturing in orbit. The experiments could inform the future of producing certain complex molecules, including pharmaceuticals, that are difficult to synthesize under Earth-bound conditions.

“The science around the process of whisky 'breathing' as it ages in wooden casks is not well understood,” Dr. Bailet said. He and colleagues hope that the fluctuations of heat and cold in orbit might speed up this process, potentially resulting in whisky with distinctive, robust flavors. The university students involved in the project have collaborated closely across Scotland and Japan to develop the engineering aspects of the cubesat, which will hold only tiny samples of whisky and its ingredients.

While space-aged whisky would likely be prohibitively expensive due to launch and recovery costs, there is a strong market for rare and collectible whiskies, some of which have fetched hundreds of thousands of dollars. This project represents an intersection of traditional craft and cutting-edge space science, also serving as a test case for the viability of orbital manufacturing facilities.

The Space Puffin experiment is expected to run for five years, offering a unique opportunity to analyze the effects of microgravity, radiation, and rapid temperature shifts on the ageing process of whisky and potentially other chemical processes as well.