Ardberg Distillery sits on the south coast of the Isle of Islay in picturesque Argyll and Bute in Scotland. It’s a world away, quite literally, from the International Space Station (ISS), which travels at 17,000 mph at some 250 miles above the surface of the Earth, completing an orbit every 90 minutes.
In August 2011, these two unlikely partners were brought together by an experiment to see how the absence of gravity effects turpenes – organic compounds associated with flavour in spirits and wines. Micro-gravity environments are a fascination for companies looking for novel ways of producing products. Space-matured whisky is undoubtably a novelty!
Ardberg prepared a package of 6ml of whisky distillate (unmatured whisky) and shavings from oak maturation casks. This was sent to the ISS via a Soyuz rocket launched from Khazakstan. in January 2012 the whisky and wood shavings were mixed at the same time as identical quantities of whisky and shavings were mixed together on Earth. Both whiskys were matured for 971 days, after which the intergalactic sample was brought back to Earth and sent to Ardberg for comparison with its Earth-bound sample.
In case you are wondering why Ardberg didn’t simply send a cask into space, the cost of putting a kilogram of mass into orbit is currently around £5,000. Significantly cheaper than it used to be but still very expensive! For a 200 litre american oak barrel that would likely cost in excess of £1 million.
And what were the results of the experiment? Arberg published a detailed report, and noted that although the samples were very similar, the flavour profiles were different.
One of the most interesting results is that the sample matured in space did not take on as much of the oak characteristics as the sample matured on Earth. If this is due to the lack of gravity then it may be that in the future it would be possible to more accurately determine the age of whisky by analysing the concentration of oak characteristics. Perhaps this might also help prevent whisky fraud in the the future if nothing else.
Whisky and space, two of our favourite topics!
Image by “STS132 undocking iss2” by NASA – http://spaceflight.nasa.gov/gallery/images/station/crew-23/hires/s132e012212.jpg. Licensed under Public Domain via Commons.