In Norway we used to get kegs of an English beer called "Star Light" and it wasn't to our taste. We "customised" the brew by digging a hole in an ice bank, and placing the metal keg in it, covering the keg with snow and ice.
The considerable water content of the beer in the keg froze overnight, and we ran off the remaining neat alcohol into a container. We then had to dilute the neat alcohol with ice or water, until we got the equivalent of about three standard bottles of 50% proof vodka from the keg, (depending on the content of the keg when we froze it). For reasons of "health and safety" we had to make sure that about 10% of the keg content had been run off prior to the big freeze, as a burst keg would have given no return whatsoever, but would maybe have turned the snow and ice a pretty colour!
We called it "The Beast of Bardufoss", until they twigged that a few kegs had gone missing and stopped supplying us with it. (Then a few people went missing etc.)
Don't think it would ever have made it to the shops, as it really needed a dash of (frozen) Arctic berries to take the awful taste away, and Arctic berries aren't readily available anywhere else other than the Arctic. We tried Coca Cola, but it wasn't the same! Helped to see us through the Arctic winter when we ran out of "sputnik" (illegal distillation of water, potatoes and sugar). You can buy legally distilled vodka in Norway from the state run "vinmonopolet", if you sell all your furniture. My sister is over there visiting relatives at the moment, but she's missed the Star Light season by a couple of months. Hope they haven't sold the guest room beds to buy vodka for her coming!