Hey Stew, What do you measure the temperature with when it REALLY gets cold?
I seem to remember reading somewhere that whiskey freezes at -40ēc...does that help?
Andrew
I don´t think "normal" whiskey (37% alcohol, usually) will take anything like that. In the case of Russian vodka, which is standardized to 40% ethanol by volume (same as 80 proof), the freezing point is -26.95° C or -16.51° F.
Pure ethanol - freezing point -114 degrees celcius (-114 °C). 75% ethanol (there´s Polish vodka with that percentage!) will freeze at about -50 degrees C. -40ēC would mean a 50-55% solution of ethanol - is there
any whiskey that strong? (BTW. The temperature and percentage do not have a linear dependence).
Coldest I have experienced was -47
oC, in Finland. One strong reason why we moved to Portugal...