I have a corny (5 gal) keg of homebrew, already carbonated, that's been aging at room temperature. I'd like to bottle it off soon, but in my experience that works best when the beer is in the 45-50 degree Fahrenheit range.
Tonight the weather forecast for my area says it will get down to 29, and tomorrow it will be right around 45. I'm inclined to just stick the keg on the fire escape tonight and leave it until the afternoon. I'm not really worried about freezing, given the alcohol content I understand it should be able to go down to 28 or 29 without trouble (correct me if I'm wrong here).
I can't seem to find any reliable resources about air cooling, just recommendations for folks trying to cool beer as fast as possible. Will the keg be cool enough tomorrow to bottle?
EDIT: The forecast now says it could get as low as 24, so the freezing question may also be an issue. The keg is outside, so we'll see what happens.