I buried some kegs of bock in the snow which insulates if from the air temp. The other day it was below zero here and I dug one out to check it and the beer wasn’t frozen not even the dip tube. I believe the snow temperature keeps it at just around 30 deg. Wouldn’t do it in glass though.
technically, freezing glass should have no issues as long as the liquid has room to expand if it freezes?!
And as there’s always headroom…
I froze all my cider and cyser solid this winter, some of that in a glass carboy. Brought it indoors to thaw. Turned out beautiful but it did take a couple days to thaw out. The glass is unharmed, at least as far as I can tell.
Has been 72hrs now outside where the temperature has fluctuated between -10 celsius and around 0 celsius.
Still hazy. I’m going to have to bottle cloudy I think and presume that when juice is heat pasteurised before fermentation, it will never clear.
Not for lack of trying. As long ad it tastes good enjoy it.
