While vodka technically freezes at -27C (-16F), alcohol solutions rarely freezes in the normal sense. It generally forms a sludge, and doesn't crack the bottle. It should be safe to store in the cold.
this post was submitted on 21 Oct 2023
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TIL, don't know why I didn't realise spirit levels are called "spirit" for a reason - it's not colored water inside ๐ญ
Heres a neat fact. In German it is called a "water scale" (Wasserwaage), so I also have never thought twice about what kind of liquid is in there.
The freezing point of ethanol is -173.5ยฐF. so I'm going to say it's safe.