Plumbata
Well-Known Member
I have a full 50 year old 6-pack that had sat in a garage for decades, freezing and thawing many times. There has been no damage to the bottles whatsoever, and I'm letting them sit out there this winter yet again. A thin druggist might break if liquid freezes within but these returnable glass bottles were built like tanks and intended to withstand significant internal pressure. I'd leave the contents alone provided you're sure they are original.