On Dec 21, 3:13*pm, "dennis@home" >
wrote:

>
> > But not in glass bottles ...
>
> Champaign is deliberately frozen in glass bottles.
>

I once kept wine in an old fridge in the shed during the summer. When
winter came and the thermostat turned out to be broken, the
temperature dropped. At -5 deg C there was no sign of freezing, even
after several weeks, but when the temperature suddenly fell to -10 deg
C the wine froze to a slush which pushed the corks sometimes partly
and sometimes fully out of the bottles without breaking them. Screw
tops bulged up and in some cases came off completely. A bit messy,
but no damage was done and the wine was still perfectly drinkable
afterwards - most of it remained as the bottles had been upright.

John