On 22/05/2021 18:59, charles wrote:
In article ,
Pamela wrote:
Amazon/Morrison's deliver frozen food with ice packs containing some
fluid which doesn't stay frozen in my freezer.

It is probably "Dry Ice". Frozen Carbon Dioxide. Your freeze°r would need
to beta -78°C to keep it frozen ;-)

It isn't. Carbon dioxide solid sublimates, there is no liquid phase at
normal temperature and pressure.

Perhaps Madame Pamela should try alt.morrisons.icepack.discussion.********