"Tudor Hughes" wrote in message
oups.com...

Graham P Davis wrote:
The notice on my toothpaste tube says "store below 25C". I suppose I
should
have kept it in the fridge last month - along with those medicines having
the same instruction. Must be tricky for families with young children.
Perhaps they have a small fridge with a padlock on it specifically for
medicines.

--
Graham Davis
Bracknell

Toothpaste is glycerine, a mild abrasive, probably talc, and a
trace of flavouring. These are all stable indefinitely at well over
100°C It's probably some loony Euro-regulation with the sole effect
of making people worry unnecessarily. You could even store it in the
oven though it would be it bit runny until it had cooled down.


And don't forget titanium dioxide to make it white, thermally stable
up to 1850°C
--
Col

Bolton, Lancashire
160m asl