On Sat, 01 Jul 2006 10:09:07 +0100, Chris Newport
wrote:

Hmmmm - Carbon dioxide in a boat.
Darwin removes any idiots who try this from the gene pool, hopefully
before they breed and produce more idiots.

Boats on distance races have been using dry ice on frozen foods for a
long time and I have never heard of any problems. The quantities are
small and the evaporation rate low. We used two different approaches:
one was to put it in the bottom of the ice box under the blocks of
water ice to extend their life, and the second was to pack a prefrozen
meal in a styrofoam cooler packed with a block of dry ice.