Let us know if it works -- I thought you'd need dry ice...
Once, much to my dissappointment, I packed my ice chest in prep and drove "over the hill" to get some fav ice cream I was craving from a local made shop in a nearby town. Sadly they warned me without dry ice the ice cream would not be kept cold enough for the trip home. Something about the temp cream freezes vs water.
Well, I'd driven all they way there for my Marianne's Peppermint Ice Cream in the middle of summer and I was gonna get me some! Much to my dismay they were right. I arrived home to a swimming lump of ice cream within the carton.
These would be really great if they work -- if anyone buys one I'd love to hear a review please. smileys/smile.gif