Just curious how many people have used/experimented with dry ice in there coolers to "flash freeze" there catch on the water. Usually, when I'm on an overnight or two on the water (camping) I will buy a small block of dry ice to make sure my catch stays fresh as possible. Now, it is a little more expensive than regular ice, but given all the other monetary inputs of a good fishing trip, it's rather minimal. I get it at Albertsons for $6 a pound. Given that dry ice is more than double the weight of water ice, a pound is not very much (approx. 2lbs in a frozen 16 oz soda bottle). BUT....it last awhile. Here is what I do.
I get about 2-3 lbs and put it in a SMALL lunch cooler. I then throw that small lunch cooler in a nice big 5-day cooler. The dry ice will completely freeze the small cooler, and keep the large cooler very chilled. this will last two days solid. I put my fillets on/next to the small cooler (inside the big cooler) and they will freeze solid in about 4 hours. Works great, and you don't have to have semi-frozen fish for two days in the cooler. (this is for when I want to bring fish home from a multi-day trip) Anybody else experiment with the dry ice, and have any special techniques? Better for preservation? Plus, no soggy cooler water to soak the rest of your goodies....
