Two things I can recommend. The first is the 58 quart Coleman Ultra Xtreme
marine cooler. Both in practical sailor's and my tests it beat the
expensive high end marine coolers by a significant margin.

There is also a product called Technice. It comes as flat sheets that you
hydrate to form little gel packets and then freeze as low as you can get it.
It appears to spread out the hard 32F freezing point so that it absorbs heat
at a fairly even rate. Far better performance than Blue Ice or any of the
other reusable packs.

Last month, May 30 at 8PM to be exact, I packed 12 pounds of steaks, a
Honey Baked ham and 8 pounds of shrimp, all hard frozen in a 58 quart
Coleman Ultra Xtreme marine cooler with 4 sheets of Technice on top and a
beach towel on the bottom. The next morning it was checked on an airline to
St. Thomas where it was lost for 3 days somewhere between Atlanta and Ft.
Lauderdale. The cooler was delivered to West End, Tortola and unpacked on
June 3 about 1 PM and everything was still frozen solid.

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com

"cavelamb" wrote in message
news

Anyone out there use dry ice for refrigeration?

I want to keep the cooler cooler longer.


A couple pounds of dry ice seems like a good idea,
but how to use it?

Mix with wet ice?

Or keep separate?

Richard