Originally Posted by
For Steve
So I’m not a physicist but the Techni Ice sheets only get as cold as the freezer you freeze them in. I’ve found they don’t live up to their claimed performance on longevity and they do split. I have some but now use them in a small esky that I take along to BBQ’s and picnics. I love the 3L fruit juice bottles. Clean out well first and it makes good drinking water when they melt – about 4-5 days in my esky.
I think a 12V or gas freezer would be the ideal choice to keep things frozen for a trip that long. They can be expensive though.