Especially if you cool the chest first with a block or bag of ice first is it amazing how long they will last, especially if it is fairly full. At WSIR in the summer, if I can keep the ice chest in the understorage of the motorhome, the ice will last from Friday through the weekend. In the summer.
This past weekend, not knowing what the weather would do, I packed up eight 1/2 gallon plastic milk bottles that were well frozen. I put them in the ice chest on Thursday morning after cooling it for about 1 hour with a small ziplock bag full of ice.
I just unloaded it this evening (Monday), and would you beleive that all the blocks were still 80-90% frozen and even the small bag of ice still was partially frozen. Granted it was cool but I did open the ice chest on a couple of occassions just to check it out.
Give it a try if you use a cool suit.
