Airmapper
Inactive Member
The statement below is correct. A styrofoam gas station cooler would likely hold ice for a week in those temperatures at the end of winter/beginning of spring.
No one said his statement was wrong. The point I'm trying to make is not that he's wrong, it's that thinking of how good a cooler is by how many days it will hold ice at an unknown temperature is useless. He's spot on about days not meaning anything, measuring a coolers effectiveness by days is like trying to say how many months tires last, it totally depends on the conditions. While acknowledging this though, he seems to still desire a measure of days a cooler will hold ice at warmer temperatures, which is still a useless figure. What he wants to know is what's the best cooler for the money, and to know that you need to compare them. Whatever temperature you compare at, be it above freezing, is irrelevant.
There is a guy in the Ozark Trail cooler thread that is doing an excellent comparison of 3 coolers. Sure it's at cooler springtime temps, but it will be useful information, regardless of temperature. He will know how those coolers rank among themselves.
Comparing coolers in any temperature significantly above freezing will work. You just need something to compare it to, put the same amount of ice in two coolers in the same environment, and see which one melts first. Boom, better cooler of the two is known, without sweltering temperatures. Doing 2 at a time you could eventually rank all coolers no matter what the external temperatures involved and have a fair comparison. The only thing that it being hot means is you don't wait as long to find out.
You could even figure out how well a cooler will do at higher temperatures if you do several time to melt tests at cool temps. Say, 40, 45, 50, and 60 degrees. From that you could predict how long it might hold ice at 70 degrees, or 100 degrees. It probably won't be a straight line on a graph, but you could calculate it, the more data points the more accurate it would be. It also wouldn't be fun waiting weeks for ice to melt, but it would eventually melt.