by eamarquardt » Wed Mar 23, 2011 6:31 pm
Team Varekai wrote: Later that evening my son went to get a soda and wondered why someone put their empty can in the chest

He grabbed another one, when he tried to open it it was froze to a slushy-like state.....we all thought WOW this really works

Until the next day when everything was froze SOLID, there were even cans that burst, ripped the can right down the side. So needless to say, ice was not an issue that trip, but there were a couple of drinks runs that had to be made. So I guess in moderation, say fill chest with drinks, then ice, then a little salt on top should suffice. I haven't tried it again because SHE won't let me

LOL So folks, there's my 2 cents, enjoy.

Everything in life is a compromise. Adding salt created a salt solution that freezes at a temperature lower than water. So, when some of the ice melted (requiring 144 btu/pound) that energy went into lowering the temperature of the remaing ice (which required 1/2 btu/pound for each degree the ice temperature is lowered) and the temperature of the cooler dropped below 32f. For example, in theory one pound of ice melting could lower the temperature of 24 pounds of ice from 32f to maybe 26f ice (but I'm not sure you can add enough salt to reach this temperature). The downside of this equation is that your ice will not last as long. So depending on what you want, reallllly cold drinks (salt it down) or maximum ice life (but slighly warmer drinks) to salt or not to salt is the question.
Cheers,
Gus
The opinions in this post are my own. My comments are directed to those that might like an alternative approach to those already espoused.There is the right way,the wrong way,the USMC way, your way, my way, and the highway.
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