I've been smoking meat for years and I've been doing what I've been told to do, mostly. That includes, for example, taking your foiled butt or shoulder out of the smoker, wrapping it in an old towel, and putting it in your cooler to rest for a number of hours. My question is, why is the cooler not sufficient alone? Why the need for the towel if one's cooler is efficient? Does it slow the cooling process as a preference or necessity for some reason, as in, there's a not-so-obvious scientific reason for it? Does an efficient cooler give you the same results? Am I doing this simply because back when coolers were made of wood (as my daughters would say) that's what they did and it's been passed down with no challenge? I know these might be simplistic questions and the answer obvious to most but I'm asking anyway. For a friend...