Whether it's your first Bonnaroo or you’re a music festival veteran, we welcome you to Inforoo.
Here you'll find info about artists, rumors, camping tips, and the infamous Roo Clues. Have a look around then create an account and join in the fun. See you at Bonnaroo!!
I did dry ice last year and it worked out great. I put enough dry ice to cover the cooler, not sure how thick it was. Here's my post from that last thread:
Throw the dry ice (still in the bag) in the bottom on top of a towel. Then throw in as many PRE-FROZEN bottles of water as you can fit in there. Last year I froze all the water bottles beforehand, and the bottom layer was still frozen when I unpacked at home on Monday. Put another towel on top of the water bottles, then add whatever you want to keep cold on top of that. If you do it right, you'll have a solid block of ice, which your cooler should keep frozen for a while on its own, plus the dry ice underneath it continually keeping everything cold. Open the cooler as little as possible.
Works like a charm. Only bought bags of ice for the beer cooler.
Like others have said, though, anything not wrapped in plastic or sealed up in bags or containers is going to get "fizzy." It's not pleasant, but it isn't bad if you're really hungry. Not sure I'd eat much of it though, it's probably not too healthy.
Claytonator's advise is very solid. He uses a lot more dry ice than I do, but I really like his setup. A word of caution with this (on the too cold side). I used a similar setup and then added beer and ice on top of it. My beer wasn't completely cold and started to melt the ice just a little bit. The arctic blast from the dry ice then froze the slightly melted ice around all of my beer. It basically turned the entire cooler into a giant block of ice that we had to chip through to get to each beer. Damn cold beer all weekend long, but a bit more work than I'd bargained for.