While camping beer in cans is the way to go as they are light weight and easy to collect to recycle/ dispose of afterwards. They are easy to stack in the eski and there is no risk of breakage.
In addition you can use them for other purposes… If you do not have pots or pans you can cook eggs in beer cans. Just cut an opening in the can and coat the inside with some cooking spray, crack the eggs inside and put on the barbeque or near the campfire. You can scramble the eggs in the can or leave whole. Sprinkle some spices on top and eat for breakfast.