Buckshot13 , I agree with Bee and Norad45, I had tried Hefty Oven liners, turkey pans etc.. and they did not leak when I first took my fist and made a cup out of the aluminum,
But when I took another sheet out (had to cut the sheet out of the pan) (Very Very sharp edges) I tested it after I packed it. I folded it and folded it as if it were going in my pack, then unfolded it and held it up to the light and noticed the pin holes again. It would definitely boil water after some time but it leaked a lot as the hotter it got. I realized that all this is fine until you start folding things together and the metal starts work harden and starts to get small cracks resulting into small holes. Then I decided to go with the stainless steel 32 oz bottle cup and use the aluminum as a primary cooking surface. I wouldn’t put my life on the line with this thin aluminum, maybe a aluminum cup but definitely not foil of any kind. If going out into a unknown, take the cup.


Cup