>>854829You can get leaching of BPA from this. Cans really aren't designed for cooking, so I don't know if there are any conclusive studies on what the impact would be..
You could also reduce weight and space significantly by using dehydrated food and a single pan. Canned food is usually pretty heavy because of the water weight. I also think that their shape makes them more difficult to pack. I bring tuna pretty often, but I use the pouches over cans for this reason.
