Last weekend I was away at a beach house with some friends. We were having a barbecue and I decided, after we finished cooking, that I would try to boil some water in a container made with the aluminum foil in my pocket tin.<br><br> Well, after I fashioned my container it leaked. I passed a few squares of HD aluminum foil around and everyone's design leaked eventually ( Who says you can't have survival party games? ;-) ).<br><br> We managed to boil water with the hot coals but, left overnight with water on them, even those "cups" leaked.<br><br> Is there a specific way to create a more permanent "waterproof" HD foil cooking vessel, or is this just the way it works?<br><br><br>Thanks in advance;<br><br>Guillermo Pico-Munoz<br><br><br>PS. I was not using Reynold's, but another brand of HD foil. Could that be it?<br><br>