Originally Posted by Jaffi
Well, got some problem with my foil. Thickest foil I can get my hands on here in germany is of 18 mu thickness. Now, though I keep it really tight, as soon as I put my coals on it, it sucks down. I think that happens because as soon as it heats up, it expands. Any suggestions? I think I will try to use more foil
It is definitely not enough holes. Not that anyone would do this, but if you were to pack a bowl and cover it with foil with NO holes, put a coal on it and watch it get sucked in. It's the chemistry of heat applied. Poke more holes and it won't suck down nearly as much. Good luck.