For those of you wondering, this is apparently how it works. Seems plausible in theory, but it seems like the heat management would be tricky.
Step 1: Load your bowl with extra shisha. This works best with wet shisha, such as Romman Shisha Tobacco, Social Smoke or Fantasia Shisha Tobacco. It should make a small dome in the middle of the bowl.
Step 2: Place your charcoal directly on the top of the pile.
Step 3: This step is absolutely crucial, DO NOT SMOKE IT for 10-15 Minutes. This time is left for the coals to cook the top layer of shisha. This is where that extra shisha comes in handy. The top layer is cooked into a charred “screen” of shisha – no metal screens or foils needed. (Note: this will produce more smoke coming from the bowl, so be sure to do this in a well ventilated area or outdoors.)
Step 4: Puff at will.
If you all think it’s worth a shot, then I will give it a try and report back. Until then, happy smoking!
Review von: http://www.hookah-shisha.com/hookahlove ... -foil.html
