4. Make a Grill Shield
If your food starts to cook (or burn) more quickly than you desire, make a grill shield by folding a piece of heavy-duty aluminum foil in thirds, the way you would fold a letter, and sliding the shield under the food. The shield will block the heat, slowing the cooking process. A shield also works well for keeping the exposed ends of bamboo skewers from burning.
Sumber: http://barbecuebible.com