Achieve the right heat for that perfect potato.
For hot, long-lasting coals, throw hardwood logs the thickness of your wrist on the fire. Wait for the flames to die down (up to an hour). Coals should be white-hot with glowing centers. To test the heat, hold your hand a few inches away—you should be able to hold it still for a second or two before it’s too hot to stand (don’t burn yourself). Find a nook for your foil-clad food between coals and logs, but keep it out of direct flame.