If charcoal grilling is your choice, remember that the number of briquets required for grilling depends on the size and type of the grill, the type of food being cooked, and the weather. Use the following as general rules of thumb. When grilling on an especially windy day, in cold temperatures, or in high humidity, use a few more briquets than normal to make sure the fire stays hot enough to thoroughly cook the food. Arrange charcoal briquets in a pyramid at the bottom of the grill. Spread in a single layer or bank them, set food rack in place, and put on the food.
Coals stay hot for about an hour.
Charcoal should extend about 1 inch beyond the area the food will cover to cook evenly. Place grill away from overhangs, fences, deck railings, dry leaves, and shrubbery that could be ignited by a sudden flare-up or flying spark. Remember the grill can become hot enough to ignite flammable materials. Position grill in a well-ventilated location. Keep children and pets away from the grill when in use.