The endothermic gas reaction takes place in two steps or stages. In the first stage, some of the methane. burns with air creating an exothermic (heat generating) reaction. In the second stage, the surplus methane. reacts with the carbon dioxide and water vapor produced in the first stage. This second stage is endothermic. (heat absorbing).
Pat the chicken drumsticks dry with clean paper towels. Cover them with plastic wrap or aluminum foil to warm them up to room temperature for 30 minutes. Preheat a gas or charcoal grill to 400 degrees F. If you are using a charcoal grill without a temperature gauge, this will take about 20 minutes.
Place the Loaded Grates on the Grill. Now place the grates over the fire. Within 10 minutes or so, the chicken will begin cooking. About 30 minutes after putting the meat on the grill, sprinkle barbecue seasoning on the meat conservatively (1 lb. of seasoning will do approximately 40â50 lbs. of chicken).