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.
Start off by preheating your grill to its highest setting. Now put the pork chops on the grill and close the lid for a minute. After the minute passes, flip the chops over. This where you will want to turn down the heat to a medium setting. After another minute, rotate the chops then close the lid for 3 minutes. When the 3 minutes pass, flip the pork chops again and turn down your grill to its lowest setting.