To prepare the charcoal grill for cooking, light a load of charcoal in a charcoal starter. While the charcoal is heating up, remove the cooking grids and stainless steel heat diffuser from your charcoal BBQ. Next, place one or two trays at the bottom of the BBQ and fill them with water, chicken broth, or even a light beer-like IPA. Open the bottom vent about ¼ of the way, adjusting it to the first notch. To either side of the drip trays, add a little unlit charcoal and, for added flavor, some chunks of your favorite smoke wood. Once the charcoal is ignited, pour half of the load on each side of the trays. Close the lid and preheat the grill to approximately 350°F. You will need to open or close the vents to manage the temperature.