Cook off any food residue on the cooking grids using high heat for about 15 minutes. Briquettes can be cleaned by removing them, placing them upside-down on the mounting points, and running the grill on high for about 20 minutes.
Use a copper grill brush to scrub off remaining food particles. For difficult cleaning, place the grates in a large tub of water containing 1 to 2 capfuls of ammonia. Let the grates soak for a couple hours to dissolve grease
Clean out the cooking area below the burners by removing any food residue, grease, and oils. Check the burner ports for blockage and clean as needed. You may want to store the burners in plastic wrap to prevent rust or insect infiltration.
Clean the remaining interior, cabinets, and LP tank with hot soapy water. Allow the grill to dry completely.
The stainless steel can be cleaned using a polish or rust remover. Always scrub in the direction of the grain. Use the mildest available agent first. For stubborn stains, a non-metallic abrasive pad may be used. Always refer to the care and use manual supplied with your grill.