Well the easiest way to clean a Barbecue or Barbecue Grill is to keep on top of it. When you finish grilling give everything a wipe over. Get the grease and burnt carbon off while it is still soft. Use the BBQ wire brush to get the grill rack clean. If you use it a lot before you put it away for the Winter get it cleaned by a professional BBQ Cleaning company such as OvenGleamers.