If you wish to cook on the barbecue grill just for an occasion, then you will get helps from your surroundings on cooking properly in a barbecue grill. But if you are to use barbecue grill quite regularly, then you need know the coals and their burning behavior very well. Coal that has ash coating and less red color flame is not a good coal choice. Coal that light gray covered ash has better flammability. Coals that burn with red glow generates enough heat and are best for use in barbecue grill. While you cook on barbecue grill, you have to ensure constant flow of heat, you cannot manage it without knowing the burning behavior of different kinds of coals. There are some briquettes commercially available that you can also try.