Grill jockeys can be a pretty grubby lot, but they’re quite fastidious when it comes to their grill grates. That’s because this is the part of the grill that actually comes in contact with the food. Besides being disgusting, a dirty grate causes food to stick, and it won’t give you well-delineated grill marks. So savvy grill jockeys keep their grates clean and always oil them before putting on any food that may stick.