Weber drip trays protect your Weber barbecue from fat and juices that otherwise become baked on, making them difficult to remove again. Weber drip trays also collect juices to make perfect gravy. It is a good idea to place some liquid in the bottom of the drip tray. Otherwise fat and juices can get burnt and give the food an unpleasant taste. Weber drip trays have high sides to prevent spills when removing them from the barbecue. They also have a sturdy design making them reuseable.