Cooking for a crowd? Make the worst part of cooking the easiest with the Blackstone Grease Cup Liners. The patented rear grease griddles make it easy to manage the grease, but these liners make disposal mess free. Place the liner in the grease cup before you start cooking and once you are done, push the excess oil and scraps of food to the back of the griddle to the rear grease opening. The liner will catch all the mess easily. Once the liner is full, simply discard it and replace it with a fresh one to make clean up a breeze.