Cooking for a crowd? Make the worst part of cooking the easiest with the Blackstone Grease Cup Liners. Our patented rear grease griddles make it easy to manage the grease, but our 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 debris to the rear grease opening at the back of the griddle. 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.