Here's why we love Reynolds Kitchens Slow Cooker Liners! Line: Fit the liner snugly against the bottom & sides of the slow cooker bowl, then pull the top of the liner over the bowl's rim. Cook: Place your ingredients into the liner. Place lid and cook according to recipe then serve! Be careful of escaping steam when you remove the lid. Clean Up: Let the slow cooker cool completely before removing the liner and tossing. Wipe any moisture and cleanup's done! 8s: clean up guaranteed.