Using liners may or may not be your go-to choice while cooking in the slow cooker, but no matter how you feel about them, a few recipes in this book do recommend using them. Things like oatmeal can get stuck pretty easily onto the slow cooker, and these liners make cleanup so much easier! While you might not think cleaning your slow cooker is difficult, after 45 tested recipes, I was grateful for them! However, if you are not comfortable using them and simply do not want to, no need to worry; they are optional and won’t affect the outcome of any of the recipes. Choose whatever you feel is right for you!