These steam pan liners are guaranteed to protect pans from messy grease and baked on foods. Made from high-density polyethylene, these liners are perfect to use on pans when dealing with hard-to-clean foods like: cheese sauces, fudge and caramel sauces, gravies, etc. They are also suitable for steam freezer, slow cooker or microwave. These liners are designed for single use, allowing you to skip all the washing and scouring, and simply twist up the leftover ties to keep or throw away.