Made from the same material as FoodSaver vacuum seal bags, the FoodSaver 11"""" x 16' Vacuum Seal Roll lets you create custom-length bags so you can store anything from everyday items to leftovers. Constructed of Bpa-free multi-ply material that blocks moisture and oxygen, these rolls protect their contents from freezer burn and spoilage up to 5x longer than non-vacuum storage methods. And because sealed bags are air-tight and durable, they prevent floating during the sous vide water bath for consistent and delicious cooking results. Constructed of Bpa-free multi-layer material, FoodSaver bags are safe for sous vide cooking and are designed to withstand boiling temperatures.