The GoWISE USA reusable toaster bags gives you the chance to make the best toasted sandwiches mess free. The transparent bag makes it easy to see when the food is ready. The bags are also very easy to clean, just turn the bag inside out and stick them in your dishwasher. They keep your appliances free of crumbs and eliminates the chances of cross-contamination. The bags are heat resistant up to 500 degrees Farenheit. They are made of PTFE coated fiberglass fabric (PFOA Free) that are FDA & SGS Approved.