With unbleached, fully chlorine-free greaseproof paper instead of plastic, these premium quality certified unbleached, non-stick parchment roasting bags create a unique way to roast beautiful Holiday, hams, chicken, fish, and more. They effectively seal in the liquids to produce succulent, juicy, and tender meat that practically falls off the bone. They are completely natural, gluten-free, and oven-safe up to 428 degrees Fahrenheit. They are the only parchment roasting bags that are non-stick.