Green Seal Certified. No Chlorine Used to Make This Product. The coffee filters in this package are made from 100% unbleached paper. The philosophy behind Beyond Gourmet™ is to provide the consumer with fine quality products that have minimum impact on our precious environment. No chlorine is used in the making of our paper products therefore no harmful byproducts are released into our environment. In choosing Beyond Gourmet™ you are demonstrating that your concerns go beyond the kitchen to a cleaner and safer environment.