If You Care Parchment Baking Sheets come in 24 pre-cut sheets and they are made with high-quality, non-toxic materials. Use Baking Paper for baking, roasting, reheating and wrapping. Microwave-safe and oven safe up to 428F/220C. Unbleached Natural silicone coated for superior release qualities No greasing necessary Microwave and oven safe Made from unbleached totally chlorine-free (TCF) greaseproof paper so no chlorine or chlorine derivatives are dumped into our lakes, rivers and streams. The cardboard packaging is recycled and unbleached, and the inks for printing are vegetable based making the product vegetarian and vegan friendly - Nice.