When using IF YOU CARE Parchment Paper Rounds, no greasing your pans is necessary. This is because our paper is coated with silicone on both sides. Most other parchment papers are coated with Quilon - which is a chemical containing chrome, a heavy metal – and when incinerated, it becomes toxic and leaves trace elements in your baked goods. The reason why the majority of other brands use Quilon coated parchment paper is because the cost is substantially lower than using silicone coating. Like all our paper products, our Parchment Paper is totally chlorine-free, so no chlorine or chlorine derivatives are dumped into our lakes, rivers, and streams. IF YOU CARE is a brand that cares about our health and environment as much as you do. That’s why our kitchen and household items are all carefully crafted to have the least environmental impact and leave the least carbon footprint possible, while at the same time, delivering the highest quality products. This bulk pack contains 20 boxes of 24-count circle liners, providing a total of 480 precut, unbleached, round baking sheets that are FSC Certified.