If you want to Think Sustainably when using parchment paper, keep in mind that White parchment paper means it is Bleached, and Brown parchment paper is Unbleached Chlorine-free parchment and is fully biodegradable. Instead of disposing of each sheet after every use, reuse it. Another alternative is to use Silicone Baking Mats, which are considered to be safe. Here are a few non-toxic bakeware ideas to keep in mind.