First, it’s important to understand that our desiccant packs are non-toxic: meaning safe on the inside (made of clay), safe on the outside (the fabric used) and most importantly, safe for contact with your possessions. Our product is made of environmentally friendly natural clay, without additives and is chemically inert. The clay used in our Desiccant is Montmorillonite clay, which is a very pure absorbent clay found in near-surface deposits all over the world and is commonly used in medicine, cosmetics and even pet food. Most important, the fabric used for our desiccant packs is a non-woven fabric that’s porous enough to be breathable for moisture abortion and release, and can withstand up to 250 degrees in the oven for reuse!