100% Foode Grade Material1. Our products are made from 100% food-grade silicone that is 3rd-party quality tested 2. Doesn't support the growth of fungus, mold or bacteria.3. Microwave, dishwasher and oven safe (up to 450 F degrees).4. Free of BPA, BPS, PVC, lead and phthalates.5. 100% Lifetime Guarantee with proof of purchase.