Made with 40% earth mineral and are durable, grease-resistant, microwaveable and recyclable. This significant reduction in plastic material results in a smaller environmental footprint for a happier planet Microwave-Safe BPA & PFAS Free Grease-Resistant Made with 40% earth mineral and are durable, grease-resistant, microwaveable and recyclable. This significant reduction in plastic material results in a smaller environmental footprint for a happier planet