These products are certified 100% compostable by BPI. That means that all our plates, bowls, cups, and cutlery can go into the commercial compost with food scraps. The Biodegradable Products Institute (BPI) uses the American Society for Testing and Materials (ASTM) standards to certify that products really compost. These scientifically based standards determine if a product is compostable in a commercial facility within 180 days.