Eco-Friendly Bio-Compostable Clamshell box is a 100% food-grade packaging box that is Biodegradeable within 90-120 days. Cornstarch food solutions have been developed using polylactic acid (PLA), which is made from fermented sugars, usually from corn/maize. The product is oil and water-resistant [spillproof] and safe for microwave/freezer use. This packaging solution uses less energy compared to the pulping of wood for paper products - Usable temperature between -20C to 120C, microwave and refrigerator friendly - Meets CIPET food hygiene processing standard - ASTM 5338 Certification for Biodegradability.