This plastic-free and tree-free sugarcane clamshell box is made from 100% natural bagasse plant fiber. GeoTegrity bagasse clamshell box is 100% biodegradable, compostable and recyclable, and the products are certified by BPI, OK COMPOSTABLE, FDA, REACH and HOME COMPOSTABLE. Our sugarcane clamshell box can also be heated in a microwave oven and kept fresh in the refrigerator. Bagasse Clamshell is specially designed to hold greasy foods without having liquids seeping through. It is ideal for hot meals, hamburgers and sanwhiches.