Our line of plates and bowls are made from bagasse, the fibrous material remaining after sugarcane stalks are crushed to extract their juice. Because sugarcane grows to maturity in 18 months and is already being harvested for food, this material is very environmentally friendly. Certified compostable by the Biodegradable Products Institute (BPI), a third-party agency. Grease and cut resistant. Microwave and freezer safe. Sturdy - no need to double up. Lid BOL-CS-8 fits this item