World Centric® Large fiber burrito bowls are made from bamboo and unbleached plant fiber, an annually renewable resource. These disposable bowls contain no wax or plastic lining, and are freezer safe. They are certified compostable in a commercial facility, which may not exist in your area. *Sizing description has been revised from 32 oz to Large (32 oz) and reflects the flush fill capacity. The practical fill capacity is 22 oz to the step.