Bioplastic Curbside Trash Do Not Recycle Bioplastic will not break down in a backyard compost pile. Bioplastic is not recyclable. To avoid contaminating other recyclables, place in garbage. Don’t Compost at Home Bioplastic will not break down in a backyard compost pile. Ways to Reduce Avoid Plastic Even though bioplastic began as plant matter, it’s been processed so that it’s no longer organic material. When possible, opt instead for reusable, recyclable or naturally compostable materials such as glass, metal, paper, cotton or wool. Did You Know? What Is Bioplastic? Traditional plastic is made from petroleum-based products, while bioplastic is made from living materials such as plant matter. The plant matter is processed or polymerized to become a plastic.