The Closing the Loop project, in collaboration with the UMCG and Hanze University of Applied Sciences, is a follow-up to the Circular Plastics project. The bioplastic, PHA, is produced by bacteria and is biodegradable. It offers a solution to the pollution caused by conventional plastic that does not break down. In this project, we are investigating how PHA can be used in a circular manner: from production by bacteria to processing, degradation, and recycling as a nutrient for bacteria. In this way, we demonstrate how PHA can be recycled and reused for a sustainable future free of plastic pollution.