CPLA is similar to PSM. They are all biodegradable plastics derived from plant starch. When CPLA Cutlery biodegrades, it will decompose into the organic matter: CO2 and water. Polylactic acid is the only biodegradable plastic with excellent antibacterial and antifungal properties. So it is very healthy. CPLA is very tough and has advantages in cutting tools. And PLA is completely compostable.