PLA is an environmentally friendly plastic made form plant starch (usually corn). PLA is therefore an organic CO2-reducing option to plastic made out of fossil fuel like PE, PS, PP and PET, since this material is compostable and won't leave any traces in nature. This cutlery set is suitable for all kinds of foods at temperatures up to +40°C without time limit and up to +70°C for 2 hours. Up to 100°C for max 15 minutes.