Have you noticed the different new “green” bags in your supermarket or grocer? They claim to be 100% compostable and biodegradable. Most of them are made from PLA, a bioplastic. Bioplastic is a new type of plastic generally made from plant starch or sugars, and not from petroleum. Having the name BIO in the plastic can be a bit misleading since they don't just biodegrade … [Read more...] about What is PLA plastic?