Every year, over 15 million zero-waste plates and bowls are made by Biotrem in Poland. The company heats and moulds plates from pure wheat bran, a residue that is usually considered as waste. The result? A strong biodegradable product range that decomposes within 30 days. With over 12 million tonnes of plastic going into the ocean every year, this is an easy alternative to plastic and is not only waterproof, but microwavable and oven-proof.