Grown.bio produces foam products from mycelium, which is the root structure of a fungus. The foam grows in moulds from a basis of agriculture waste streams. The foams are solid, light, fireproof and water resistant. They can be used in packaging, design and building products. At the end of its usefull life, the foams are completely compostable in nature. Grown.bio products have a Cradle to Cradle gold certificate.