Eco-friendly&biodegradable;Harmless,nontoxic, and odorless. Heat-resistant(120degrees Celsius), vegetable oil proof, and water-resistant.Frost-resistand (minus 15 degrees Celsius) Passed ISO14855( the biodegradation rate reaches 91.07% within 102 days) Meet international environment protection standards. Passed national hygiene tests Meet &Exceed FDA required standards