KODEX Meltz PVA Bags Meltz PVA bags spent over six months on trial with expert consultants to ensure the film used to make the bags is both strong and securely sealed, but also melts down at a quick rate to allow for perfect presentation. They leave virtually no residue. They are easy to open and don't stick together. Available in both plain and perforated versions, each in three sizes, these are arguably the best PVA bags in all of Europe for both quality and value.