Additives are substances that are added to food products to perform certain functions (e.g. to change texture, increase the shelf life of a product or to add vitamins). In Europe, all food additives are identified by an E-number. They are always included in the ingredients list on product packaging. All the additives we use at Puratos have been thoroughly tested and approved by national and international food safety authorities and are only used if the specific technical advantage they provide is useful in the end product..