The fresh anchovy is salted to preserve it. Salting is a traditional process and particular attention is paid to the maturing stage where the fillets are kept in the salt water for a whole year.
During this process they are not subjected to any kind of sterilisation, which means they must be kept at a temperature of no more than 5ºC, which is considered as a semi-preserve. From the food and nutritional point of view, the anchovy is a very healthy canned food. As it is a blue fish it is high in omega 3, and also contains proteins of high biological value and minerals like calcium, magnesium and iodine. This type of canned food also contains B group vitamins (B6, B2 and B3).