The Portuguese first cannery was born in 1879 in Vila Real de Santo António in the Algarve. The Portuguese Cannery produces about 60 000 tonnes of canned fish per year. It is undoubtedly one of the engines of national development, economic, social and cultural. The production of canned fish, by species and in percentage is 48% sardines, 27% mackerel, 24% tuna and 1% for others. The Portuguese Canned fish is produced with the Portuguese coast fish, caught by Portuguese vessels and processed by Portuguese labour. At this point of view, we can say that it is 100% Portuguese. The canned fish is a natural product, with no preservatives or dyes and extremely safe. The nutritional properties of the fresh fish do not change. It’s rich in omega 3, with a high biological value protein and high levels of calcium (in the case of canned sardine). The vitamins, they are best preserved because they are not exposed to air (oxygen) and therefore do not undergo oxidative degradation, all while preserving the value of these vitamins.