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Dried and salted cod or salt cod is cod which has been preserved by drying after salting. Cod which has been dried without the addition of salt is stockfish. Salt cod was long a major export of the North Atlantic region, and has become an ingredient of many cuisines around the Atlantic and in the Mediterranean.
With the sharp decline in the world stocks of cod due to overfishing, other salted and dried white fish are sometimes labeled as "salt cod", so the term has become to some extent a generic name.
Dried and salted cod has been produced in Norway, Newfoundland, Iceland, and the Faroe Islands for over 500 years. Traditionally it was dried outdoors by the wind and sun, but today it is usually dried indoors with the aid of electric heaters.
The production of salt cod dates back at least 500 years, to the time of the European discoveries of the Grand Banks off Newfoundland. When explorer Jacques Cartier 'discovered' the mouth of the St. Lawrence River in what is now Canada and claimed it for France, he noted the presence of a thousand Basque boats fishing for cod.
Salt cod formed a vital item of international commerce between the New World and the Old, and formed one leg of the so-called triangular trade. Thus it spread around the Atlantic and became a traditional ingredient not only in Northern European cuisine, but also in Mediterranean, West African, Caribbean, and Brazilian cuisines.
The drying of food is the world's oldest known preservation method, and dried fish has a storage life of several years. Traditionally, salt cod was dried only by the wind and the sun, hanging on wooden scaffolding or lying on clean cliffs or rocks near the seaside.
Drying preserves many nutrients, and the process of salting and drying codfish is said to make it tastier. Salting became economically feasible during the 17th century, when cheap salt from southern Europe became available to the maritime nations of northern Europe. The method was cheap and the work could be done by the fisherman or his family. The resulting product was easily transported to market, and salt cod became a staple item in the diet of the populations of Catholic countries on 'meatless' Fridays and during Lent.
Dried cod and the dishes made from it are known by many different names, many of them derived from the root bacal-, itself of unknown origin; explorer John Cabot reported that it was the name used by the inhabitants of Newfoundland. Some of these are: bacalhau (Portuguese), bacalao (Spanish), bakaiļao (Basque), bacallà (Catalan), μπακαλιάρος, bakaliáros (Greek), baccalà (Italian), bakalar (Croatian), kabeljauw (Dutch), "makayabu" (Central and East Africa). Other names include ráktoguolli/goikeguolli (Sami), tørfisk/klippfisk/clipfish (Scandinavian), stokvis/klipvis (Dutch), saltfiskur (Icelandic), morue (French), saltfish (Caribbean), toe rag (UK), bakaljaw (Maltese), "labardan" (Russian).
The fish is beheaded and eviscerated, often on board the boat or ship. (This is feasible with whitefish, whereas it would not be with oily fish.) It is then salted and dried ashore. Traditionally the fish was sun-dried on rocks or wooden frames, but today it is mainly dried indoors by electrical heating. It is sold whole or in portions, with or without bones.
Prior to the collapse of the Grand Banks (and other) stocks due to overfishing, salt cod was derived exclusively from Atlantic cod. Since then products sold as salt cod may be derived from other whitefish, such as pollock, haddock, blue whiting, ling and tusk.
In Norway, there used to be five different grades of salt cod. The best grade was called superior extra. Then came (in descending order) superior, imperial, universal and popular. These appellations are no longer extensively used, although some producers still make the superior products.
The best klippfisk, the superior extra, is made only from line-caught cod. The fish is always of the skrei, the cod that once a year is caught during spawning. The fish is bled while alive, before the head is cut off. It is then cleaned, filleted and salted. Fishers and connoisseurs alike place a high importance in the fact that the fish is line-caught, because if caught in a net, the fish may be dead before caught, which may result in bruising of the fillets. For the same reason it is believed to be important that the klippfisk be bled while still alive. Superior klippfisk is salted fresh, whereas the cheaper grades of klippfisk might be frozen first.
Lower grades are salted by injecting a salt-water solution into the fish, while superior grades are salted with dry salt. The superior extra is dried twice, much like Parma ham. Between the two drying sessions, the fish rests and the flavour matures.
Before it can be eaten salt cod must be rehydrated and desalinated by soaking in cold water for one to three days, changing the water two to three times a day.
In Europe the soaked and boiled fish is prepared for the table in a wide variety of ways; most commonly with potatoes and onions in a casserole, as croquettes, or as battered, deep-fried pieces. In France, brandade de morue is a popular baked gratin dish of potatoes mashed with rehydrated salted cod, seasoned with garlic and olive oil. Some Southern France recipes skip the potatoes altogether and blend the salted cod with seasonings into a paste. In the Italian region of Basilicata, it is prepared with typical peppers called "cruschi" (dialect word for "crunchy").
In Jamaica it forms the basis of the national dish ackee and saltfish. In Bermuda, it is served with potatoes, avocado, banana and boiled egg in the traditional codfish and potato breakfast.
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