![Fish_in_salt_crust-01](https://upload.wikimedia.org/wikipedia/commons/e/e2/Fish_in_salt_crust-01.jpg)
A salt crust is a method of cooking by completely covering an ingredient such as
fish
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of li ...
,
chicken
The chicken (''Gallus gallus domesticus'') is a domesticated junglefowl species, with attributes of wild species such as the grey and the Ceylon junglefowl that are originally from Southeastern Asia. Rooster or cock is a term for an adult m ...
or vegetables in
salt
Salt is a mineral composed primarily of sodium chloride (NaCl), a chemical compound belonging to the larger class of salts; salt in the form of a natural crystalline mineral is known as rock salt or halite. Salt is present in vast quantitie ...
(sometimes bound together by water or
egg white
Egg white is the clear liquid (also called the albumen or the glair/glaire) contained within an egg. In chickens it is formed from the layers of secretions of the anterior section of the hen's oviduct during the passage of the egg. It forms arou ...
) before baking. The salt layer acts as insulation and helps cook the food in an even and gentle manner. After baking, the salt crust is cracked and discarded, revealing the moist and evenly cooked food.
Technique and foods
![Saltchicken](https://upload.wikimedia.org/wikipedia/commons/4/43/Saltchicken.jpg)
Typically delicate foods such as fish, chicken/poultry or vegetables are cooked using this method. In each case the aim is to lock in moisture, protect the food from drying, ensure even cooking, and maximise the flavour.
The salt crust can be created simply by adding a sufficient quantity of coarse or fine salt to cover the food item. Water may be sprayed on top, to help the salt form a hard crust. Alternatively, the salt may be mixed with egg white to form a pliable paste.
Baking typically occurs in an oven at around , with the salt crust acting as a cooking vessel. This slows heat transfer to the food creating a slow and low dry oven, beneficial to most proteins.
To serve, the crust is broken and carefully removed, to avoid leaving excess salt residues in the food.
Steak can also be cooked using a similar method rather than broiling it and risk the loss of its juices. Coating a pan with salt and cooking the steak, ideally approximately an inch thick or less, on top yields a more moist and flavourful cut. The pan is heated until the salt crackles and steaks cooked with this method usually involves a crispy crust made of the salt. This is a key difference to other salt crusts as usually it is discarded but in this case it is used to add texture and flavour to the steak.
History
The earliest recipe found for salt-baked is from the fourth century BCE in
Archestratus
Archestratus ( grc-gre, Ἀρχέστρατος ''Archestratos'') was an ancient Greek poet of Gela or Syracuse, in Sicily, who wrote some time in the mid 4th century BCE, and was known as "the Daedalus of tasty dishes". His humorous didactic po ...
' ''Life of Luxury''. The recipe details for a whole, round white fish such as sea bass, snapper or sea bream that was cleaned and then gutted. The fish is seasoned with thyme being inserted into the cavity of the fish prior to the salt crust encapsulating it in two pounds of salt glued together with water and egg whites.
In a
Muslim
Muslims ( ar, المسلمون, , ) are people who adhere to Islam, a monotheistic religion belonging to the Abrahamic tradition. They consider the Quran, the foundational religious text of Islam, to be the verbatim word of the God of Abrah ...
cookbook originating from the thirteenth century, a layer of salt is placed on a new terracotta tile as a base and the fish is placed on top and another layer of salt is added on, then finally being placed in an oven.
The first recorded reference in China resembling the technique of baking in a salt crust is salt-baked chicken from
Dong Jing in the province of Guangdong during the
Qing Dynasty
The Qing dynasty ( ), officially the Great Qing,, was a Manchu-led imperial dynasty of China and the last orthodox dynasty in Chinese history. It emerged from the Later Jin dynasty founded by the Jianzhou Jurchens, a Tungusic-speak ...
(1644–1911). The chicken was cooked and preserved in the salt fields of the area giving them added flavour. A more recent traditionally recipe is building a cocoon of salt around the chicken protecting it from direct heat ensuring even cooking and the possibility of drying out the meat. The chicken is wrapped in a tight parcel concentrating all the natural flavours of the chicken resulting in a succulent and tender product. This can be seen as the combination of the salt crust method with the French ''en papillote'' style.
Around the world
*The salt-crusted fish has appeared in many different countries such as France, Italy, Spain and China.
*In southern Italy, fish native to the region such as bass, bream trout or snapper is traditionally baked in salt crust, using a combination of coarse salt for the base and fine salt for the top layer.
*In Thailand, salt crusted fish is cooked, stuffed with lemongrass.
*In Turkey, chicken baked in salt crust is a traditional dish from the province of Hatay, with records dating back to the Ottoman period. It is believed that the technique may have been adopted from China.
*In Colombia,
beef tenderloin is baked in a salt crust, then wrapped in a kitchen towel and baked on a top of hot coals.
Nutritional research
A study by
Sinop University
Sinop University ( tr, Sinop Üniversitesi) is a university located in Sinop, Turkey
Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a transcontinental country located mainly on the ...
in
Turkey
Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a list of transcontinental countries, transcontinental country located mainly on the Anatolia, Anatolian Peninsula in Western Asia, with ...
sought to identify the impact of a salt crust on cooking
rainbow trout
The rainbow trout (''Oncorhynchus mykiss'') is a species of trout native to cold-water tributaries of the Pacific Ocean in Asia and North America. The steelhead (sometimes called "steelhead trout") is an anadromous (sea-run) form of the coasta ...
(''Oncorhynchus mykiss''). The fish was gutted, and its stomach cavity stuffed with flavourings, before wrapping in aluminium foil to prevent the absorption of salt into the flesh. A salt crust was made from rock salt, egg white and water. The fish was covered with the salt mixture and baked at for 45 minutes, then cooled down to room temperature before being uncovered.
The results showed that moisture and carbohydrate levels decreased, while other nutritional values increased. The flavour was tested by trained professionals who concluded that the baking of the fish in a salt crust was satisfactory in terms of sensory characteristics.{{clarify, date=August 2020 Some of the panelists added more salt to the dish. Hence it can be deduced that the dish can be readily eaten by people who suffer from various illnesses like hypertension.
Bibliography
* Arhne et al. (2007) Effect of crust temperature and water content on acrylamide formation during baking of white bread: Steam and falling temperature baking. ''Food Science and Technology 40(10) 1708-1715 doi.org/10.1016/j.lwt.2007.01.010''
* Martin James (2007
"Salt-crusted Sea Bass with runner bean salad"* Dimbleby H., and Baxter J. (2015
"A Sicilian feast with salt-crusted seabass" ''The Guardian''.
References
Cooking techniques
Culinary terminology
Edible salt