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Maldon Crystal Salt Company Limited, [1] trading as Maldon Salt, is a salt-producing company in Maldon on the high-salinity banks of the River Blackwater in Essex, England. The river is favoured by flat tide-washed salt marshes and low rainfall.
Sea salt production in the coastal town of Maldon dates back to the time of Roman Britain when clay-lined salt evaporation ponds were constructed, and according to the Domesday Book, 45 lead pans were used to manufacture salt there in 1086. [2]
The Maldon Salt Company was founded under its current name in 1882, having previously been part of a local coal firm. [3] In the 1990s and early 2000s, Maldon's salt grew in popularity after being used by prominent chefs including Ruth Rogers, Delia Smith, and Jamie Oliver. [4]
Maldon Sea Salt is made on a large scale by evaporating brine over an elaborate network of modern gas fired brick flues. At one time crystal drying was by woodburning stove and later by industrial oven before the use of a Rube Goldbergian oscillator was introduced. In 2017 it was said that inverted pyramid-shaped crystals prevented the salt from caking, and the resulting flakes from their breakdown were used as a finishing salt. [4]
The company claims that the salt's low magnesium content means it has less of a bitter aftertaste than other salts. [4] Salt gained from evaporating sea water has a higher magnesium ion content than some table salts. [5]
Magnesium is a chemical element; it has symbol Mg and atomic number 12. It is a shiny gray metal having a low density, low melting point and high chemical reactivity. Like the other alkaline earth metals it occurs naturally only in combination with other elements and it almost always has an oxidation state of +2. It reacts readily with air to form a thin passivation coating of magnesium oxide that inhibits further corrosion of the metal. The free metal burns with a brilliant-white light. The metal is obtained mainly by electrolysis of magnesium salts obtained from brine. It is less dense than aluminium and is used primarily as a component in strong and lightweight alloys that contain aluminium.
In chemistry, a salt or ionic compound is a chemical compound consisting of an ionic assembly of positively charged cations and negatively charged anions, which results in a neutral compound with no net electric charge. The constituent ions are held together by electrostatic forces termed ionic bonds.
Brine is water with a high-concentration solution of salt. In diverse contexts, brine may refer to the salt solutions ranging from about 3.5% up to about 26%. Brine forms naturally due to evaporation of ground saline water but it is also generated in the mining of sodium chloride. Brine is used for food processing and cooking, for de-icing of roads and other structures, and in a number of technological processes. It is also a by-product of many industrial processes, such as desalination, so it requires wastewater treatment for proper disposal or further utilization.
An evaporite is a water-soluble sedimentary mineral deposit that results from concentration and crystallization by evaporation from an aqueous solution. There are two types of evaporite deposits: marine, which can also be described as ocean deposits, and non-marine, which are found in standing bodies of water such as lakes. Evaporites are considered sedimentary rocks and are formed by chemical sediments.
Sea salt is salt that is produced by the evaporation of seawater. It is used as a seasoning in foods, cooking, cosmetics and for preserving food. It is also called bay salt, solar salt, or simply salt. Like mined rock salt, production of sea salt has been dated to prehistoric times.
Magnesium sulfate or magnesium sulphate is a chemical compound, a salt with the formula MgSO4, consisting of magnesium cations Mg2+ (20.19% by mass) and sulfate anions SO2−4. It is a white crystalline solid, soluble in water but not in ethanol.
Magnesium chloride is an inorganic compound with the formula MgCl2. It forms hydrates MgCl2·nH2O, where n can range from 1 to 12. These salts are colorless or white solids that are highly soluble in water. These compounds and their solutions, both of which occur in nature, have a variety of practical uses. Anhydrous magnesium chloride is the principal precursor to magnesium metal, which is produced on a large scale. Hydrated magnesium chloride is the form most readily available.
Epsomite, Epsom salt, or magnesium sulfate heptahydrate, is a hydrous magnesium sulfate mineral with formula MgSO4·7H2O.
The River Blackwater is a river in Essex, England. It rises as the River Pant in the northwest of the county, just east of Saffron Walden, and flows in a generally southeast direction to Bocking, near Braintree, via Great Sampford and Great Bardfield. At Bocking, it becomes the River Blackwater, and veers east to flow past Bradwell Juxta Coggeshall and Coggeshall. It then veers south, flowing past Kelvedon and Witham, before reaching Maldon. There, it veers east again and empties into the Blackwater Estuary, which in turn meets the North Sea at Mersea Island.
Salt, also referred to as table salt or by its chemical formula NaCl, is an ionic compound made of sodium and chloride ions. All life depends on its chemical properties to survive. It has been used by humans for thousands of years, from food preservation to seasoning. Salt's ability to preserve food was a founding contributor to the development of civilization. It helped eliminate dependence on seasonal availability of food, and made it possible to transport food over large distances. However, salt was often difficult to obtain, so it was a highly valued trade item, and was considered a form of currency by certain people. Many salt roads, such as the Via Salaria in Italy, had been established by the Bronze Age.
In common usage, salt is a mineral composed primarily of sodium chloride (NaCl). When used in food, especially in granulated form, it is more formally called table salt. In the form of a natural crystalline mineral, salt is also known as rock salt or halite. Salt is essential for life in general, and saltiness is one of the basic human tastes. Salt is one of the oldest and most ubiquitous food seasonings, and is known to uniformly improve the taste perception of food, including otherwise unpalatable food. Salting, brining, and pickling are also ancient and important methods of food preservation.
Fleur de sel or flor de sal is a salt that forms as a thin, delicate crust on the surface of seawater as it evaporates. Fleur de sel has been collected since ancient times, and was traditionally used as a purgative and salve. It is now used as a finishing salt to flavor and garnish food. The origin of the name is uncertain, but is perfectly in line with both meanings of fleur: the surface of something and its best part; the fact the salt crust also might form flower-like patterns of crystals might be of influence.
Carnallite (also carnalite) is an evaporite mineral, a hydrated potassium magnesium chloride with formula KCl.MgCl2·6(H2O). It is variably colored yellow to white, reddish, and sometimes colorless or blue. It is usually massive to fibrous with rare pseudohexagonal orthorhombic crystals. The mineral is deliquescent (absorbs moisture from the surrounding air) and specimens must be stored in an airtight container.
Red Hill is an archaeological term in Britain for a small mound with a reddish colour found in the coastal and tidal river areas of East Anglia and Essex. Red Hills are formed as a result of generations of salt making, deriving their colour from the rubble of clay structures used in the salt-making process that have been scorched red by fires used to evaporate sea water to make salt cakes. They date from the Bronze Age, Iron Age and into the Roman period.
Bittern, or nigari, is the salt solution formed when halite precipitates from seawater or brines. Bitterns contain magnesium, calcium, and potassium ions as well as chloride, sulfate, iodide, and other ions.
The Dead Sea Works is an Israeli potash plant in Sdom, on the Dead Sea coast of Israel.
Tamarix aphylla is the largest known species of Tamarix, with heights up to 18 metres (59 ft). The species has a variety of common names, including Athel tamarisk, Athel tree, and Athel pine. It is an evergreen tree, native across North, East, and Central Africa, through the Middle East, and into parts of Western and Southern Asia.
Flake salt refers to a category of salt characterized by their dry, plate-like ("lamellose") crystals. Their structure is a result of differing growth rates between the faces and edges of the crystal, an effect that can be achieved in various ways. Flake salt may occur naturally but can also be produced by a variety of methods, including boiling brine over metal salt pans or evaporating it in greenhouse solar evaporators. The technologies used as well as atmospheric conditions can yield varying crystal structures. Flake salts can form as irregular shavings, pyramidal shapes, boxes, or potato chip-like laminated crystals. These salts tend to have lower trace mineral content than other salts, giving them a stronger salty taste. Most form as thin, flattened out crystals with a large surface area and low mass that give them a crunchy texture and relatively fast dissolution rate. Because of the salts' delicate structures, selmeliers tend to use them as finishing salts.
Cerium nitrate refers to a family of nitrates of cerium in the +3 or +4 oxidation state. Often these compounds contain water, hydroxide, or hydronium ions in addition to cerium and nitrate. Double nitrates of cerium also exist.
Dairy salt is a culinary salt product used in the preparation of butter and cheese products that serves to add flavor and act as a food preservative. Dairy salt can vary in terms of quality and purity, with purer varieties being the most desirable for use in foods. Dairy salt has been used since at least the 1890s in England and the United States. In butter preparation, it serves to retain moisture, while in cheeses, it tends to reduce water content and slow the ripening process.
51°43′19″N0°39′54″E / 51.722°N 0.665°E
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