About half of the remaining megalithic monuments of the Département Loire-Atlantique, is located on the Peninsula, which makes it an important area for Prehistory. It is now known that these structures date from around 5200–2200 BC. Because it is harvested naturally from the sea and is usually not refined, fleur de sel has more mineral complexity than common table salt. The following is a chemical analysis of Flos Salis, a flor de sal by Portuguese company Marisol: [22] Mineral When a salt crystallises over a long period of time, it becomes hard and pure. When the crystallisation is recent, the grain is crumbly, porous and moist. The other elements contained in the moisture are trapped when it dries. Sel de Guérande’ is a grey sea salt consisting of salt crystals which form on the natural clay base of

Sea salt has been gathered around the world for millennia, but over the last thousand years, fleur de sel was only harvested in France. Elsewhere it was collected and discarded. As the market for specialty salts has grown, companies have begun to harvest fleur de sel for export wherever the geographic and meteorological conditions are favorable. Traditional French fleur de sel is collected off the coast of Brittany, most notably in the town of Guérande (called Fleur de Sel de Guérande), but also in Noirmoutier, and Île de Ré. [16] Difference between fleur de sel (left) and coarse salt (right) from the salterns of Guérande. Historia". Flor de Sal D'es Trenc (in Spanish). Archived from the original on 29 July 2019 . Retrieved 30 July 2016. Unlike refined industrial salts, Guérande Salt does not undergo any form of washing or chemical treatment, and nothing is added (anti-caking agent, flow improvement agent, fluorine, iodine or nitrite).All of Guérande Salts that we sell are organic sea salts - 100% natural. Table salt must include these two characteristics to excite the flavours of food on the tongue. Taste comes via the taste buds, but if you eat a salt which does not melt, or is hard, it won’t have a taste effect. TRADYSEL fine salt is suitable for this use.The salt is obtained by sun and wind evaporation and it is neither filtered nor cleaned thus it is free of pollutants from mechanical and chemical processes. Populations légales 2020". The National Institute of Statistics and Economic Studies. 29 December 2022. Ref 5th volume: Y Historia genealógica y heráldica de la monarquía española1 de D. Francisco Fernandez de Béthencourt, 1904 dedicated to the title of Medina Celi Salt forms part of many religious ceremonies and is a sign of hospitality when it is placed on the table. Spain's Canary Islands are also a source of flor de sal. Saltworks have operated on La Palma and Lanzarote for centuries, [32] but the flor de sal that resulted was kept for the use of the workers until 2007, when the salt gained gourmet status. The culinary rediscovery of fleur de sel and other gourmet salts has saved small scale artisanal saltworks in the Canaries, which were in rapid decline. [33] Americas [ edit ]

In the salt marshes, the salt’s composition varies with the brine’s composition. The mother waters, in the dead end where the salt crystallises, change over the season, as the concentration of different cations increases up to saturation. At the end of good seasons, magnesium can be crystallised for example. Since then the production techniques of coarse sea salt and salt flowers have been improved but the particularity of the Sel de Guérande is that it is still made by salt workers respecting the authentic expertise and know-how. Coarse Sea Salt from Guérande Notre-Dame la Blanche Church. Listed building in 1910. Built in Gothic style in the 14th century under Jean de Montfort, is the oldest building in the medieval city.Production and Industry". Salt. The Salt Institute. Archived from the original on 16 May 2021 . Retrieved 30 July 2016. The salt is obtained by sun and wind evaporation and it is neither filtered nor cleaned thus it is free of pollutants from mechanical and chemical processes. The sea salt hasn't even been dried. Therefore, it is still naturally moist . Fleur de sel can be collected only when it is very sunny, dry, and with slow, steady winds. [6] Because of the nature of its formation, fleur de sel is produced in small quantities. At Guérande, France, each salt marsh produces only about one kilo (2.2 pounds) per day. [7] Because of this and the labor-intensive way in which it is harvested, fleur de sel is the most expensive of salts. [10]

According to the classification established by the INSEE in 1999, Guérande is now classified as an urban district, 1 out of 9 forming the urban area of Saint-Nazaire.During the 17th and 18th centuries, the city was transformed, with bourgeois houses in granite replacing the houses of the 15th and 16th centuries. In 1686, at the Saint-Aubin public place, a new building was built called Les Halles; which was notable for its large auditorium. These mansions and houses represent about 50% of the buildings still visible today in the sector called the intra muros.