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Fleur de sel

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Fleur de sel

Fleur de sel ("flower of salt" in French; French pronunciation: [flœʁ də sɛl]) or flor de sal (also "" in Portuguese, Spanish and Catalan) 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 (it was mentioned by Pliny the Elder in his book Natural History), although it was traditionally used as a purgative and salve. It is now used as a finishing salt to flavor and garnish food. The name comes from the flower-like patterns of crystals in the salt crust.[1]

Harvesting

Formation of fleur de sel in Feraoun (Algeria)

One method of gathering sea salt is to draw seawater into marsh basins or salt pans and allow the water to evaporate, leaving behind the salt that was dissolved in it. As the water evaporates, most of the salt precipitates out on the bottom of the marsh or pan (and is later collected as ordinary sea salt), but some salt crystals float on the surface of the water, forming a delicate crust of intricate pyramidal crystals. This is fleur de sel. The delicacy requires that it be harvested by hand, so this is done with traditional methods using traditional tools. In France, the workers who collect fleur de sel are called paludiers, and they employ a wooden rake called a lousse à fleur[2] to gently rake it from the water. In Portugal, a butterfly-shaped sieve called a borboleta is used instead.[3] It is then put in special boxes so that it will dry in the sun, and to avoid disturbing the flakes as it is transported for packaging. Historically, the workers who harvested fleur de sel were women, because it was believed that as the salt crystals were so delicate, they needed to be collected by "the more delicate sex."[4] Because it is scraped from the salt marsh like cream from milk, fleur de sel has been called "the cream of the salt pans."[5] It is also called "the caviar of sea salts."[6]

Fleur de sel can only be collected when it is very sunny, dry, and with slow, steady winds.[3] 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.[4] Because of this and the labor-intensive way in which it is harvested, fleur de sel is the most expensive of salts.[7]

This method of salt formation and collection results in salt crystals that are not uniform. The salt also has a much higher amount of moisture than common salt (up to 10%[8] compare to 0.5% for common salt[9]), allowing the crystals to stick together in snowflake-like forms. The moisture means that fleur de sel won't dissolve right away on your tongue, so the taste lingers. Also, since it is unrefined, it is not just sodium chloride. Other minerals, like calcium, and magnesium chloride, give it a more complex flavor. These chemicals make fleur de sel taste even saltier than salt,[10] and give it what has been described as the flavor of the sea. Trace mineral content depends upon the location at which it is harvested, so the flavor varies with point of origin.

Fleur de sel is rarely the pure white of table salt. It is often pale gray or off-white from clay from the salt marsh beds. Sometimes it has a faintly pink tinge from the presence of Dunaliella salina, a type of pink microalga commonly found in salt marshes.[11] However fleur de sel from Camargue[2] in France and Ria Formosa[5] in Portugal is white.

Uses

Only about 5% of salt is used for cooking,[12] but fleur de sel is only used to flavor food. It is not, however, used in place of salt during the cooking process. Instead, it is added just before serving, like a garnish, a "finishing salt," to boost the flavor of eggs, fish, meat, vegetables, chocolate, and caramel.[4]

Sources

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.

Europe

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, Île de Ré[13] and Camargue. (Camargue's fleur de sel is considered less desirable though, as there are nuclear reactors in that area).[1]

Difference between fleur de sel (left) and coarse salt (right) from the salterns of Guérande.

Greeks have harvested sea salt and fleur de sel (ανθος αλατιού) along the Mediterranean Sea coast, particularly the Mani Peninsula of Lakonia[14] and Missologgi, from ancient times.[15]

Flor de sal is harvested in Portugal, mostly in the Aveiro District[16] and in the Algarve,[17][18] but also in the salt marshes of Castro Marim,[19] at the mouth of the Guadiana River that forms the border to Spain. Roman ruins near Ria Formosa specifically suggest that there has been a long history of sea salt production here. Before the invention of salt mining, Portugal's sea salt production helped to solidify its place as a world power.[17] However, when mechanical salt mining made salt inexpensive, demand for Portugal's sea salt dropped due to its expense. For centuries flor de sal was scraped away and either discarded or given to workers, as its presence disturbed the evaporation that was creating the sea salt underneath.[20] The process of harvesting flor de sal for sale was reintroduced in 1997 by Necton, with a grant to develop ways to capitalize Portugal's natural resources.[5] Necton's flor de sal is whiter than the fleur de sel from Guérande, and is said to have the more robust flavor of the Atlantic as opposed to Guérande's milder Biscay Bay flavor.[21] Due to Portugal's laws regarding the grading of salt, Necton's flor de sal is exported to France and marketed by companies who also market fleur de sel.[5]

Spain also produces high quality flor de sal in the Ebro Delta on the mainland[22] and the Salinas d'Es Trenc on the island of Majorca[23] and in the Salinas de la Trinidad in the Ebro Delta.[24] Majorca has a long history of salt production, dating to the Phoenicians and the Romans,[25] but flor de sel was mostly kept for local use until Katja Wöhr arrived from Switzerland in 2002 and convinced local officials to allow her to harvest it in Es Trenc.[26] She worked with British chef Marc Fosh to develop mixtures of flor de sal with herbs and spice blends added, such as orange, lemon, black olive, lavender, rosemary, dried rose petals, curry spices, and beetroot.[27][28]

Spain's Canary Islands are also a source of flor de sal. Saltworks have operated on La Palma and Lanzarote for centuries,[29] 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.[30]

Americas

Canada now produces high quality fleur de sel from the Pacific Ocean off Vancouver Island.[31] The colder climate adds extra crunch and reduces the flakiness. Unlike traditional European fleur de sel, which crystallizes naturally in the sun, Canadian fleur de sel makers heat their seawater to force evaporation.[32]

Mexico has produced both sea salt and flor de sal since Aztec times from the Lagoon of Cuyutlán on the Pacific Coast. There is also a museum in Cuyutlán, dedicated to the history and technique of flor de sal production.[33]

Flor de sal is also harvested along the beaches of Celestun in Yucatan, Mexico where Mayans cultivated salt 1,500 years ago for its distribution throughout Mesoamerican trade routes extending to Guatemala, Central America and the Caribbean.[34]

Brazil started producing flor de sal in 2008 in the traditional salt-producing area of Macau, in the state of Rio Grande do Norte,[35] the main company is ArtSal - Flor De Sal,[36] but it is iodized, as required by the Brazilian law for all salt intended for human consumption, but for export iodine is not added.[6]

Mineral composition

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:[19]

Mineral Quantity
Sodium chloride 97% (in dry matter)
Moisture 6.5%
Calcium 0.1%
Magnesium 0.4%
Potassium 0.2%
Iron 5 mg/kg
Insolubles < 0.02%

See also

References

  1. ^ a b Green, Denzil. "Fleur de Sel". Cook's Info. Retrieved 30 July 2016.
  2. ^ a b "Fleur de Sel: The Hand-Picked Salt". Sous Chef. Speciality Cooking Supplies Limited. 6 March 2014. Retrieved 30 July 2016.
  3. ^ a b "Artisan salt production". Marisol. Retrieved 11 August 2016.
  4. ^ a b c Lebovitz, David (5 September 2006). "Fleur de Sel". Living the Sweet Life in Paris. Retrieved 30 July 2016.
  5. ^ a b c d "The Cream of the Salt Pan". The Atlantic. The Atlantic Monthly Group. March 2002. Retrieved 30 July 2016.
  6. ^ a b Orenstein, José (14 November 2012). "É sol, é sal, é flor de sal". O Estado de S. Paulo ("Estadão") (in Portuguese). Retrieved 15 November 2012.
  7. ^ Alfaro, Danilo. "What is Fleur de Sel". About Food. About.com. Retrieved 30 July 2016.
  8. ^ Bitterman, Mark (2010). Salted: A Manifesto on the World's Most Essential Mineral, With Recipes. Ten Speed Press. p. 75. ISBN 978-1-58008-262-4.
  9. ^ "Salt". Transport Information Service. Gesamtverband der Deutschen Versicherungswirtschaft. Retrieved 30 July 2016.
  10. ^ McGee, Harold. "Curious Cook in the New York Times: The tastes of salts". Curious Cook. Retrieved 30 July 2016.
  11. ^ O'Connell, Ryan (11 August 2011). "Helicopter over Corbieres and La Clape". Love that Languedoc. Retrieved 30 July 2016.
  12. ^ "Production and Industry". Salt. The Salt Institute. Retrieved 30 July 2016.
  13. ^ "La Culture du Sel". Esprit du Sel (in French). Retrieved 30 July 2016.
  14. ^ "Fleur de Sel". Arogos. Retrieved 30 July 2016.
  15. ^ "Fleur de Sel from the Marches of Mesologgi". Retrieved 30 July 2016.
  16. ^ "Sal de Aveiro - História". D'Aveiro (in Portuguese). Retrieved 11 August 2016.
  17. ^ a b "Flor de Sal do Algarve". Fleur de Sel. Retrieved 11 August 2016.
  18. ^ Hoesen, Marianne (15 July 2015). "Flor De Sal - The Best Salt of the Algarve". Everybody Loves Portugal. Retrieved 11 August 2016.
  19. ^ a b "Flor de Sal - truly natural salt flakes". Marisol. Retrieved 11 August 2016.
  20. ^ DelGado, Mia (19 May 2016). "Precious Flor de Sal". Taste Portugal:London. Retrieved 11 August 2016.
  21. ^ Steenberg, Axel and Sophie. "Natural Sea Salt". Axel and Sophie Steenberg's Blog. Retrieved 30 July 2016.
  22. ^ Edwards, Jan (16 November 2013). "A Gift from the Mediterranean". Eat, drink, sleep, Mallorca. Retrieved 11 August 2016.
  23. ^ "Historia". Flor de Sal D'es Trenc (in Spanish). Retrieved 30 July 2016.
  24. ^ "Flor de Sal". Flor del Delta (in Spanish). Retrieved 30 July 2016.
  25. ^ de Felipe, Eduardo (1 October 2015). "Flor de Sal and the Salterns of Es Trenc". Holafoodie. Retrieved 11 August 2016.
  26. ^ Kroiss, Roland. "Flor de Sal d'es trenc". abcMallorca. Retrieved 11 August 2016.
  27. ^ von Oheimb, Eva. "Flor de Sal - the island's precious salt". Mallorquisimo. Retrieved 11 August 2016.
  28. ^ "Flor de Sal das Aroma des Mittelmeers". Mallorca (in German). Mallorca Agroturismo. Retrieved 11 August 2016.
  29. ^ García Fernández, Rodrigo. "A Harvest of Salt from the Canaries". Food & Wines from Spain. Retrieved 11 August 2016.
  30. ^ Sánchez Segura, Santiago. "Spanish Salt: White Gold Fever". Foods & Wines from Spain. Retrieved 11 August 2016.
  31. ^ "Canada's First Sea Salt Harvestry". Vancouver Island Salt Co. Retrieved 30 July 2016.
  32. ^ Greer, Susan (25 November 2014). "Cold water makes natural Canadian sea salt unique: very white and clean". The Canadian Press. Retrieved 11 August 2016.
  33. ^ Chávez, Luis Rosales (30 March 2015). "Museo de la Sal, un atractivo turístico en Cuyutlán". Colimanoticias. Retrieved 30 July 2016.
  34. ^ Medellin, Carolina (Winter 2011–2012). "Spice of Life: Celestún's Superb, Sustainable Salts" (PDF). Catherwood Travels. Haciendas del Mundo Maya. p. 5. Archived from the original (PDF) on 2 December 2013. Retrieved 30 July 2016. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  35. ^ "Brazil's Own Fleur du Sel - Flor de Sal". Flavors of Brazil. 12 December 2012. Retrieved 11 August 2016.
  36. ^ Rodrigues, R.M.; Junior (September 2008). "ArtSal Flor De Sal - Company producing the legitimate Flower of salt in Brazil since 2008". ArtSal - Flor De Sal (fleur de sel). 1 (1): 1–10.
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