Grey Sea Salt from Guérande Peninsula<1> (France)

About Salt

Grey sea salt products with the "Le Paludier" brand name are referred to as Guérande salt because the production process takes place on the sheltered shoreline of the Guérande Peninsula.<2>

"Le Paludier" products are as clean as nature can make them: the production process needs no fertiliser, no pesticides and no artificial ingredients. The finished products are packaged according to macrobiology norms. In other words, the salt is as clean and tasty as it can be.

Most products with the “Le Paludier” brand name have received the “Nature et Progrès” Certificate—an endorsement by the premier European organisation for organic agriculture.

The Saltpan (Guérande Grey Sea Salt)

Natural Grey Clay Salt Marsh Ponds. Workers who produce salt in the coastal lowlands of the Guérande Peninsula are called paludier<3> — literally a person who works in the salt marshes<4> of the Guérande Peninsula<5>.  “Le Paludier” brand grey sea salt is all natural. It is made in the summer months—June to September—in saltpans dug into the flat, expansive salt marshes. On the rising tide the paludier allow fresh sea water to flow into the saltpan through canals (Fr. “Etier”) made for this purpose. Weirs with wooden blocks start and stop the flow. These salt pans, which occupy thousands of acres<3>, are made and maintained by the paludier. The making of grey sea salt involves a two step process: the paludier allow fresh sea water to flow into basins dug in the grey clay mud flats (Fr. “Vasière”). Second: Brine formed in the grey clay mud flats is allowed to flow (decanted) into the salt-field (Fr. “Saline”). The salt-field is a network of ponds dug in the native coastal marine clay.

Brine-Making Stage. The brine making network consists of two types of pond dug in the natural grey clay substrate: (a) large basins (Fr. “adernes” or “muants”) and others (Fr. “aires,” “suillets” or “tables salantes”). These latter are graduated in size, becoming ever smaller and more shallow as the evaporation process reduces the initial volume of sea water<2>. At each stage in this system of graduated ponds the sea salt becomes increasingly concentrated. And the ponds have been carefully engineered such that the concentrated brine can flow by gravity from one to the next.

Salt-Making Stage. Summer Sun heats the sea water, and warm winds speed the evaporation process. As the concentration of sea salt increases, the sea water becomes a brine.  The most concentrated brine is decanted into the smallest shallowest saltpans (Fr. “Oeillets”), where the salt solution becomes super-saturated. Here crystalline salt is harvested. There are two crystallization pathways which yield two different types of salt crystal: (a) Coarse grey sea salt; and (b) filigree crystals referred to as “flowers of sea salt” (Fr. Fleur de Sel)<6>. 

Coarse Grey Sea Salt. Most of the salt in the brine crystallizes onto the grey clay bed that lines the pond.  These grey sea salt crystals, which take about a fortnight to form under water, are harvested a couple of times a month from June to September. The paludier gently rake this harvest—grey sea salt—into mounds beside the ponds, being careful to avoid stirring up the clay that lines the pond bed. Minute quantities of grey clay are incorporated into the salt granules, and for this reason the product is a light grey color. These mounds of grey sea salt are situated where excess brine can drain away, back into the brine pond. After this finishing stage the coarse grey sea salt—which remains slightly damp, and grey-tinted from the clay—is ready to be packaged and sold.  Some of the coarse salt is ground before packaging to make a product with finer granularity (fine-grained grey sea salt).  Many gourmets who keep coarse grey sea salt on hand, grind it in a salt grinder when they need a finer textured salt, though they have the option to use the pre-ground product when this suits their needs.

Flower of Sea Salt (Fr. Fleur de Sel). Crystals of sea salt form on the surface of the salt pans by the combined action of Sun and wind. These salt crystals are delicate, pure white, and very fine textured.  Daily harvest from each salt pan yields only a few kilograms of salt.  But, Fleur de Sel’s delicate texture—prized by gourmets—and the modest annual production figures keep this product in high demand.

Grey Sea Salt Harvest: Details. From June to September, the paludier harvest two kinds of grey sea salt: (a) coarse salt which forms on the bottom of the grey clay salt pan, harvested with a wide wooden rake (Fr. “las") and stockpiled on a small round staging area (Fr. “ladure”); and (b) flower of salt (Fr. "Fleur de Sel") which consists of small white crystals that form on the surface of the water, also harvested with a wooden tool.

The Producer of Grey Sea Salt. Grey sea salt with the brand name “Le Paludier” is produced by the Bourdic Company (Le Société Bourdic) owned by family of salt makers who cherish and use “traditional” methods. These methods ensure that (a) the salt is sun-dried, and (b) the salt never comes into contact with metal, a potential source of contamination. Historically, Roman salt making techniques involved boiling brine in metal lined containers<7>. The traditions of Guérande, by contrast, are completely natural. 

The Bourdic Society: Details. Le Société Bourdic, producer of La Paludier salt brand, has fewer than a dozen employees. Its packaging facility is situated in the picturesque village of Batz-sur-Mer, in the Guérande peninsula (France). The Bourdic Company operates somewhat like a cooperative: it distributes grey seal salt (Fr. “Le Sel Cours and Le Sel Fin) and flower of salt (Fr. Fleur de Sel) produced by 60 harvesters. Products of The Bourdic Society are made by people who know, understand and adhere to local traditions. These products are distributed in France and the European Community. Increasingly grey sea salt is exported all over the world, chiefly to North America and Asia.

The Bourdic Company. Here’s what the producer—Le Société Bourdic—says about its own products: grey sea salt (coarse and fine granule); and flower of salt—“Fleur de Sel”:

(1) Coarse Grey Sea Salt & Fine Grey Sea Salt (Fr. Le Sel Gros et Le Sel Fin Nature)

(a) Coarse Grey Sea Salt: Coarse Guérande Salt is a natural product particularly rich in magnesium.

(b) Fine Grey Sea Salt: Details. The Bourdic Company (Le Société Bourdic) launched the first fine grey sea salt—dried and crushed coarse grey sea salt—on the dietetic market in 1975. Since this date, gourmets everywhere have sought out this fine product of the Guérande peninsula.

(c) Fleur de Sel: The Bourdic Society’s salt product, “flower of the sea”—poetically referred to as “Fruit of the ocean, Sun and wind”; or, in French, “Fleur de Sel de Guérande”—is simply natural sea water dried by sunshine. Delicate, filigree crystals of sea salt form on the surface of the brine by the drying action of the Sun and wind. These crystals are skilfully gathered up by workers (Fr. “Les palludier”) using a simple wooden tool and a gentle raking technique. Many gourmet cooks use this kind of sea salt to enhance the flavour of raw vegetables, salads, and grilled meat. Used in this way Fleur de Sel has subtle texture but no distracting crunch—just pure, enjoyable flavour.

Brittany and Region. Many of our readers might wish to see more of the Guérande Peninsula. An excellent starting point is the website Brittany.com<8> which has a photo gallery of the region, including pictures of paludier women, dressed in traditional clothing and carrying containers of salt on their heads.

Biblical History. References to salt in the Bible are numerous—two dozen or more—and each use has cultural or spiritual significance. Perhaps the most relevant cultural reference relates to salt as “salary” for Roman soldiers. In Biblical times salt was a valued commodity, and source of tax revenue to the Roman Empire. Today it remains a necessary part of a healthy diet. Unlike manufactured salt, Grey Sea Salt of Guérande is a natural source of dietary iodine and is rich in minerals, especially magnesium.

Celtic Sea Salt. Many Britons emigrated to the northwest of France in the 5th Century BC. Patterns of immigration to Brittany (literally Little Briton) are eclectic and include Scotland, Wales, Ireland, Isle of Mann, Galicia (Spain) and Cornwall.  The term Celtic relates to a culture and a history shared among various parts of Europe, and especially Northwestern France. References to Celtic Salt and Celtic Sea Salt correspond to references to Grey Sea Salt of Guérande. Both come from a common source: the extensive salt marshes of Guérande Peninsula; however Grey Sea Salt of Guérande and Fleur de Sel Paludier are among the special minority that have received the “Nature et Progrès” Certificate—a certificate of purity earned by virtue of the paludier’s use of traditional methods, tools and materials.

References:

The text above has been compiled from the most authoritative sources available, all of which are referenced below:

(1) Guérande, formerly part of Brittany. People of the Guérande Peninsula still fly the flag of Brittany and hold onto many of the Celtic traditions of the region. The name Guérande derives from the Breton language and means "White Land" - a reference to the salt trade upon which the town was founded. [ http://www.pvf.dircon.co.uk/BCH-7B(LoireAtlantique).html ]

(2) Société Bourdic: lepaludier.com;

(3) Kurlanski, Mark. 2002. Salt: A World History. Knopp Canada. www.saltbook.com. Various pages referenced by indexed key words.

(4) paludier: « personne qui travaille aux marais salants »; source: http://perso.wanadoo.fr/groupejarc/surfer/lexique.htm#paléolithique

(5) Guérande. [ http://www.pvf.dircon.co.uk/BCH-7B(LoireAtlantique).html ] The name Guérande derives from the Breton language and means "White Land"—a reference to the salt trade upon which the town was founded.

(6) Fleur de Sel. [Fr. "flower of the salt."]—A white sea salt harvested by hand in Guérande (formerly part of Brittany), France and available only in limited quantities. Composed of the natural crystal formations found on the surface of a salt marsh. The crystals are sun-dried only, thereby maintaining many of the nutrients not found in typical prepared salts. Fleur de Sel's unrefined nature lends itself to be served as a condiment, rather than a seasoning, adding both texture and flavor to a meal. www.recipegoldmine.com/glossary/glossaryF.html

(7) Jeremy Greenwood The New Wall saltworks, Apuldram. http://www.hants.gov.uk/newforesthistory/apuldram.htm

(8) Brittany website: http://www.brittany-bretagne.com/pg/guerande.htm