In the salt marshes of Cadiz in southwestern Spain, Juan Carlos Sanchez de Lamadrid surveyed a grid of rectangular pools of milky water, part of a time-honored tradition to harvest salt from the sea.
Civilizations as old as the Phoenicians who ruled the Mediterranean from about 1,200 BC have taken advantage of the constant and strong winds that blow from North Africa, facilitating the evaporation of seawater to produce salt in the region.
“This is the perfect place for salt marshes. It’s windy, there is lots of sunshine ... you have everything you need,” said De Lamadrid, wearing a straw hat to protect himself from the blazing sun.
Photo: AFP
The 56-year-old, originally from Seville, is part of a small but dynamic group of artisans trying to keep the tradition of sea salt harvesting alive.
The sector flourished in this sunny region for centuries, with salt from Cadiz exported to the Americas, until the invention of refrigeration drastically reduced the need for salt to conserve foods.
Of the 160 sea salt producers that existed at the beginning of the 20th century, only four are still operating.
After a long career as a photographer and drawn by the beauty of the salt marsh landscapes, De Lamadrid set up shop in the region in 2020, becoming a sea salt harvester alongside his wife and two employees.
“We had to learn everything, we were starting from zero,” he said, adding that he learned the techniques from one of the few veteran harvesters who are still active.
He said he also spent time in Portugal and France “to discover other techniques.”
Last year they produced 30 tonnes of virgin sea salt and three tonnes of fleur de sel — or “flower of salt” — large salt crystals used to garnish and season everything from fish, meat and vegetables to desserts and baked goods.
HARVESTING BY HAND
To harvest the salt, sea water from the Atlantic is flushed into a network of reservoirs built in the salt marshes and is then allowed to evaporate.
When the salt in the water reaches the right concentration, it forms white crystals that workers then rake into small white heaps.
“We harvest everything by hand in the traditional way,” De Lamadrid said.
When salt demand fell with the advent of refrigeration, Cadiz “didn’t know how to adapt,” unlike places such as Guerande in northwestern France which started selling fleur de sel and other products, said Juan Martin, president of Salarte, a non-profit that works to revive the sea salt industry.
Since it was founded in 2012, Salarte has refurbished 250 hectares of salt flats using private financing.
“Some salt marshes were in a really poor state,” said Martin, a marine biologist.
He said that places such as the Bay of Cadiz are not valued enough for their ecological importance.
“It’s a shame because the marshes are real treasures” not only as a source of economic activity, but also for their extraordinary biodiversity, Martin said, using binoculars to watch migrating birds feeding at a recently restored salt flat.
NATURAL PANTRY
The revival of the salt industry is one of a string of initiatives over the past decade, from ecotourism to the cultivation of oysters, samphire and locally produced cosmetics, to breathe new life into the salt marshes which are part of a 10,500 hectare natural park.
The marshes — home to sea beam, shrimp and clams — are “an extraordinary pantry,” said chef Angel Leon, whose restaurant Aponiente, which is in a 19th-century tide mill and holds three Michelin stars, serves up dishes based on such ingredients and uses the local sea salt.
“Salt is something we use every day, but which we don’t fully appreciate,” the 46-year-old said.
Artisanal sea salt has a texture and taste which is “nothing like” industrial salt, he said.
“The problem is that we don’t pay it enough attention,” he said, adding that he hoped Cadiz sea salt would soon find its way into top restaurants around the world.
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