Explore the ancient salt harvesting traditions of Île de Ré. Learn how this sustainable "white gold" is produced using natural evaporation and Gallo-Roman methods.

The salt workers aren't making the salt; they’re just creating the perfect conditions for the Atlantic to make it for them, using a thousand-year-old hydraulic machine that relies entirely on the natural energy of the sun and the wind.
Visiting ile de ré in the vendee I saw some salt production. Please describe how it works. I've never understood how they manage to get the salt so pure.






The term "White Gold" refers to the high-quality salt produced in the marshes of Île de Ré. This natural product is harvested using a highly sophisticated system designed to capture the ocean's resources. The salt is famous for its purity and is often seen piled into traditional white pyramids across the landscape, representing a thousand-year-old tradition that remains a vital part of the island's identity and economy.
Salt harvesting on Île de Ré relies on a natural evaporation process driven by the energy of the sun and the wind. The method involves directing seawater through a series of shallow pools in a slow journey that allows nature to do the heavy lifting. This sustainable production method has remained essentially unchanged since the Gallo-Roman period, avoiding the need for modern chemicals or sterile factory filters to achieve a pure final product.
The production is considered one of the most sustainable methods ever devised because it functions as a massive open-air laboratory powered entirely by natural elements. By utilizing the sun and wind for evaporation rather than industrial machinery, the process was "green" long before the concept existed. This ancient technology respects the environment of the French salt marshes while producing high-quality salt through traditional, low-impact manual labor.
The core technology and traditions used in the salt marshes of Île de Ré date back nearly two thousand years to the Gallo-Roman period. Despite the modern world changing significantly, the methods for managing the water and creating the salt pyramids have been preserved for centuries. This long-standing history makes the island a unique site where ancient maritime engineering and traditional craftsmanship continue to thrive in the present day.
Creado por exalumnos de la Universidad de Columbia en San Francisco
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Creado por exalumnos de la Universidad de Columbia en San Francisco
