Natural French grey sea salt from Guérande. True Sel De Guérande coarse salt is produced on the salt marshes of the peninsula of Guérande, located in the Celtic region of Brittany. This salt is unwashed and keeps its minerals and trace elements from sea water. The salt is made through the natural evaporation of sea water under the combined effect of the sun and the wind. Harvested by hand by the salt workers, according to an ancestral process this pure sea salt remains unwashed preserving its connection with the ocean