Fleur de sel ("flower of salt" in French; French pronunciation: [flœʁ də sɛl]), flôr de sal (in Portuguese), or flor de sal (inSpanish and Catalan) is a hand-harvested sea salt collected by workers who scrape only the top layer of salt before it sinks to the bottom of large salt pans.[1] 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[2] and Camargue. Flôr de sal also has a large production in Portugal,[3] mostly in the Aveiro District and in the Algarve, being commercialized worldwide from the ancient salt production regions existing in this country, by traditional methods, with high certified quality standards. It is an artisanal food product. Due to its relative scarcity and its labor-intensive production, flôr de sal (flower of salt/fleur de sel) is one of the most expensive salts.