Flower of Salt with Port Wine - Salt Shaker included (hand-painted tagine). Fleur de Sel (Flower of Salt) is an extremely fine layer of salt crystals that forms on the surface of seawater. It is hand-harvested on a daily basis using a special tool which never touches the bottom of the salt marsh, a process that ensures the salt maintains its original brilliant white colour. It is a natural products that retains the taste and moistness of the sea.