The harvesting of Flor del Delta flower of salt is carried out in a completely manual way according to the traditional system of the French paludiers and the Portuguese marnotos.

The fragile crystals are collected daily with traditional utensils, the most important of which is the wooden pole called a lousse which has a screen at its bottom end to collect the flower of salt which is deposited on the pan surface.

Flower of salt is the name received only by the thin layer of salt which is hand-harvested from the surface of the traditional salt pans, which are built especially for its production. What precipitates to the bottom is what is known as traditional salt.