Salt works and salt harvesting
For centuries, the Northern Adriatic salt-pans exerted a great impact on the economy of states and city-states of this region. They were often the subject of political disputes and wars, for due to its applicability salt was a valuable raw material and a strategic commodity, important for the canning of food and for the production of gunpowder.
About one fifth of all basins are crystallisation basins, in which salt is finally made, once seawater has travelled there through evaporation basins, evaporating gradually. In crystallisation basins, the petola is cultivated (a few mm thick layer of algae, gypsum and minerals), which prevents the mud mixing with salt.
During salt-making, the salters use some very traditional tools. Salt is raked with special scrapers in large heaps. The strained salt is stored in special warehouses.