Tanzania salt pans, with briny water (foreground) and piles of salt (background). These salts pans are among several in and around the port of Bagamoyo on Tanzania's Indian Ocean coast. Tanzania is a major producer of salt in Africa, with tens of thousands of tons of salt produced annually. Salt producers range from large industrial operations to small, manual operations where the salt bags are filled by hand. In coastal areas, water is piped in from the sea to large evaporating pools. Regulations require this salt to have iodine added to overcome iodine deficiency disease (IDD).