Washing units use a less saturated salt brine to remove impurities and excess sulphate and magnesia from the raw salt. The abundance of the wash water as well as the path taken by the raw salt are the key factors to quality treatment.
The salt is thus conveyed by various mechanisms including mechanical moving parts and separating baffles while being continuously immersed in the wash brine. At the end of this washing process, the salt is sprayed with fresh water for a final clearing before spinning.
The content of Sodium Chloride (NaCl) is best achieved through the washing process and gives the salt the required purity and quality. The washed salt can be distinguished by its bright white colour.