Dissolving underground salt and pumping the brine to the surface
The salt used in this process is extracted from the rock salt layer at depths of as much as 400 meters by pumping down water and forcing out the resulting brine. This concentrated salt solution is piped to the collection tank and from here it is transported to the saltworks for softening and for undergoing the crystallisation process in the evaporator plant.
This method yields a very high purity of salt which can be excellent for chemical applications.
Solution mined salt represents 60% of the salt produced in Europe and the main producers are located in Germany, the Netherlands, the United Kingdom, Poland and Switzerland.