With natural evaporation: The most common salt production technique is evaporating the salty water in open-air salinas. Evaporation can be effective in hot and dry areas. Sea salt, lake salt and salty spring salt can be produced by naturally evaporating.
Usually after evaporation takes place, the salt is collected by heavy machines, by scratching the salt from the ground.
Rock salt can be obtained from the galeries made by exploding.