Tag: Salt impurities

Globally, rock salt deposits vary in purity, with analyses showing sodium chloride content typically ranging from 90% to over 99%. The simple answer to 'is rock salt 100% salt?' is no, because it always contains other minerals and impurities from its formation.

Over 90% of the world's table salt is refined, stripping it of trace minerals. To tell if salt is unrefined, look for its natural color, coarse texture, and slight moisture content, which indicate minimal processing and a richer mineral profile.

According to the Food and Drug Administration, table salt is a crystal-like compound that is abundant in nature and is also known by its chemical name, sodium chloride. However, common salt contains more than just NaCl, with its exact composition varying based on its source and processing methods.