Culinox 999 is one of the highest grades of salts that you can find, which makes it the perfect option for food. It is a high purity, food grade granulated salt that is actually cubic in structure. The high purity of the salt helps to ensure that it keeps its flavor and intensity. It goes through a brine treatment and a crystallizing technique along with a washing that helps to reduce the iron, copper, magnesium, calcium and other heavy metal content. It complies with the Food Chemicals Codex and all federal standards. Lastly, it is certified as Kosher and contains no additives.