Celtic Sea Salt® Brand Light Grey Celtic® is totally unprocessed, kosher and hand harvested. It is dried by the sun and the wind, retaining the ocean’s moisture and locking in a vast array of vital trace elements. Celtic Sea Salt® Light Grey Celtic® is a coarse, moist salt that gets a light grey hue from the pure clay sole it is harvested from. There is no comparison, in taste or in health effects, between mineral-rich Celtic Sea Salts® and chemically-treated iodized salts. Celtic Sea Salt® Light Grey Celtic® has a rustic old-world flavor that is more assertive than other salts. Try using it in cooking, for soups and stews, grilling, or grind it with a mortar & pestle or salt grinder.