Monterey Bay Spice Company sea salt is 100% pure. This product is notknown to be produced with alkali-extracted humic acid, ligninsulfonate, and or potassium bicarbonate. There are no flowing agentsor anti-caking agents added. This salt is harvested out of the Pacific Ocean, cleaned and washed with sea water brine and kiln dried. The salt is then run through a series of sieves and screens in order toachieve Monterey Bay Spice Company's specifications.