Non-GMO. Non GMO Project verified. nongmoproject.org. Built in adjustable grinder. This salt does not supply iodide, a necessary nutrient. Non-ETO (ETO (ethylene oxide) is a sterilization chemical commonly used in the spice industry, but never by Frontier Co-op). Non-Irradiated. This alder smoked salt does not contain any anti-caking agents. Caking may occur.