Non-GMO. Non-ETO (ETO (ethylene oxide) is a sterilization chemical commonly used in the spice industry, but never by Frontier Co-op). Non-irradiated. Non GMO Project verified. nongmoproject.org. We're a member-owned co-op, responsible to people and planet. You can feel good about the superior flavor of Frontier Co-op seasonings. We look to growers who share our commitment to quality, sustainability, and ethical trade. Learn more at: frontiercoop.com.