Non-ETO (ETO (Ethylene oxide) is a sterilization chemical commonly used in the spice industry, but never by Frontier Co-Op). Non-irradiated. 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.