Sumac is often referred to as a souring agent and is popular in middle eastern cuisine. Use sumac on meats prior to grilling or as a final touch on rice dishes. Certified Organic by Oregon tilth. This product contains no gluten, no msg, no artificial coloring, no preservatives, no sugar, no salt, non gmo, no irradiation, no peanuts, no soybeans, no milk, no eggs, no crustacea, no tree nuts, and no wheat. Packaged with renewable choice energy. Non gmo project: verified. USDA Organic. Certified gluten-free....