King Arthur Flour’s gluten-free baking mixes are held to the same high standards for texture and taste as the traditional flour and baking mixes that built our 220-year reputation. They are the only major brand to be third-party certified by the Gluten Free Certification Organization, with standards twice as stringent as those set by the Food and Drug Administration. In addition, they are produced in a dedicated allergen-free facility, guaranteed to be free of the top eight most common food allergens. The gluten-free mixes are also certified Kosher by the Chicago Rabbinical Council.