Rumford is a trusted name in baking, with roots dating back to the late 1800s. Rumford Corn Starch can be used as a thickener so that your sauces, fillings, and gravies come out perfectly every time. Rumford Corn Starch is Non-GMO Project Verified, gluten-free, vegan, and certified Kosher. Our mission is to provide consistent, high-quality ingredients that you can trust for a great food experience. Proudly produced in Indiana by Clabber Girl Corporation.