Premium quality. Great for baking. Gluten free. Xanthan Gum is made from the outer layer of a tiny, inactive bactetitm called Xanthomonas campestris. It is an excellent all-purpose thickener let dressings, gravies and sauces. Its unique binding ability makes it the ideal substitute for gluten in gluten-free baking. You can see our quality. To your good health - Bob Moore. Dear Friend, As a boy, one of my greatest joys was spending time in the kitchen with my grandmother while she made her famous cinnamon rolls. Grandmother told me that the secret to making delicious cinnamon rolls was simple: always use the very best ingredients. As I grew up, I took her words to heart. I'm committed to providing you with top-quality ingredients, and I am proud to say my grandmother would approve of the superior xanthan gum you'll find in this pace. It is nothing less than the very best! Happy baking, Bob Moore. Tested and confirmed gluten free in our quality control laboratory. An employee-owned company. Find recipes at bobsredmill.com.