Bob's Red Mill Xanthan Gum is perfect for gluten-free baking. It is made from the outer layer of a tiny, inactive bacterium called Xanthomonas campestris. It is an excellent all-purpose thickener for dressings, gravies and sauces. It is also great for gluten-free baking, as it provides a good crumb structure and helps to hold the baked goods together. This package contains 5 bags of 227g each.