Bob's red mill, yeast, dry active is a wonderful, gluten-free baking product. This product is most often used when baking breads and causes the dough to rise in order to achieve a fluffy consistency of the finished loaf. Bob's red mill, yeast, dry active is manufactured in a factory that also processes soy, soybeans, and tree nuts. Please see nutritional facts panel for possible allergens. Bob's red mill products labeled gluten-free are batch tested in a quality control laboratory and use an elisa gluten assay test to confirm that a product is gluten-free.