Baking Soda from Bob's Red Mill is a versatile addition to your kitchen and beyond! Made from deposits of mineralized sodium bicarbonate, it is extracted without the use of chemicals. A common ingredient in many recipes, it's also a great household cleaner and deodorizer. Bob's Red Mill products labeled gluten free are milled and blended in their dedicated gluten free mill room, packaged in a dedicated gluten-free packaging room and batch tested in a dedicated gluten-free quality control laboratory. Kosher.