Brand Purity Additives Non-GMO/Gluten-Free Availability Arm & Hammer 100% Pure No No Stores, Online Bob’s Red Mill Natural, 100% Pure No Chemicals Yes Health Stores, Online 365 by Whole Foods 100% Pure No Yes Whole Foods, Amazon Pure Organic Ingredients 100% Pure, Natural No Aluminum Yes Online Anthony’s Premium 100% Pure No Yes Online What … Continue reading The Best Baking Soda Brands You Can Count On