Other Information: Each 1/2 teaspoon contains 616 mg sodium. Misc: Hundreds of Uses like: Fresh box for baking. America's No. 1 trusted baking soda brand. The standard of purity. Change every 30 days. Fresh box for baking. Since an open box of baking soda naturally absorbs unwanted smells and odors, always use a fresh, unopened box of Arm & Hammer Baking Soda to make the best tasting cookies and cakes! Serv. size 1/8 tsp (600 mg) (Amount in a serving of baked food). Visit armhammer.com for more baking soda tips and special offers. The Arm & Hammer Money Back Guarantee: We unconditionally guarantee 100% satisfaction. If you are not satisfied in any way, please call our Consumer Relations Department toll-free at: 1-800-524-1328, 9 am - 5 pm ET. Box made from 100% recycled paperboard (Minimum 35% post-consumer content).