Baking soda can be used in baking or as an antacid. It can also be used for deodorizing, removing stains, smothering grease fires. Baking soda can also be used as a toothpaste or underarm deodorant as well as a first aid treatment for insect bites or rashes. The uses of baking soda are endless. A must have item for any long term emergency food storage or to keep on hand for everyday use. Shelf life estimates are based on industry studies from sources deemed reputable. Since Rainy Day Foods has no control over individual storage practices, they must disclaim any liability or warranty for particular results. Should be stored in cool dark place, optimum condition is 60 degrees or less, for longer storage. Storing properly in our enameled cans and Super pail buckets, product may store 3-5 years. Levening may decrease over time. Bulk products need to be repackaged for long term storage.