Since 1871. For baking, cleaning & deodorizing. Baking Soda's original use in baking. In dough or batter, baking soda helps to make the dough rise, also known as leavening. When baking soda is combined with acidic ingredients (like lemon juice or buttermilk) and is heated, it gives off carbon dioxide. This leavening causes dough or batter to rise and become light and fluffy, making a wonderful tasting cake. Welcome to First Street! For over 145 years we have been committed to offering high quality products, at great value, to families and businesses in the communities we serve. Take a walk down First Street and enjoy the wide variety of exclusive products we offer. 100% guaranteed or your money back. Product of USA.