baking

 
Sodium bicarbonate (baking soda) tends to produce carbon dioxide (CO2), when mixed with an acidic substance.  This accounts for dough or batter bubbling when sodium bicarbonate in baking soda is added to ingredients like sugar, milk, or shortening. However, baking soda alone tends to become unstable at higher temperatures. So for example, one might see baking soda in recipes for pancakes, or cookies, because these food items don’t require long baking times.Read more