E503 – Ammonium carbonates
Acidity regulatorDescription
White or almost white powder or hard, crystalline masses
Notes
Ammonium carbonates are white, crystalline powders made by combining ammonia with carbon dioxide and water. This creates compounds like ammonium carbonate and ammonium bicarbonate, which have been used in baking for centuries - they were actually some of the original leavening agents before modern baking powder became common. The ammonia used comes from industrial processes, but don't worry - it's completely transformed in the final product. These compounds work as leavening agents, which means they help baked goods rise by releasing carbon dioxide gas when heated. They're particularly popular in crispy cookies, crackers, and some traditional European baked goods because they create a light, airy texture and then completely disappear during baking, leaving no residual taste. Unlike baking powder, ammonium carbonates work especially well in low-moisture baked goods. Ammonium carbonates are synthetic but completely safe when used properly in baking. They're suitable for vegetarian and vegan diets and generally acceptable under religious dietary laws since they contain no animal products. One thing to note is that they should only be used in baked goods that get hot enough during cooking - if you tried to use them in something that doesn't bake thoroughly, you might detect a slight ammonia smell, though this completely disappears with proper baking.