Is e503ii vegan?

E503ii is the European food additive code for ammonium bicarbonate, an inorganic compound widely used as a chemical leavening agent and acidity regulator. It is commercially produced through chemical synthesis, primarily by reacting carbon dioxide gas with an aqueous ammonia solution. Modern industrial production relies entirely on synthetic chemical and mineral sources.

This additive is commonly found in dry, crisp baked goods such as crackers, wafers, cookies, gingerbread, and various commercial biscuits. During baking, the compound decomposes into ammonia gas, carbon dioxide, and water vapor, creating pockets of air that give foods a light and crunchy texture without leaving chemical residue behind.

E503ii is vegan because its production relies entirely on synthetic and mineral raw materials. No animal-derived ingredients, animal tissues, or animal-based processing aids are involved in its synthesis or packaging.