Ingredient

Ammonium Bicarbonate

Source
Not animal-derived
Allergen
No
Role in food
Ammonium bicarbonate is primarily used as a leavening agent in baking, particularly for flat, …

What is Ammonium Bicarbonate?

Ammonium bicarbonate is an inorganic compound with the chemical formula NH4HCO3. It is a white solid that readily decomposes to ammonia, carbon dioxide, and water. It is produced industrially through the reaction of ammonia and carbon dioxide with water.

Is Ammonium Bicarbonate vegan?

Ammonium Bicarbonate is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Ammonium Bicarbonate gluten-free?

It does not contain gluten.

Is Ammonium Bicarbonate a major allergen?

Ammonium bicarbonate is not one of the 14 major allergens that UK law requires to be emphasised on food labels.

What is Ammonium Bicarbonate used for?

Ammonium bicarbonate is primarily used as a leavening agent in baking, particularly for flat, crisp baked goods like biscuits and crackers.

Is Ammonium Bicarbonate safe?

Ammonium bicarbonate is an authorised food additive in the UK and the EU, listed as E503(ii).

Why it's used

Ammonium bicarbonate is primarily used as a leavening agent in baking, particularly for flat, crisp baked goods like biscuits and crackers. When heated, it releases gases that cause the dough to rise, creating a lighter texture. It is also sometimes used as a source of ammonia in food processing.

Health notes

Ammonium bicarbonate is an authorised food additive in the UK and the EU, listed as E503(ii). It has been evaluated by EFSA, and its use is permitted in certain food categories under specified conditions. At typical levels of use in food, it is not associated with adverse health effects.

Allergen info

Ammonium bicarbonate is not one of the 14 major allergens that UK law requires to be emphasised on food labels. It does not contain gluten.

Foods that contain Ammonium Bicarbonate

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Auto-generated content. This description was generated automatically and is pending editorial review. Inaccuracies are possible. Found a mistake? Contact us.

Last updated: 17 October 2026

Note: This site presents label data from Open Food Facts for general information. It is not medical advice. Check the package label; formulations change.