E503

Ammonium carbonates

Neutral Leavening agent Toxicity: Neutral

Score impact

0.00

points/product

Description

The food additive E503, known as ammonium carbonates, is an inorganic compound primarily used as a leavening agent in bakery and pastry products. Its origin is synthetic, although it is also found naturally in the atmosphere and in some biological processes.

Industrially, it is obtained by reacting carbon dioxide with aqueous ammonia, or by thermal decomposition of ammonium carbonate. It appears as a white powder or granules, with a slight ammonia odor. It is soluble in water but insoluble in ethanol.

Its main function is to release carbon dioxide (CO₂) and ammonia (NH₃) when heated, which causes dough and cookies to rise. Unlike sodium bicarbonate, it leaves no alkaline residue, making it ideal for low-moisture products.

Historically, ammonium carbonates were already used in ancient times as a chemical leavening agent. In the European Union, its use has been approved since the first additive lists and is governed by Regulation (EC) No 1333/2008. The European Food Safety Authority (EFSA) has evaluated E503 several times, most recently in 2018, concluding that there are no safety concerns at authorized use levels.

The World Health Organization (WHO) and the Joint FAO/WHO Expert Committee on Food Additives (JECFA) have also evaluated it, establishing that it is not necessary to set an Acceptable Daily Intake (ADI) due to its low toxicity and because it decomposes during baking. Regarding food safety, E503 is considered safe for the general population, although it can generate traces of ammonia that, at high concentrations, could be irritating. However, levels in foods are very low.

On labeling, it must appear as "ammonium carbonates" or "E503."

In summary, it is an effective and safe additive within established limits.

Products in our Spanish database containing this additive

Examples found in ComerClaro Spanish product database

Product names and supermarket data may appear in Spanish.

Classification:

Official code E503
Category Leavening agent
Risk level Neutral
Toxicity Neutral
Score impact 0.00 pts

Statistics

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Sources

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