Ammonium Bicarbonate

Processed

Ammonium Bicarbonate

Ammonium bicarbonate is a volatile chemical leavener—sometimes called baker’s ammonia—that decomposes fully to gas when heated, leaving no alkaline residue in thin, dry baked goods. Traditional northern European and specialty cookie makers prize it for ultra-crisp springerle, speculaas, crackers, and flat biscuits where carbon dioxide and ammonia vapours create fine open texture without the soapy taste residual soda can leave. It is poorly suited to thick moist cakes, which can trap ammonia odour. The food-grade product is a white crystalline powder with a sharp ammonia scent when fresh; bakers store it sealed and often dissolve it in a little warm liquid before mixing for even distribution. Modern plants produce it synthetically to high purity for both food and technical uses. Use levels are low, ventilation during baking is wise, and finished thin goods should smell clean and sweet, not of ammonia.

Also known as: E503(ii), Hirschhornsalz, Baker's Ammonia, Hartshorn, Ammonium bicarbonate

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Breeds & varieties

A sample of named types with their own origin and culinary profiles.

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Characteristics

Preparations

Dissolved In Warm LiquidDry PowderHeat Activated BakeMixed Into Dough

Provenance

FCC GradeFood GradeHalalKosher

Sources

Indoor Farmed

Traits

Ammonia Aroma RawCrisp Texture AidFunctional Group: Leavening AgentHeat DecomposingNo Alkaline ResidueThin-Goods SpecialistVolatile LeavenerWhite Crystal

Nutrition and pairings

Nutrition

Typical values per 100 g edible portion. Nutrient names open the reference page.

Nutrition Facts

Per 100 g edible portion

Calories 371

Amount per 100 g

  • Total Fat 0.99 g
  • Saturated Fat 0.54 g
  • Trans Fat 0 g
  • Monounsaturated Fat 0.19 g
  • Polyunsaturated Fat 0.2 g
  • Cholesterol 0 mg
  • Sodium 21.4 mg
  • Salt 0.05 g
  • Total Carbohydrate 95.6 g
  • Dietary Fibre 0 g
  • Total Sugars 88.6 g
  • Complex / starch 1.98 g
  • Protein 1.89 g
  • Water 5.31 g
Detailed nutrients

Refined processed sweeteners and additives are energy-dense carbohydrate with little else.

In the kitchen

Culinary partners and combinations that usually underperform with Ammonium Bicarbonate.

Pairs well with

Classic and complementary matches

Usually avoid with

Often clash in flavour or tradition

History

DE

Baker’s ammonia from ammonium salts became a regional leavener for crisp continental biscuits.

NL

Dutch and German cookie traditions standardised ammonium bicarbonate for snap and pale colour.

Synthetic manufacture replaced many older hartshorn routes for consistent food-grade supply.

Artisan and industrial cracker lines continued selective use where residual alkali must be avoided.

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