Ammonium Bicarbonate Food Grade – E503(ii) for Bakery Use

Ammonium Bicarbonate Food Grade is a highly effective leavening agent widely used in biscuits, cookies, crackers, wafers, and other low-moisture bakery products. Also known as baker’s ammonia, ammonium hydrogen carbonate, or E503(ii), this white crystalline powder releases carbon dioxide, ammonia, and water vapor when heated. As a result, it creates excellent expansion, an open structure, and a light, crispy texture in baked products.

Food manufacturers choose food grade ammonium bicarbonate because it provides rapid gas release during baking and can create a distinctive crispness that conventional leavening agents may not achieve in the same way. Moreover, it works particularly well in thin bakery products where ammonia can escape completely during heating.

Basekim supplies Ammonium Bicarbonate Food Grade for food manufacturers, bakery producers, distributors, and international buyers looking for reliable bulk sourcing and export support.

What Is Ammonium Bicarbonate Food Grade?

Ammonium Bicarbonate Food Grade is an inorganic compound with the chemical formula NH₄HCO₃. The food industry primarily uses it as a chemical raising or leavening agent.

It appears as a white crystalline powder or fine crystals and dissolves readily in water. In addition, manufacturers recognize the food additive as E503(ii) in many markets.

Unlike biological yeast, ammonium bicarbonate does not require fermentation time. Instead, heat activates the compound during baking.

When heated, it decomposes into:

  • Carbon dioxide (CO₂)

  • Ammonia (NH₃)

  • Water vapor (H₂O)

Consequently, the released gases expand the dough and create a porous, light structure.

Basic Product Information

PropertyInformation
Product NameAmmonium Bicarbonate Food Grade
Chemical NameAmmonium Hydrogen Carbonate
Common NameBaker’s Ammonia
Chemical FormulaNH₄HCO₃
CAS Number1066-33-7
E NumberE503(ii)
Molecular WeightApprox. 79.06 g/mol
AppearanceWhite crystalline powder
Main FunctionFood leavening agent
SolubilitySoluble in water
Main ApplicationsBiscuits, cookies, crackers and wafers

Food-grade commercial products commonly identify ammonium bicarbonate with CAS No. 1066-33-7 and E503(ii).

How Does Ammonium Bicarbonate Work in Baking?

The main advantage of food grade ammonium bicarbonate comes from its heat-sensitive decomposition.

As the oven temperature increases, ammonium bicarbonate breaks down and releases gases. Therefore, these gases expand inside the dough and create small air spaces.

The process can improve:

  • Product volume

  • Dough expansion

  • Porosity

  • Surface development

  • Crispness

  • Texture

  • Product spread

Moreover, ammonium bicarbonate can leave very little solid residue after proper baking because its decomposition products are volatile.

This characteristic makes it particularly useful for dry bakery products.

However, manufacturers must allow enough moisture and ammonia to escape. Otherwise, thick or high-moisture products may retain an undesirable ammonia smell or taste. For this reason, the ingredient performs best in thin, low-moisture baked products.

Ammonium Bicarbonate for Biscuits

One of the largest applications of Ammonium Bicarbonate Food Grade is biscuit manufacturing.

Industrial biscuit producers use it because it can produce excellent aeration while supporting a dry and crispy final texture.

During baking, the gases escape quickly from thin biscuit dough. Consequently, manufacturers can achieve good expansion without leaving significant residues behind.

It may also help improve:

  • Biscuit thickness

  • Surface appearance

  • Internal porosity

  • Crisp bite

  • Dough spread

  • Product consistency

Therefore, baker’s ammonia remains an important ingredient in many traditional and industrial biscuit formulations.

Ammonium Bicarbonate for Cookies

Manufacturers also use ammonium bicarbonate in cookies, particularly when they want a light, crisp structure.

Because cookie pieces usually have a relatively large surface area compared with their thickness, ammonia can escape efficiently during baking.

As a result, food grade ammonium bicarbonate can support:

  • Controlled cookie spread

  • Crisp texture

  • Lower product density

  • Porous structure

  • Better bite characteristics

Nevertheless, manufacturers should perform formulation trials because baking temperature, cookie thickness, moisture, sugar level, and fat content can affect final performance.

Ammonium Bicarbonate for Crackers

Crackers require controlled aeration and low final moisture. Therefore, ammonium bicarbonate food grade for crackers can provide excellent performance.

During oven processing, the ingredient releases gases that create small pores throughout the dough.

Consequently, finished crackers can develop a lighter and more brittle structure.

In addition, ammonium bicarbonate can work alongside other raising agents depending on the formulation.

Manufacturers may combine it with sodium bicarbonate or other bakery ingredients to control expansion, color, pH, and texture.

Ammonium Bicarbonate for Wafers

Wafer manufacturing also benefits from rapid gas generation.

Because wafers are extremely thin, ammonia can escape quickly during heating. Therefore, E503(ii) can help create a light, porous wafer structure while supporting crispness.

Its rapid decomposition makes it particularly suitable for continuous industrial bakery production where fast processing is important.

Ammonium Bicarbonate vs Baking Soda

Buyers frequently compare ammonium bicarbonate vs sodium bicarbonate because both products function as bakery leavening agents. However, they behave differently during baking and suit different types of food products.

Ammonium bicarbonate, also known as baker’s ammonia, releases carbon dioxide, ammonia, and water vapor when heated. Because these gases escape quickly, the ingredient works especially well in thin, dry bakery products such as biscuits, crackers, cookies, and wafers.

Sodium bicarbonate, on the other hand, is widely used across a broader range of bakery formulations. It usually reacts with acidic ingredients to release carbon dioxide and support dough expansion.

FeatureAmmonium BicarbonateSodium Bicarbonate
FormulaNH₄HCO₃NaHCO₃
Common NameBaker’s AmmoniaBaking Soda
Main Gas ReleaseCO₂, NH₃ and water vaporMainly CO₂
Best ApplicationsThin, dry bakery productsWide range of bakery products
CrispnessExcellentGood
Sodium ContentNo sodiumContains sodium
Thick ProductsUsually less suitableMore suitable

Therefore, manufacturers should select the leavening system according to product thickness, moisture content, formulation, desired texture, and baking conditions.

Food Grade vs Industrial Grade Ammonium Bicarbonate

Although food-grade and industrial-grade products both contain ammonium bicarbonate, buyers should not treat them as interchangeable.

Food Grade Ammonium Bicarbonate must meet relevant purity, contaminant, and food-safety requirements. Therefore, food manufacturers should carefully review technical documentation before using the product in bakery, confectionery, or other food-processing applications.

Meanwhile, industrial chemical manufacturers also work with related alkaline materials such as Soda Ash, which is widely used in chemical processing, detergents, glass production, and other manufacturing industries.

Before ordering food-grade ammonium bicarbonate, buyers should review documents such as:

  • Certificate of Analysis

  • Technical Data Sheet

  • Safety Data Sheet

  • Food-grade declaration

  • Heavy-metal limits

  • Country-specific compliance documentation

  • Product traceability information

Industrial-grade ammonium bicarbonate, on the other hand, may be intended for applications where food compliance is not required.

Therefore, food producers should always purchase a verified food-grade product that meets the technical and regulatory requirements of their target market.

Why Use Food Grade Ammonium Bicarbonate?

Food manufacturers use this ingredient because it offers several valuable processing characteristics.

Strong Leavening Performance

Ammonium bicarbonate produces significant gas when heated. Consequently, relatively small quantities can provide effective aeration in suitable bakery formulations.

Excellent Crispness

One of its most important advantages is its ability to support a dry and crispy texture.

Therefore, biscuit, cracker, and cookie manufacturers frequently choose it when crispness is a critical product characteristic.

Good Product Porosity

The released gases create open spaces inside the dough during baking. As a result, the finished product can have a lighter structure.

Fast Thermal Decomposition

Unlike yeast, ammonium bicarbonate does not require fermentation.

Instead, the oven activates the ingredient directly. Therefore, manufacturers can integrate it easily into high-speed bakery processes.

Low Solid Residue

When used correctly, the compound breaks down into volatile substances during baking. This characteristic can reduce the amount of solid leavening residue in the finished product.

Ammonium Bicarbonate vs Baking Soda

Buyers frequently compare ammonium bicarbonate vs sodium bicarbonate because both products function as bakery leavening agents.

However, they behave differently.

FeatureAmmonium BicarbonateSodium Bicarbonate
FormulaNH₄HCO₃NaHCO₃
Common NameBaker’s AmmoniaBaking Soda
Gas ReleaseCO₂, NH₃ and water vaporMainly CO₂ when reacting
Best ApplicationsThin, dry bakery productsWide range of bakery products
CrispnessExcellentGood
Sodium ContentNo sodiumContains sodium
Thick ProductsUsually less suitableMore suitable

Therefore, manufacturers should select the leavening system according to product thickness, moisture content, recipe, texture target, and baking conditions.

Food Grade Ammonium Bicarbonate Specifications

Exact specifications depend on the manufacturer, food standard, and destination market. Nevertheless, buyers commonly evaluate the following parameters:

ParameterTypical Requirement
AppearanceWhite crystalline powder
AssayApprox. 99%+
IdentificationConforms
ChlorideControlled
SulfateControlled
Non-volatile residueLow
Heavy MetalsWithin food-grade limits
ArsenicWithin food-grade limits
OdorCharacteristic
Water SolubilitySoluble

Commercial food-grade specifications frequently show assay levels around 99% or higher, although the exact specification must always be confirmed through the supplier’s TDS or Certificate of Analysis.

Food Grade vs Industrial Grade Ammonium Bicarbonate

Although both grades contain ammonium bicarbonate, buyers should not treat them as interchangeable.

Food grade ammonium bicarbonate must meet relevant purity and contaminant requirements for food applications.

Manufacturers should therefore review documentation such as:

  • Certificate of Analysis

  • Technical Data Sheet

  • Safety Data Sheet

  • Food-grade declaration

  • Country-specific compliance documentation

  • Heavy-metal limits

  • Product traceability information

Industrial-grade material, on the other hand, may target applications where food compliance is unnecessary.

Therefore, food manufacturers should always purchase a verified food-grade product.

Recommended Applications

Ammonium Bicarbonate Food Grade is primarily suitable for low-moisture bakery products, including:

  • Biscuits

  • Cookies

  • Crackers

  • Wafers

  • Flat baked goods

  • Dry bakery products

  • Selected confectionery products

  • Bakery premixes

  • Industrial dough formulations

In particular, thin products allow ammonia to evaporate more efficiently during baking.

Can Ammonium Bicarbonate Be Used in Cakes?

Manufacturers should use caution when considering ammonium bicarbonate for cakes.

Soft cakes generally contain more moisture and have a thicker structure than biscuits or crackers.

Therefore, ammonia may not escape completely.

If residual ammonia remains inside the product, it can create an unpleasant odor or flavor.

For that reason, ammonium bicarbonate is generally better suited to products with:

  • Low final moisture

  • Thin dimensions

  • Large surface area

  • Sufficient baking temperature

  • Adequate baking time

Manufacturers should always conduct production trials before using it in new formulations.

How Much Ammonium Bicarbonate Should Be Used?

There is no universal dosage for every bakery product.

The correct amount depends on several formulation and processing factors, including:

  • Flour composition

  • Product thickness

  • Dough moisture

  • Sugar concentration

  • Fat content

  • Baking temperature

  • Baking time

  • Desired expansion

  • Final product moisture

  • Other leavening agents

Therefore, manufacturers should determine the dosage through formulation testing rather than relying on one fixed percentage.

Packaging of Ammonium Bicarbonate Food Grade

Bulk food-grade material is commonly supplied in moisture-resistant industrial bags.

Typical packaging may include:

  • 25 kg bags

  • PE-lined woven bags

  • Multi-layer bags

  • Palletized export packaging

  • Jumbo bags for selected bulk orders

Twenty-five-kilogram bags are widely offered in the commercial market.

Packaging should protect the powder from humidity, contamination, and excessive heat throughout transportation and storage.

Storage and Handling

Proper storage helps maintain product quality.

Store Ammonium Bicarbonate Food Grade in:

  • A cool location

  • A dry warehouse

  • Sealed original packaging

  • A well-ventilated environment

  • An area away from heat

  • An area protected from moisture

Additionally, close opened packaging tightly after use.

Because ammonium bicarbonate can gradually decompose when exposed to unfavorable conditions, manufacturers should follow the storage instructions stated on the supplier’s technical documents.

Ammonium Bicarbonate Food Grade Price

The Ammonium Bicarbonate Food Grade price can change according to market conditions and purchasing requirements.

Important price factors include:

  • Product purity

  • Food-grade certification

  • Order quantity

  • Packaging type

  • Manufacturer

  • Country of origin

  • Freight costs

  • Destination country

  • Incoterm

  • Currency fluctuations

  • Required documentation

Therefore, buyers should request a current quotation based on the exact quantity and destination rather than relying on a fixed online price.

Bulk buyers can usually obtain more competitive pricing than customers purchasing smaller quantities.

Buying Ammonium Bicarbonate Food Grade in Bulk

Before placing a bulk order, purchasing teams should clearly define their requirements.

A professional inquiry should include:

  • Product: Ammonium Bicarbonate Food Grade

  • Required quantity

  • Destination country or port

  • Preferred packaging

  • Required purity

  • Required food certifications

  • Delivery term

  • Expected shipment schedule

Furthermore, buyers should request a recent COA when necessary to confirm that the offered batch meets their production requirements.

What Buyers Should Check Before Ordering

Price alone should not determine purchasing decisions.

Instead, buyers should also evaluate:

  1. Product purity

  2. Food-grade compliance

  3. Batch consistency

  4. Packaging quality

  5. Certificate availability

  6. Shelf life

  7. Production origin

  8. Shipping conditions

  9. Export documentation

  10. Supplier reliability

Consequently, reviewing both technical and commercial conditions can reduce sourcing risks.

Ammonium Bicarbonate Food Grade Supplier

Choosing a dependable Ammonium Bicarbonate Food Grade supplier is particularly important for industrial bakeries and distributors that require repeat orders.

A qualified supplier should provide clear specifications, suitable packaging, batch documentation, and international shipping support.

For international purchases, customers should specify the destination, required quantity, packaging, and technical requirements before requesting a quotation.

This approach allows the supplier to provide more accurate commercial terms and recommend the most suitable food-grade product.

Table of Contents

Technical Specifications

ParameterFood Grade
Chemical FormulaNH₄HCO₃
Purity99.0–100.5%
AppearanceWhite Crystalline Powder
Molecular Weight79.06 g/mol
CAS Number1066-33-7
E NumberE503(ii)
Chloride (Cl)≤ 0.003%
Sulfate (SO₄)≤ 0.007%
Residue After Evaporation≤ 0.008%
Lead (Pb)≤ 3 mg/kg
Arsenic (As)≤ 2 mg/kg
Solubility in WaterSoluble
Physical FormPowder / Fine Crystals
Main FunctionLeavening Agent
Packaging25 kg Bag

References and certificates

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