Can Baking Soda Put Out A Fire?

Baking soda has long been a staple in many kitchens, known for its versatility and numerous uses. From baking to cleaning, this humble ingredient has proven to be handy.

But have you ever wondered if baking soda can also extinguish a fire?

In this blog post, we will dive deep into the topic and explore different perspectives and theories surrounding the use of baking soda as a fire suppressant. Join us as we uncover the truth and illuminate this intriguing subject.

Can Baking Soda Put Out A Fire

What Is Baking Soda

Baking soda, also known as sodium bicarbonate (NaHCO3), is a white, crystalline powder commonly used in baking, cooking, cleaning, and various household applications.

It is a chemical compound that consists of sodium ions (Na+), bicarbonate ions (HCO3-), and water molecules (H2O).

Baking soda is alkaline in nature and has a mild, slightly salty taste. It has many uses, including as a leavening agent in baking, a cleaning agent, a deodorizer, and even a home remedy for various purposes.

Can Baking Soda Put Out A Fire

Yes, baking soda can be used to extinguish certain types of fires. Baking soda, also known as sodium bicarbonate, is a commonly used household ingredient with fire-suppressing properties.

It can effectively extinguish small fires involving certain flammable materials.

Baking soda is most effective in smothering or suppressing fires that involve flammable liquids, such as cooking oil or gasoline.

When baking soda is applied to such fires, it releases carbon dioxide gas, which helps to smother the flames by displacing oxygen.

Additionally, baking soda can also help to cool down the temperature of the fire.

Types Of Fires Baking Soda Can Extinguish

Cooking oil fires: Baking soda can effectively extinguish fires caused by cooking oils or grease. When baking soda is applied to a cooking oil fire, it releases carbon dioxide gas, which helps to smother the flames by displacing oxygen.

Gasoline fires: Baking soda can suppress fires involving gasoline or other flammable liquid fuels. It works similarly by releasing carbon dioxide gas, which helps to suffocate the flames and reduce oxygen availability.

However, it’s important to note that baking soda may not be effective for large-scale or spreading gasoline fires, and professional assistance may be required.

How Does Baking Soda Work?

When baking soda is applied to a fire involving flammable liquids such as cooking oil or gasoline, it employs two main mechanisms to suppress the flames:

Smothering the flames: Baking soda releases carbon dioxide (CO2) gas when heated. This gas acts as a fire suppressant by displacing oxygen, essential for combustion.

The CO2 forms a blanket-like layer over the fire, smothering the flames and cutting off the oxygen supply, thereby extinguishing the fire.

Cooling the fire: Baking soda has a high heat capacity, which means it can absorb significant heat. By absorbing heat from the fire, baking soda helps reduce the flames’ temperature.

Lowering the temperature can disrupt the fire triangle, which consists of heat, fuel, and oxygen, and hinder the fire’s ability to sustain itself.

Chemical decomposition: Baking soda also undergoes a chemical decomposition process when heated.

This decomposition releases water vapor and carbon dioxide gas, further contributing to fire suppression by diluting the oxygen concentration and reducing the heat.

Baking Soda vs Salt For Fire Suppression

Baking soda, sodium bicarbonate, is a versatile ingredient in most kitchens. It is often used in baking as a leavening agent but has remarkable fire-suppressing qualities.

Baking soda releases carbon dioxide, smothering flames by displacing oxygen when heated. This reaction effectively starves the fire of its fuel source, leading to its suppression.

On the other hand, salt, or sodium chloride, is a readily available and inexpensive mineral. While it may not have the same chemical reaction as baking soda, it can still be used for fire suppression in certain situations.

When salt is thrown onto a fire, it can help to smother the flames by absorbing heat and preventing the fire from spreading.

This method is particularly useful for grease fires, where salt can create a barrier between the flames and the fuel, cutting off the fire’s oxygen supply.

Now, let’s compare the effectiveness of baking soda and salt in different fire scenarios:

Kitchen Fires: Baking soda is often recommended for kitchen fires because of its ability to smother flames caused by grease or electrical fires.

Its reaction with heat and release of carbon dioxide can quickly suppress these types of fires.

While useful for smothering grease fires, salt may not be as effective in electrical fires due to its lack of reactive properties.

Small Household Fires: Baking soda can also effectively extinguish small household fires, such as those caused by paper, fabric, or wood. Its ability to displace oxygen can help to suffocate the flames and prevent further spread.

However, salt may not be as effective in these situations because it lacks the same gas-releasing properties as baking soda.

Electrical Fires: When it comes to electrical fires, it is crucial never to use water as it can conduct electricity and potentially worsen the situation.

In these cases, baking soda is often recommended due to its non-conductive properties.

On the other hand, salt is unsuitable for electrical fires and may not provide the same level of effectiveness.

While both baking soda and salt have their merits in fire suppression, it is important to note that they are not always interchangeable.

The choice between the two depends on the type of fire and the materials involved. It is essential to consider the specific circumstances and use the appropriate method accordingly.

How Is Sodium Bicarbonate Used In Fires?

Baking soda, this versatile compound, has many applications, and its use in firefighting is no exception. Sodium bicarbonate is used in fires and is an effective firefighting tool.

Sodium bicarbonate is a white crystalline powder with various uses in everyday life. From baking to cleaning, this compound is known for its versatility.

However, due to its unique properties, it is also an effective fire suppressant.

One of the main ways sodium bicarbonate is used in fires is through the operation of fire extinguishers. Fire extinguishers containing sodium bicarbonate are commonly known as dry chemical extinguishers.

These extinguishers are designed to quickly and effectively extinguish Class B and C fires involving flammable liquids and electrical equipment, respectively.

Using Sodium Bicarbonate Fire Extinguishers

Sodium bicarbonate fire extinguishers, also known as dry chemical fire extinguishers, are commonly used for fire suppression in various settings.

These extinguishers contain a mixture of sodium bicarbonate (baking soda) and other dry chemical agents. When activated, they release a fine powder that can effectively combat different types of fires.

Here are some key points to know about using sodium bicarbonate fire extinguishers:

Versatility: Sodium bicarbonate fire extinguishers can be used on different fires, including Class B (flammable liquids) and Class C (electrical) fires. This makes them suitable for a wide range of fire emergencies.

Mechanism of action: When discharged, sodium bicarbonate fire extinguishers smother the flames and interrupt the chemical reactions needed for combustion.

The fine powder released helps to block the oxygen supply, cool down the fire, and extinguish the flames.

Safe for electrical fires: Sodium bicarbonate fire extinguishers are non-conductive, which means they can be safely used on electrical fires.

The powder forms a barrier between the electrical source and the extinguishing agent, minimizing the risk of electrical shock.

Limited duration: Sodium bicarbonate fire extinguishers have a limited discharge duration. It’s important to use them strategically and aim at the base of the fire in a sweeping motion to maximize effectiveness.

If the fire re-ignites, additional extinguishers or professional assistance may be needed.

Cleanup considerations: After using a sodium bicarbonate fire extinguisher, the powder residue can be messy and may require thorough cleanup.

Following proper cleaning procedures to remove the powder and ensure the area is safe is advisable.

Training and maintenance: It is crucial to receive proper training on using sodium bicarbonate fire extinguishers.

Please familiarize yourself with their operation, location, and maintenance requirements. As recommended by the manufacturer, regular inspections and recharging are essential to ensure the extinguishers are functional when needed.

Will Vinegar And Baking Soda Put Out A Fire?

No, mixed vinegar and baking soda will not effectively extinguish a fire. While vinegar and baking soda can create a chemical reaction that produces carbon dioxide gas and foam, the resulting mixture is unsuitable for fire suppression.

When vinegar (which contains acetic acid) and baking soda (sodium bicarbonate) are combined, they undergo a reaction that produces carbon dioxide gas, water, and a small amount of sodium acetate. The carbon dioxide gas creates foam or bubbles due to the reaction.

However, this foam does not possess the necessary properties to smother flames or cool down a fire effectively.

Using a vinegar and baking soda mixture as a fire extinguisher is not recommended and may be ineffective in controlling or extinguishing fires.

It is important to use appropriate fire extinguishing methods and equipment, such as fire extinguishers specifically designed for the type of fire involved, or to contact emergency services for professional assistance in fire emergencies.

Can You Use Flour Instead Of Baking Soda To Put Out A Fire?

No, flour is not a suitable substitute for baking soda for extinguishing fires. Using flour to extinguish a fire can be dangerous and potentially worsen the situation.

Flour is a combustible material, meaning it can catch fire and contribute to the spread of flames.

When flour is thrown onto a fire, it can create a cloud of fine particles that can ignite and cause a fireball effect, increasing the intensity of the fire. This can result in a larger and more dangerous fire situation.

Unlike baking soda, flour does not possess the properties necessary to smother the flames or reduce the temperature of the fire.

Baking soda releases carbon dioxide gas, which displaces oxygen and helps to suffocate the flames. Flour, on the other hand, lacks this fire-suppressing capability.


Baking soda can effectively extinguish certain types of fires, particularly those involving flammable liquids. It releases carbon dioxide gas to smother the flames and reduce the fire’s temperature.

However, it is important to use the appropriate fire extinguisher for different types of fires and seek professional assistance when needed. Prioritizing personal safety and contacting emergency services is crucial in any fire emergency.