Is Corn Syrup Flammable? Discover the Surprising Truth!

Is Corn Syrup Flammable?

Corn syrup, also known as glucose syrup, is a common sweetener and thickening agent used in various food products. It is made from corn starch and consists primarily of glucose. But have you ever wondered if corn syrup is flammable? Let’s dive into the science behind it.

Is Corn Syrup Flammable? Discover the Surprising Truth!


The Composition of Corn Syrup

In order to understand whether corn syrup is flammable or not, it’s important to know its composition. Corn syrup is primarily made up of glucose, a type of sugar. Sugar, in general, is not flammable. It does not have the ability to catch fire by itself. However, this does not mean that corn syrup is entirely non-flammable. Let’s explore further.

Combustibility of Corn Syrup

Corn syrup is considered combustible, but it does not burn as easily as other flammable substances, such as gasoline or alcohol. Combustibility refers to the ability of a substance to burn in the presence of a flame or spark. While corn syrup can burn under certain conditions, it requires a significant amount of heat to ignite.

The high water content in corn syrup acts as a fire retardant, making it less prone to catching fire compared to substances with lower water content. The water in corn syrup absorbs heat and helps to lower the temperature required for combustion.

Is Corn Syrup Flammable? Discover the Surprising Truth!


Flash Point

The flash point of a substance is the lowest temperature at which it can ignite and produce a flammable vapor. Corn syrup has a relatively high flash point compared to other flammable liquids. This means that it requires a higher temperature to release enough flammable vapor to catch fire.

Liquid Flash Point (°C)
Corn Syrup 149
Gasoline -45
Alcohol (Ethanol) 13

As shown in the table above, corn syrup has a flash point of approximately 149°C, while gasoline and alcohol have much lower flash points. This further supports the fact that corn syrup is less flammable compared to these substances.

Safety Precautions

While corn syrup has a higher resistance to combustion compared to other flammable substances, it is still important to exercise caution when handling or storing it. Here are a few safety precautions:

  • Store corn syrup in a cool, dry place, away from direct sunlight and heat sources.
  • Avoid exposing corn syrup to open flames or sparks.
  • Do not smoke while handling corn syrup.
  • In case of a fire involving corn syrup, use appropriate fire extinguishing methods, such as carbon dioxide or dry chemical extinguishers.
  • Always follow the manufacturer’s guidelines and safety instructions.

Frequently Asked Questions For Is Corn Syrup Flammable? Discover The Surprising Truth!

Is Corn Syrup Flammable?

No, corn syrup is not flammable. It has a high water content which prevents it from catching fire easily.

Can Corn Syrup Catch Fire?

No, corn syrup does not have a high enough flammability to ignite or sustain a fire.

What Happens If You Expose Corn Syrup To Fire?

When corn syrup is exposed to fire, the water content evaporates and the syrup may caramelize or burn, but it does not catch fire.

Is It Safe To Use Corn Syrup Near Open Flames?

Yes, it is safe to use corn syrup near open flames as it is not flammable and does not pose a fire hazard.


Although corn syrup is technically considered combustible, it is not highly flammable like certain volatile liquids. Its high water content and relatively high flash point contribute to its lower flammability compared to substances like gasoline or alcohol.

When used and stored correctly, corn syrup poses minimal risk of flammability. However, it’s always important to handle any substance with care and follow proper safety guidelines to prevent accidents.

Updated: December 30, 2023 — 7:33 am