Fire Safety Information

Fire safety advice, information, articles, and videos for businesses and homes.

  • FAQs
  • Contact
  • Delivery
Call Us FreePhone
0800 321 3145
Every Call Answered
  • Fire Extinguishers
    • Shop by Type
      • Water Fire Extinguishers
      • CO2 Fire Extinguishers
      • Powder Fire Extinguishers
      • Foam Fire Extinguishers
      • Fluorine-Free Fire Extinguishers
      • Firexo Fires Extinguishers
      • View All
    • Shop by Application
      • Car Fire Extinguishers
      • Boat Fire Extinguishers
      • Construction Site Fire Safety
      • Petrol Forecourt Fire Safety
      • Home Fire Extinguishers
    • Accessories
      • Extinguisher Stands
      • Extinguisher Trolleys
      • Extinguisher Boxes & Cabinets
      • Wall Brackets & Holders
      • Extinguisher Covers
      • View All
    • Specialised Extinguishers
      • Self-Service P50 Fire Extinguishers
      • Chrome Extinguishers
      • Wet Chemical Fire Extinguishers
      • Lithium-ion Battery Fire Extinguishers
      • Automatic Fire Extinguishers
      • Anti-Freeze Fire Extinguishers
      • Wheeled Fire Extinguishers
    • Fire Extinguisher Maintenance
      • Extinguisher Servicing
      • Extinguisher Disposal
      • Extinguisher Site Survey
    • Savings & Offers
      • Budget Extinguishers
      • Fire Extinguisher Packs
  • Fire Alarms & Detection
    • Smoke Alarms
      • Battery Smoke Alarms
      • Wireless Smoke Alarms
      • 230V Smoke and Heat Alarms
      • Kidde Smoke Alarms
      • Firex Smoke Alarms
      • 2022 Scottish Regulation Alarms
      • Optical Smoke Alarms
      • View All
    • Fire Alarm Systems
      • Fire Alarm Kits
      • Fire Alarm Panels
      • Manual Call Points
      • Smoke Detectors & Bases
      • Sounders & Beacons
      • View All
    • Alarm System Accessories
      • Power Supply Units
      • Fire Alarm Batteries
      • STI Vandalism Stoppers
      • Cables and Fittings
      • Emergency Lighting
      • Alarm & Lighting Servicing
      • Megaphones
    • Standalone Site Alarms
      • Rotary Fire Bell
      • Temporary Fire Alarm
      • Interlinking Fire Alarm
      • Fire Gas Horn
      • View All
    • Carbon Monoxide Detectors
      • Portable Carbon Monoxide Alarm
      • View All
  • Fire Blankets & Welding
    • Fire Blankets
      • Lithium Battery Fire Blankets
      • Economy Fire Blanket
      • Kitchen Fire Blanket
      • View All
    • Popular Fire Blanket Sizes
      • 1.m x 1.m Fire Blanket
      • 1.2m x 1.2m Fire Blanket
      • 1.8m x 1.2m Fire Blanket
      • 1.8m x 1.8m Fire Blanket
    • Welding Blankets
      • Medium-Duty Welding Blankets
      • Extra Heavy-Duty Welding Blankets
      • Extra Heavy-Duty Drape Roll
      • View All
  • Fireproofing & Escape
    • Fire Stopping
      • Intumescent Fire Stopping
      • All Fire and Smoke Seals
      • Fire Stopping for Pipes
      • Fire Stopping for Ducting & Cables
      • Fire Door & Window Products
      • Fire-Rated Sealants & Foams
      • Fire Rated Access Panels & Boxes
    • Door Furniture
      • Fire Door Hardware
      • Door Closers
      • Fire Door Holders
      • Push Bars
      • Panic Bolts
      • Door & Window Hardware
      • Fire Door Signs
      • View All
    • Fire Escape & Routes
      • Fire Exit Signs
      • Keys & Padlocks
      • Fire Escape Ladders
      • Fire-Rated Loft Hatches & Ladders
      • Evacuation Chairs
      • Home Safety Equipment
      • Car Safety Equipment
  • Fire Brigade Hoses & Fittings
    • Fire Hose Equipment
      • Fire Hoses
      • Foam Inductors & Equipments
      • Hose Reels & Spare Parts
      • Nozzles and Branch Pipes
      • Standpipes & Fittings
    • Wet & Dry Risers
      • Dry Risers
      • Breechings & Gate Valves
      • Dry Riser Cabinets
      • Riser Accessories
      • Riser Signage
    • Fire Safety Accessories
      • Fire Buckets
      • Wildfire Equipment
      • Fire Brigade Padlock
      • Fire Brigade Keys
  • Health & Safety
    • First Aid
      • Workplace First Aid Kits
      • Home & Vehicle First Aid Kits
      • Plasters & Other Supplies
      • First Aid Posters
      • First Aid Signs
      • Eye Wash Kits
      • Burns Kits
      • Body Fluid Disposal
    • PPE & Workwear
      • Hi-Vis Workwear
      • Hard Hats
      • Masks & Respirators
      • Workwear Gloves
      • Eye Protection
      • Ear Protection
      • Footwear
      • Fall Protection
      • Flame Resistant Clothing
      • Knee Pads
      • PPE Accessories
    • Workplace Safety
      • Fire Marshal & Wardens
      • Health & Safety Posters
      • Flammable Liquid Storage
      • Spill Kits
      • Anti-slip & Floor Tapes
      • Megaphones
      • Cigarette Bins
    • Safety & Security Lighting
      • Searchlights
      • Hazard Lights
      • Security Lights
      • Head Torches
      • Rechargeable Lights
      • Inspection Lights
    • Ladders
      • Fire Escape Ladders
      • Step Ladders & Work Platforms
      • Extension Ladders
      • Extension Ladders
      • Portable Warehouse Steps
      • Ladder Accessories
      • Little Giant Ladders & Accessories
  • Safety Signs
    • Fire Exit Signs
      • Fire Exit Signs
      • Double-Sided Hanging Exit Signs
      • Emergency Light Stickers
      • Assembly Point Signs
      • Safe Refuge Signs
      • Stairway Signs
    • Fire Safety Signs (Red)
      • Fire Extinguisher Signs
      • Fire Fighting Equipment Signs
      • Fireman & Riser Signs
      • Fire Point Signs
      • Do Not Use Signs
      • No Entry Signs
      • Do Not Do Sign
      • No Smoking Signs
      • View All
    • Prohibition Signs (Yellow)
      • Physical Warning Signs
      • Flammable & Gas Warning Signs
      • Mechanical Warning Signs
      • View All
    • Warning Signs (Blue)
      • Must Do Signs
      • Personal Protection Signs
    • Other Signage
      • All Other Signs
      • Fixing Tapes & Sticky Pads
      • CCTV Signs
      • Disability
      • Welsh Language Signs
      • Table Top Display Signs
      • Breathing Apparatus
  • Traffic Control
    • Shop by Type
      • Speed Bumps
      • Cable Protectors
      • Corner Guards & Wall Protectors
      • Traffic Cones & Toppers
      • EV Charging Safety
      • Traffic Mirrors
      • Car Park Equipment
    • Bestsellers
      • Cable Protector Ramp
      • Cone Chain Connector
      • Floor Cable Protector
      • Heavy-Duty Rubber Wall Guard
      • PU Foam Impact Protectors
      • Telescopic Cone Bar Barrier
      • Plastic Chain
  • Barriers
    • Permanent Barriers
      • Permanent Traffic Barriers
      • Bollards & Hoop Barriers
      • Wheel Stops
      • PU Shelf and Corner Protectors
      • Parking Posts
    • Temporary Barriers
      • Expandable Safety Barriers
      • Retractable Barriers
      • VIP Velvet Rope and Posts
      • Post & Chain Kit
      • Plastic Chain
      • Telescopic Cone Bars
      • View All
    • Temporary Fencing
      • Fencing Mesh (4 colours)
      • Steel Fence Pins
      • Reflective Fence Strips
      • Bunting
  • Clearance
FREE Next Day Delivery Orders over £60 + vat
NEVER Beaten on Price Lowest price guarantee
FREE 100-Day Returns We even collect, no quibbles
Excellent Trustpilot score

What Is A Class F Fire?

Class F Fire

Fire classification systems exist to help people trying to extinguish fires. They allow someone to quickly identify which extinguisher will be best suited to the situation. Fire types are classified according to the fuel which is burning.

This is because different materials don’t burn in the same way. And often, they need an alternative approach to extinguish them.

Understanding the different classifications of fire could save your life and limit the damage caused, especially with a Class F fire.

What Are the Common Causes of Class F Fires?

Fires involving cooking and vegetable oils or fats are Class F fires, and a wet chemical fire extinguisher with an F-rating of 75, for example, is suitable for use on deep fat fryers containing up to 75 litres of oil.

wet chemical fire extinguisher

These types of fire usually occur in kitchens and will involve dangerous temperatures. They often start when the oil or fat is cooking at an extremely high temperature.

Deep fat frying is the most common cause of a fire.

They are the source of 20% of accidental fires at home that the fire service attend every year. So when using oil and fat to cook in a pan or deep fat fryer, you need to be aware of the potential risks.

Preventing a Class F Fire

The safest way to deep fat fry is to use a thermostatically controlled electric fryer. This is what will stop it from getting to a temperature which will cause it to burn. And if you see smoke, it’s getting too hot so immediately turn off the heat. Installing a heat alarm in your kitchen can provide an early warning if things start to overheat and placing an optical smoke alarm just outside the kitchen will detect any smoke from resulting burning or cooking-related fires.

You should also take care to not use too much oil or fat, and never fill a pan more than one-third.

And just like any type of cooking, avoid leaving things cooking unattended or get distracted yourself.

Reacting quickly when you can see things are starting to burn will prevent a fire, and save your dinner.

These are same whether you’re cooking at home, or have a large kitchen as part of your business.

You should be doing everything possible to reduce the risks associated with cooking oils and fats.

Tackling a Class F Fire

A Class F fire is different to a Class B fire because of the heat at which it burns. So when it comes to extinguishing a Class F fire, it is appropriate to use a different method.

If you have a business where a Class F is possible, you might consider training your staff in what to do. Whether cooking using gas or electric, you first need to try and turn off the heat source.

When the fire is small, you might be able to use a fire blanket to put it out. Placing one over a fire in its early stages will smother it of oxygen and prevent a bigger fire.

If that isn’t possible, then the only other safe way of extinguishing the fire is a wet chemical extinguisher.

Never throw water over a Class F fire as this cause it to explode, spreading the fire and risking lives.

The best advice is to get to safety using your emergency evacuation plan, then call the fire brigade.

You should never take unnecessary risks with a Class F fire because of how dangerous they can be.

Click here to see our range of Class F Wet Chemical Fire Extinguishers.

Share this:

  • Click to share on X (Opens in new window) X
  • Click to share on Facebook (Opens in new window) Facebook
  • More
  • Click to email a link to a friend (Opens in new window) Email
  • Click to share on LinkedIn (Opens in new window) LinkedIn
  • Click to share on Reddit (Opens in new window) Reddit
  • Click to share on Tumblr (Opens in new window) Tumblr
  • Click to share on Pinterest (Opens in new window) Pinterest
  • Click to share on WhatsApp (Opens in new window) WhatsApp

Related

Filed Under: Fire Extinguisher Classes

While our articles are reviewed regularly, any changes made to standards or legislation will not have been considered.

If you require further advice, please do not hesitate to contact us on our freephone number 0800 321 3145.

  • Facebook
  • LinkedIn
  • Twitter

Latest posts

CO2 Fire Extinguisher Use: What You Need to Know

Whether you’re fitting out an office, managing a workshop, or simply brushing up on workplace fire … Read More

Wildfire Protection made easy with the Fire Beater and Rakehoe

Wildfire Protection Made Easy: Fire Beater & Rakehoe

With heath and wildfires increasing in the UK due to climate change, being prepared is crucial, … Read More

Photo by Piot Chrobot on Unsplash of a water extinguisher mounted to a wall.

What Is A Water Fire Extinguisher For?

A water fire extinguisher is one of the most common types of fire extinguishers, designed … Read More

Categories

  • Fire Extinguisher Classes
  • Fire Extinguisher Types and Advice
  • Fire Safety and Product Videos
  • Fire Safety Information
  • How To Information
  • How To Use
  • Infographics
  • News Report
  • Newsletter archive
  • UK Fire Regulations

Our Address

Fire Protection Online Ltd
Merlin House, Claremont Way
Lakesview Industrial Park
Canterbury CT3 4BF

Company Reg: 05126014
VAT No: GB 901 8062 54

Help Centre

  • Contact us
  • Terms and conditions
  • Privacy statement
  • Frequent questions
  • About us

Advice and Information

  • How to choose a fire extinguisher
  • Fire Regulations advice
  • General how to information
  • Fire safety info
  • Types of extinguisher

Information

  • 100-Day Free Returns
  • Lowest possible price
  • Delivery details
  • Your shopping cart

Social

  • Facebook
  • LinkedIn
  • Twitter
  • YouTube

Copyright © 2003-2025 Fire Protection Online Ltd

Free Next Working Day Delivery
Lowest Price Guarantee
5 Year Warranty
100 Day Free Returns
We're Rated Excellent
 

Loading Comments...