When business owners map out their fire safety strategies, their minds immediately jump to large red fire extinguishers and ceiling-mounted smoke alarms. While those are vital components, there is a smaller, incredibly powerful tool that frequently gets overlooked: the humble fire blanket.
If your business features a commercial kitchen, a restaurant cooking line, or even just a standard staff lunchroom with a toaster or hot plate, fire blankets are a crucial line of defense. Here is what you need to know about using and maintaining them.
What is a Fire Blanket and How Does It Work?
A fire blanket is a highly flame-resistant sheet of material—usually made of woven fiberglass—designed to smother small, developing fires.
Instead of spraying a chemical agent that might cause cooking oil to splatter, a fire blanket is gently dropped completely over the flames. By sealing off the area, it instantly cuts off the supply of oxygen, suffocating the fire quickly and cleanly before it can spread to cabinetry or ductwork.
Where Are Fire Blankets Legally Required?
Under New Zealand standard NZS 4503, fire blankets are required in areas where cooking oils, fats, or flammable liquids are used. They are common fixtures in:
Commercial kitchens, cafes, and restaurants.
School home-economics rooms and daycare kitchenettes.
Office staffrooms and factory lunchrooms.
Industrial workshops where small flammable liquid hazards exist.
To remain compliant, blankets must be mounted in a highly visible location, close to the cooking hazard, but far enough away that an employee can safely reach it without reaching through the flames.
The Inspection Routine: What We Look For
Just like fire extinguishers, fire blankets cannot simply be hung on a wall and ignored. They require regular inspection to ensure they are ready for deployment in an emergency. During a routine safety check, a certified technician inspects:
Accessibility: Ensuring the quick-release tabs are exposed, pointing downwards, and completely unobstructed by towels, boxes, or kitchen clutter.
Container Integrity: Checking that the outer casing isn’t cracked, broken, or glued shut.
The Blanket Condition: Periodically removing the blanket to check for physical damage, fraying, oil contamination, or insect infestations that could compromise its fire-retardant capabilities.
A One-Use Lifesaver
It is important to remember that fire blankets are strictly single-use safety items. Once a blanket has been deployed onto a fire, the fibers are exposed to intense heat and chemical degradation. Even if it looks completely intact afterward, it must be disposed of and replaced immediately to ensure your kitchen remains fully protected.