Fire blankets are an essential part of any fire safety kit, especially in kitchens, workshops, and small commercial spaces. But like any safety equipment, fire blankets raise an important question:
Do they expire?
In this blog, we’ll explain everything you need to know about fire blanket lifespan, how to check if yours is still safe to use, and when to replace it.
What Is a Fire Blanket?
A fire blanket is a safety device made from fire-resistant materials, usually woven glass fibre. It works by smothering a fire, cutting off the oxygen supply to extinguish the flames.
Fire blankets are ideal for:
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Pan fires (e.g. chip pans or frying oil)
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Clothing fires
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Small, contained surface fires
They’re especially useful in kitchens, caravans, workshops, and anywhere you cook or use flammable materials.
Do Fire Blankets Expire?
Yes, fire blankets can expire — or more accurately, they can become unsafe to use over time.
While many fire blankets don’t have a fixed expiry date printed on them like food or medicine, manufacturers typically recommend replacing them every 5 to 10 years, depending on the make and model.
The condition of the fire blanket and its storage environment also play a major role. Over time, the materials can degrade, especially if exposed to:
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Moisture
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Extreme temperatures
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UV light
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Dust or contaminants
This degradation can reduce the effectiveness of the blanket in a real emergency.
How to Check the Condition of Your Fire Blanket
Here’s a quick checklist to help you inspect your fire blanket:
✅ Check the label for a manufacture date or expiry recommendation
✅ Look for signs of wear on the packaging — cracks, splits, or faded labels
✅ Ensure the seal is intact and hasn’t been tampered with
✅ Open and visually inspect the edges of the blanket (if recommended by the manufacturer) for fraying or contamination
✅ Review the instructions — they should still be clear and legible
If the blanket looks damaged, dusty, or has been exposed to damp or heat, it’s best to replace it immediately — even if the expiry date hasn’t been reached.
Can You Reuse a Fire Blanket?
No — fire blankets are single-use safety devices.
Once deployed on a fire, even if it appears undamaged, it should be safely disposed of and replaced. The heat exposure, smoke, and potential contaminants will affect its future performance.
Where Should You Store a Fire Blanket?
To prolong the life of your fire blanket, it should be:
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Stored in a clearly marked wall-mounted container
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Kept in a clean, dry, and accessible location
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Installed near potential fire hazards (e.g. cookers, deep fryers) but not directly above them
Avoid storing fire blankets in damp sheds, near hobs, or anywhere prone to temperature swings.
When Should You Replace a Fire Blanket?
As a general rule:
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Replace your fire blanket every 5 years (or as per manufacturer guidelines)
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Replace it immediately if it’s used or shows signs of damage, mould, or wear
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Don’t wait until your next inspection — if in doubt, swap it out
If you’re a landlord, employer, or responsible person under the Regulatory Reform (Fire Safety) Order 2005, keeping up with blanket replacements is part of your legal duty to maintain effective fire safety equipment.
Final Thoughts
Fire blankets are a simple but powerful fire safety tool, but only if they’re in good condition. While they may not “expire” like food or batteries, they do have a limited service life and should be inspected and replaced regularly.
By making fire blanket checks part of your routine fire safety plan, you’ll be better prepared to act quickly and effectively in an emergency.
For expert advice on fire protection and prevention measures, contact Martyn Young Fireproofing Consultancy on 07585 896648