How To Keep Food Cold When Fridge is Broken

Your fridge has just died. Maybe it happened overnight. Maybe a fuse tripped mid-service. Either way, the clock is ticking and you have got a fridge full of high-risk food that is warming up fast.

Here is the good news: if you act quickly, you can save most of your stock. But you need to know exactly what to do, what the law says, and when food must be thrown away.

Let me walk you through it.

How Long Will Food Stay Cold in a Broken Fridge?

This depends on one thing: whether the door stays closed.

A fridge with the door firmly shut will hold a safe temperature for roughly four hours after it stops working. That applies whether the compressor has failed, a fuse has blown, or the power is out.

A freezer holds temperature much longer. A half-full freezer stays cold for around 24 hours. A fully stocked freezer can hold for up to 48 hours, because the frozen items act like ice packs for each other.

But here is what most people miss: every time you open the door, you lose cold air fast. One quick check to grab something might cost you an hour of safe temperature. So resist the urge to keep checking. Leave the doors closed and focus on your plan.

Emergency Steps to Keep Food Safe

Keep Doors Closed

I know it is tempting to open the fridge and start pulling things out straight away. Do not.

Your first move should be to leave the doors shut and assess the situation. Is it a power cut? A tripped breaker? A mechanical failure? If you can fix the cause quickly (resetting a fuse, for example), your food may never leave the safe zone.

If the fridge is genuinely broken and will not be working again soon, then it is time to act.

Move High-Risk Stock to Working Cold Storage

Prioritise high-risk foods first. That means raw meat and poultry, dairy products, cooked dishes, prepared salads, sandwiches, and anything containing cream or eggs.

Move them to:

• A working fridge or fridge-freezer
• A walk-in cold room (if you have one)
• A chest freezer with space
• A blast chiller, if your kitchen has one

If you are a food business with multiple units, redistribute stock across your working equipment. Speed matters here.

Use Coolers, Ice, and Chilled Display Units

No spare fridge space? Use what you have.

Cool boxes packed with ice packs or bagged ice will keep food cold for several hours. Layer ice at the bottom and top, with food in between. Keep the lid closed.

If you run a commercial kitchen, chilled display units can work as temporary holding for smaller items. They are not designed for long-term bulk storage, but they will buy you time.

Pack food tightly together. Closely packed items hold their temperature better than items spread out with air gaps between them.

Check and Record Temperatures with a Probe

This is not optional, especially for food businesses.

Use a calibrated probe thermometer to check the core temperature of your high-risk foods. Record every reading: the time, the temperature, and the food item.

Why? Because if an Environmental Health Officer asks what happened during your fridge breakdown, those records are your evidence. They show you took control of the situation.

We will come back to why this matters for HACCP in a moment.

Know the UK Legal Temperature Limits

In England, Wales, and Northern Ireland, high-risk chilled food must be stored at or below 8 degrees C. That is the legal maximum under the Food Safety and Hygiene (England) Regulations 2013.

Scotland works a little differently. The Food Hygiene (Scotland) Regulations 2006 do not set the same fixed 8 degrees C figure, but the practical guidance is the same: keep high-risk chilled food properly cold, ideally at 5 degrees C or below.

Best practice, recommended by the Food Standards Agency, is to keep your fridge at 5 degrees C or below.

The gap between those two numbers matters. Anything between 8 degrees C and 63 degrees C is the bacterial danger zone, where harmful bacteria can multiply rapidly. A broken fridge can push food into that danger zone faster than you might think.

The FSA Time-Based Rule

Here is something many food handlers do not realise.

Under UK food safety regulations, chilled food can be kept out of temperature control for a single period of up to four hours for service or display. If it has been out for less than four hours, you can return it to the fridge and keep it at 8 degrees C or below until it is used. Once the four hours are up, the food must be used or thrown away. It cannot go back in the fridge.

Best practice? Keep high-risk food out of refrigeration for the shortest time possible. The FSA’s Safer Food, Better Business guidance recommends keeping quantities small and replenishing regularly.

During a fridge breakdown, this four-hour window is your safety net. But it is not an excuse to relax. Start the clock as soon as your food rises above 8 degrees C and plan accordingly.

When You Must Throw Food Away

This is the part nobody likes. But it is important.

You cannot rely on how food looks or smells. The bacteria that cause food poisoning (Salmonella, E. coli, Listeria) do not always change the appearance, smell, or taste of food. Something can look perfectly fine and still make people seriously ill.

Throw food away if:

• High-risk food has been above 8 degrees C for an extended period and you have no temperature records to prove otherwise
• You do not know how long the fridge has been broken
• Food has been in the danger zone (8-63 degrees C) without monitoring

If in doubt, throw it out. The cost of wasted stock is always less than the cost of a food poisoning outbreak, an EHO investigation, or a damaged reputation.

Fridge Failure and Your HACCP Plan

If you run a food business, chilled storage is almost certainly a Critical Control Point (CCP) in your HACCP plan. That means a fridge breakdown is not just an inconvenience. It is a loss of control at a CCP.

Under retained EU law (Regulation (EC) 852/2004), every food business must have corrective actions in place for when monitoring shows a CCP is not under control. A broken fridge triggers exactly that.

You need to record:

• What happened (the fridge failed)
• What you did about it (moved stock, checked temperatures, discarded unsafe food)
• Who was responsible
• The outcome

This is not paperwork for the sake of it. This documentation is your due diligence defence. If something goes wrong and you face an investigation, those records prove you acted responsibly.

A historical UK study found that 60% of small food businesses were using domestic refrigerators for commercial purposes, and only 40% had temperature probes (Taylor, 2001). Domestic fridges are more prone to temperature fluctuations and breakdowns. If your business relies on one, your HACCP plan needs to account for that risk.

Understanding HACCP and corrective actions is covered in our Level 2 HACCP course, which walks you through setting up and maintaining a HACCP system for your food business.

How to Prevent a Fridge Emergency

The best fridge emergency is the one that never happens. Here is how to stay ahead of it.

Install temperature alarms. Modern remote monitoring systems alert you by phone or email the moment a fridge drifts above your set threshold. They can catch a failing compressor overnight, before your morning team arrives to find warm stock.

Check temperatures at least twice a day. Record readings at the start and end of each day (or each service). An FSA-commissioned study found that food businesses with established daily temperature check routines were significantly more likely to keep their fridges within the recommended 0-5 degrees C range. Yet a notable group of businesses only checked “every few days.”

Schedule planned maintenance. Fridges and freezers are mechanical equipment. They need servicing. A regular maintenance schedule catches worn seals, struggling compressors, and blocked vents before they cause a full breakdown.

Write a contingency plan. Document what your team should do if a fridge fails. Who do they call? Where does stock go? What gets discarded and what gets saved? When everyone knows the plan, the response is faster and calmer.

A Quick Note for Home Kitchens

The same principles apply at a smaller scale.

Keep a fridge thermometer and check regularly that your fridge is at 5 degrees C or below. If your fridge breaks at home, prioritise eating or freezing perishable items quickly. Use cool bags with ice packs for anything that needs to stay cold while you sort out a repair or replacement.

Keep Your Team Prepared

A fridge breakdown does not have to mean a food safety disaster. If you or your team know the rules, act quickly, and keep proper records, you can protect your customers and your business.

Temperature control, HACCP corrective actions, and food safety law are all covered in our accredited training courses. Our Level 2 Food Hygiene course covers the essentials of safe temperature management, and our Level 2 HACCP course goes deeper into setting up critical control points and corrective actions.

Get CPD-accredited, EHO-approved online training from Essential Food Hygiene. Instant digital certificates. Bulk discounts for teams. View our courses.