PREVRA 5 Whys Root Cause Analysis Template: Find the Real Cause Behind Every Food Safety Failure
A structured investigation tool that stops you treating symptoms instead of causes. Required approach under HACCP for all corrective actions in UK food businesses.
Why root cause analysis matters for food safety management
When something goes wrong in a kitchen — a fridge failure, an allergen near-miss, a pest sighting — the instinct is to fix the immediate problem and move on. That is how the same incident happens again three weeks later.
The 5 Whys method forces you to drill past the surface. A fridge was too warm. Why? The door seal was damaged. Why? No one checks seals on the weekly walk-round. Why? There is no checklist item for it. By the fifth why you have found a management system gap, not a one-off equipment fault.
Your EHO will expect to see root cause analysis documented after any significant food safety incident. This template gives you a repeatable format your whole team can use.
Using the 5 Whys template in your HACCP corrective action process
Start with the incident stated clearly at the top. Ask "why did this happen?" and write the answer. Then ask "why?" to that answer. Repeat until you have asked why five times — or until you reach a root cause that is a process or system failure, not a person.
Common mistake: stopping at "someone made an error". That is never the root cause. Ask why the error was possible — missing training, unclear procedure, time pressure from understaffing.
Attach the completed 5 Whys to your corrective action log. Prevra users can link root cause analyses directly to digital incident records, creating a single audit trail the EHO can follow from incident to preventive measure.
Pitfalls to avoid when running a 5 Whys investigation
The most common error is asking "who?" instead of "why?". Root cause analysis is about systems, not blame. If your answers keep pointing at individuals, you have not gone deep enough.
Another trap: stopping too early. "The chef did not check the temperature" is not a root cause. "There is no written procedure requiring a temperature check at that step" gets closer. Keep drilling.
Run the analysis within 24 hours of the incident while details are fresh. Involve the people closest to the work — they know what actually happens versus what the procedure says should happen. For related templates, see our HACCP Plan Template and corrective action logs.
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