HACCP validation: The blind spot that certification can cost you
Many companies have a HACCP system — but no validation. Find out why this is critical in an audit and how to do it correctly.
Validation vs. verification — a key difference
Many companies have a HACCP system — and therefore feel they are on the safe side. But practice shows time and again:
Validation is neglected.
The problem: Without validation, there is no proof that your measures actually work under real conditions. And that is exactly what can quickly result in an audit Major variance lead.
A common mistake:
Validation and verification are confused.
- Verification: Continuous monitoring (e.g. temperature measurements)
- Validation: Scientific evidence that a measure is effective
Verification checks whether you're doing it. Validation proves that it works.
Why HACCP validation is so often missing
In many companies, validation is seen as a unique task — for example when introducing a system.
But in reality, things are constantly changing:
- feedstocks
- processes
- machines
- environmental conditions
Without regular validation, your HACCP system becomes acceptance instead of security.
Practical example: Thermal treatment as a CCP
A classic case:
A product is produced at 75°C for 10 minutes heated.
That is in the HACCP plan.
But:
- Has this been tested on a specific product?
- Have worst-case conditions been considered?
- When was the measure last reviewed?
If you can't answer these questions, you have a problem — at least during the audit.
How to improve your HACCP validation
- Think in worst-case scenarios
Test under realistic loads (e.g. higher bacterial load) - Validation is not a one-time project
Regular inspection is mandatory - Documentation is critical
Auditors want to see reliable evidence - Focus on product safety — not audit
Validation is not for certification, but for safety
The most important question for your company
“Could we prove tomorrow that our measures really work? ”
If the answer is “no”: ACTION IS REQUIRED.
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Publications & Technical Papers
Practical experience — passed on in specialist literature, training courses and contributions on food safety.
Director Food Safety Senior Experts, Microbiologist & Food Safety Expert
With decades of experience in audits, quality management and crisis situations, she combines scientific principles with operational practice. Her publications make complex topics such as HACCP, food safety culture and risk analysis understandable and directly applicable. For companies that not only pass certifications, but also want to sustainably improve their systems.
