Batch traceability: what a lot number should tell your quality team
Traceability is often reduced to a number printed on a bag. For a feed manufacturer it is something more practical: the ability to answer, within hours, which raw material went into which finished lot, and where that lot went.
What a lot number should connect
A meaningful batch identity links four stages:
- Raw material – supplier, origin, intake documentation and the checks performed on receipt.
- Production – process records for the run: drying parameters, size reduction, pelletising.
- Finished lot – the analyses performed and the release decision taken against the agreed specification.
- Dispatch – packing, labelling and the delivery the goods left on.
If any link is missing, a recall becomes a guess about quantities rather than a targeted action.
The test is a question, not a document
When qualifying a supplier, pick a lot number from a delivery you already received and ask what raw material it came from and on what date it was released. The speed and precision of the answer tells you whether the records are a working system or a folder assembled for audits.
Why it matters commercially
Traceability shortens the width of a problem. If a parameter drifts outside specification, a supplier with defined lots can tell you exactly which deliveries are affected. Without that, the safe assumption is that everything received in the period is suspect, and the cost of caution lands on your production plan.
What to agree before the first delivery
- which documents accompany each batch as standard, and which are available on request
- how long production and analytical records are retained
- the contact route for a quality question, and the expected response time
- how a change of raw material origin is communicated
None of this requires a certification logo to be useful. It requires a supplier who can describe their own process without hesitation, and who applies the same batch identity to a 25 kg sample bag as to a bulk delivery.