Where the traceability chain actually breaks on a food line
The chain rarely breaks at goods in or at despatch. Those are the two points everybody watches. It breaks in the middle, at the places where identity is deliberately merged or split. A bulk tank that receives three deliveries in a week. A blending step where four ingredient lots become one intermediate. Rework returned into a later batch. A pallet broken down so part of it can ship early. Every one of those is a legitimate operation, and every one of them destroys the tidy one to one link the paperwork quietly assumes.
What fixes it is deciding, stage by stage, what the traceable unit is and stating openly where identity is merged. A silo or bulk tank carries a running lot with a documented changeover point. Rework is given its own lot number and a record of which batch it was later consumed into. Packaging, printed film and labels are lotted alongside ingredients, because a wrong allergen declaration is a recall even when the food inside the pack is exactly right, and packaging is the component most often left outside lot control.
One step back and one step forward, the principle set out in European Regulation 178/2002 Article 18 and mirrored in most export markets, is the legal floor. It is not enough to survive an incident. Internal traceability is what joins the two ends together. Without it you can name the supplier who delivered and the customer who received, but not which of your own batches is implicated, so the recall widens to cover everything produced that week and the commercial damage is decided by an absence of data.
- A defined traceable unit at every stage, with a stated rule wherever identity is merged
- Silos and bulk tanks carrying a running lot and a documented changeover point
- Rework given its own lot identity and a record of the batch it was consumed into
- Packaging, labels and printed film lotted on the same footing as ingredients
- Internal traceability built out, not just the legal minimum of one back and one forward