Traceability and Batch Tracking for NZ Food Manufacturers and Processors

Traceability is one of those words that gets thrown around in food safety meetings without anyone stopping to agree on what it actually means. In practice, it’s simple: can you trace a finished product back to its raw materials, and can you trace raw materials forward to every finished product they went into?

If your answer is “probably” or “give me a few hours,” you have a traceability problem. And traceability problems tend to surface at the worst possible time, either during an MPI audit or during a real recall.

This guide covers what NZ legislation actually requires, how batch tracking fits in, what export markets expect, and where most manufacturers get caught short.

What Traceability Means in NZ Food Manufacturing

Traceability in a food manufacturing context means the ability to follow the movement of food through every stage of production, processing, and distribution. It’s not a nice-to-have. It’s a legal requirement under both the Food Act 2014 and the Animal Products Act 1999.

At its core, traceability answers three questions:

1. Where did this ingredient come from? Supplier, batch, date received.
2. What did it go into? Which production batches used this ingredient.
3. Where did the finished product go? Which customers, distributors, or retailers received it.

If you can answer all three quickly and accurately for any product on any given day, your traceability system is working. If you can’t, it’s not.

Legal Requirements Under NZ Law

Food Act 2014 and Food Regulations 2015

The Food Act 2014 takes a risk-based approach. Higher-risk businesses operate under food control plans (FCPs) with more stringent requirements, while lower-risk businesses operate under national programmes. Both require traceability.

Regulation 71 of the Food Regulations 2015 sets out the specific obligations. The operator must have procedures for identifying and tracing food. The information must be accurate and sufficient to allow an effective recall. When MPI requests traceability information, you must provide it within 24 hours, or within a shorter period if specified.

Records must be retained for at least four years. That’s not a suggestion. Four years of traceability records, accessible and legible, for every product you’ve manufactured.

Animal Products Act 1999

If you process animal products (meat, poultry, dairy, seafood, eggs, honey), your traceability obligations sit under the Animal Products Act 1999. Sections 17 and 77C are the key provisions.

Section 17 requires your Risk Management Programme to include procedures for tracing and recalling animal material and animal products. Section 77C provides for regulations relating to tracing and recall, and gives MPI the authority to set specific requirements through Animal Products Notices.

Your RMP must make provision for tracing products that may not be fit for intended purpose and for initiating corrective actions, including recall, when necessary.

One-Up, One-Back vs Full Chain Traceability

NZ food safety legislation is built on the “one-up, one-back” model. This means you need to know:

• One back: Who supplied your inputs. Supplier name, product details, batch or lot identification, quantity, and date received.
• One up: Who you supplied your outputs to. Customer name, product details, batch or lot identification, quantity, and date dispatched.

This is the minimum legal requirement. Every link in the chain holds its own one-up, one-back records, and in theory, MPI can reconstruct the full chain by following the links.

Full chain traceability goes further. It means any party can trace a product all the way back to the farm or origin point. This is increasingly what export markets demand. The EU, UK, China, and several other markets now expect (or are moving towards expecting) end-to-end traceability that goes beyond one-up, one-back.

For domestic-only manufacturers, one-up, one-back is legally sufficient. But if you’re exporting or supplying customers who export, full chain traceability is becoming a practical requirement regardless of what domestic law says.

Batch Tracking and Lot Identification

Batch tracking is the mechanism that makes traceability work on the production floor. Without it, you’re tracing product names and dates at best. With it, you can pinpoint exactly which production run, which raw material lots, and which finished goods are affected when something goes wrong.

What Good Batch Tracking Looks Like

• Unique batch or lot numbers for every production run. No exceptions. If you run the same product twice in one day, they get different batch numbers.
• Raw material lot linking. Every batch record should note which supplier lots went into that batch. If you receive three deliveries of the same ingredient and use them across different production runs, each run’s batch record must specify which delivery was used.
• Finished product linking. Every batch number must map to dispatch records showing where that batch was sent, in what quantity, and when.
• Date coding consistency. Your date codes on finished product must link back to your batch records. If an auditor picks up a product with a date code and asks you to trace it, you should be able to go from date code to batch number to raw materials within minutes.

Common Batch Tracking Mistakes

• Using date codes as batch numbers. Dates are not unique enough. If you run the same product twice in a day, a date code alone won’t distinguish the batches.
• Not recording ingredient lot numbers at the point of use. Recording them at goods-in is half the job. You need to record which lots went into which production batches.
• Relying on memory. “We always use oldest stock first” is not a traceability record. FIFO is good practice, but it doesn’t replace documentation.

Export Traceability Requirements

If you export food products from New Zealand, traceability requirements step up significantly. MPI acts as the competent authority for food exports, and their requirements reflect what overseas markets demand.

Export businesses must meet New Zealand general export requirements plus any market-specific requirements set out in Overseas Market Access Requirements (OMARs). For animal products, the OMAR for each destination country specifies exactly what traceability documentation is needed.

Key export traceability expectations include:

• Full chain traceability from raw material origin to export consignment.
• Export certificates backed by verifiable traceability records. MPI will not issue an official assurance if your traceability records don’t support the claim.
• Digital documentation. Several major markets, including the EU and China, now require or strongly prefer digital traceability records.
• Batch-level segregation. Export product must be traceable at batch level, not just product level. If a batch contains material from a non-approved supplier, that batch cannot be exported under that market’s OMAR.

The MPI export requirements page is the starting point for understanding what your specific markets require.

Traceability and Recalls

Traceability exists for one primary reason: recalls. When something goes wrong, you need to know what’s affected, where it went, and how to get it back. The speed and accuracy of your recall depends entirely on the quality of your traceability records.

Since 1 July 2022, all food businesses operating under a plan or programme must have documented recall procedures and must notify New Zealand Food Safety within 24 hours of making a recall decision.

Since 1 July 2023, annual simulated (mock) recalls are mandatory. MPI’s Simulated Recall Guidance sets out what’s expected. A simulated recall tests your ability to:

• Identify the affected batch or batches.
• Determine the volume of affected product.
• Identify all customers or distribution points that received affected product.
• Account for how much product has been consumed, is in market, or is still in your control.

The benchmark MPI uses is whether you can complete a trace within four hours. If your simulated recall takes longer than that, or if you can’t account for all affected product, that’s a finding.

Common Traceability Gaps in MPI Audits

Based on industry experience and MPI guidance, these are the traceability issues that come up repeatedly during verification visits:

• Incomplete raw material receiving records. Supplier lot numbers not recorded, or recorded inconsistently.
• Missing batch-to-ingredient links. Batch records that list ingredients but not the specific supplier lots used.
• Gaps in dispatch records. Product leaves the site without a corresponding dispatch record linking batch number to customer.
• Rework and reprocessing not traced. Product that gets reworked into a subsequent batch without recording which batches were combined.
• Inadequate date code to batch linking. Auditor cannot go from a product’s date code to a specific batch record.
• Simulated recall failures. The mock recall couldn’t account for all product within a reasonable timeframe, or the exercise was never completed.
• Records not retained for four years. Older records disposed of, lost, or illegible.

Any one of these can result in a corrective action request. Multiple gaps in traceability can lead to increased audit frequency, which means more time and more cost.

Digital vs Paper Traceability

Paper-based traceability works until it doesn’t. The failure mode is always the same: you need to trace a batch, and the information is spread across three different binders, one of which has a page missing, and someone’s handwriting is illegible.

Digital traceability systems solve the structural problems with paper:

• Searchability. Find a batch record in seconds instead of flipping through binders.
• Linking. Batch records automatically link to raw material intake, production logs, and dispatch records.
• Completeness. The system flags missing fields before a record can be saved. No more discovering gaps at audit time.
• Recall speed. A simulated recall that takes a day on paper can take minutes with a digital system.
• Retention. Four years of digital records take up no shelf space and don’t degrade.

Paper is not illegal. MPI doesn’t mandate digital records for domestic operations. But the gap between what paper can deliver and what auditors and export markets expect is widening every year. If you’re still running traceability on clipboards and binders, the question isn’t whether to go digital. It’s when.

How the Custom FCP / RMP App Helps

The Custom FCP / RMP App is built for NZ food manufacturers who need traceability that actually works on the production floor.

Batch and lot tracking is built into the core workflow. When your team records a production run, the app captures raw material lot numbers, production batch numbers, quantities, and timestamps in a single entry. Dispatch records link to batch numbers automatically, so your one-up, one-back chain is always complete.

When it’s time for a simulated recall, or a real one, you can trace from batch to raw materials and from batch to customers in minutes. No binder-hunting. No spreadsheet assembly. The data is already linked.

The app also flags incomplete records before they become audit findings. If a batch record is missing a supplier lot number or a dispatch record doesn’t have a customer reference, the system catches it at the point of entry, not three months later during a verification visit.

For export manufacturers, having digital traceability records that are always audit-ready is becoming a baseline expectation rather than an advantage. The Custom FCP / RMP App puts you on the right side of that shift.