HACCP Hazard Analysis NZ: Explain Why a Hazard Needs Control

A useful HACCP hazard analysis in NZ explains why the team reached its decisions. A row marked “low risk” or “controlled” is difficult to review if it does not identify the hazard, the route by which it could affect food, or the evidence behind the conclusion.

This guide is for a team developing or reviewing the rationale within its study. It focuses on that reasoning, rather than the complete plan-development sequence, a list of universal hazards or a finished control specification. First confirm the requirements applying to your business and what its existing plan or template already supplies.

Start with the product and process you are actually assessing

MPI’s HACCP overview places hazard analysis within a system supported by effective good operating practice. The documentation and any formal assessment depend on your applicable programme, sector and customer requirements. This article does not decide that every operator needs a separately purchased HACCP plan.

Before reviewing a row, identify the product or justified product group, current recipe, intended users, storage, use and relevant process step. Use a flow that matches the operation, including relevant inputs and outsourced activities. If the study groups products, make the grouping basis visible; a shared brand or similar name does not establish equivalent hazards.

Keep the wider HACCP plan-development guide available for the overall sequence. Here, choose one hazard-analysis decision and ask whether another competent person could follow it without relying on the author’s memory.

Write a hazard statement that identifies the agent and route

Name the biological, chemical or physical concern at a useful level of detail, including relevant allergen concerns. Connect it to a source or mechanism: introduction with an ingredient, transfer during handling, survival through a process, growth during storage, or another relevant route. “Contamination” alone does not describe which concern the team has assessed.

FAO’s hazard-analysis guidance distinguishes identifying potential hazards from deciding which are significant for the particular operation. It also recognises that some hazards can be addressed through hygiene programmes while others need controls within the process. Listing a concern does not, by itself, determine its significance or make the step a CCP.

For an illustrative writing exercise, “physical hazard” is less informative than “metal fragments entering food from a damaged cutting component at the chopping step”. That wording identifies a question to investigate. It does not establish that a particular line has that hazard, how likely it is, or which control is adequate. Use actual information before reaching those conclusions.

Explain significance before relying on a score

The Codex General Principles of Food Hygiene, section 19.6 describes a context-specific assessment: consider relevant hazard information, occurrence with prerequisite programmes taken into account but without additional control, and the likelihood and severity of adverse health effects in the absence of control. Intended use and known unintended use also matter. Codex is international guidance, not a replacement for New Zealand requirements.

Avoid circular reasoning such as “not significant because our proposed cook step kills it”. That statement uses the measure being selected as the reason to dismiss the need for control. Explain the starting situation and the contribution of existing prerequisites, then identify the additional measures needed. Have a competent reviewer resolve assumptions about their effectiveness.

If your system uses numerical ratings, retain the definitions, method and reasoning behind each rating. A number is a summary of the assessment, not its evidence. This article supplies no universal likelihood scale, severity score or cut-off that determines a significant hazard for every product.

The US FDA-hosted HACCP application guidance also explains that comparable foods can have different conclusions in different facilities, and recommends retaining the team’s rationale. Its technical discussion is useful context; it is not New Zealand law or a requirement to use its example worksheet.

Build a short record another reviewer can follow

We recommend the following fields within your existing worksheet or linked narrative. They organise the decision; they are not an official form, a complete hazard analysis or permission to omit information required by your actual system. Keep source documents accessible through stable references.

On a small screen, swipe sideways to view all columns. Keyboard users can focus the table region to scroll horizontally.

A source reference should explain its relevance. “Supplier documents held” is not enough if the cited specification does not cover the ingredient actually purchased. Similarly, an absence of complaints or a small set of favourable results should not silently become proof that the hazard cannot occur. State what the available information establishes and what it leaves uncertain.

Connect the rationale to hygiene controls and CCP decisions

Keep the significance assessment and the decision about where control is applied identifiable. FAO’s CCP guidance explains that a decision tree can help and that process steps should be considered alongside prerequisite hygiene programmes. A completed tree is an aid to competent judgement, rather than an independent source of product facts.

Write down the actual measures relied on and where they operate. One hazard may require several measures, and one measure may address several hazards. Do not call every inspection, training activity or record a CCP merely because it contributes to the system. Conversely, naming a hygiene procedure does not demonstrate that it adequately addresses the particular hazard.

If the review identifies a significant hazard without an adequate measure, keep that gap visible and obtain the technical assessment needed to change the product or process. Do not resolve it by lowering a rating to fit the available equipment. Critical limits and validation are further tasks; the separate HACCP validation evidence-file guide explains how to organise support for an existing control.

Challenge the assumptions before closing the row

Ask someone with the necessary product and process knowledge to test the reasoning. Can they identify the evidence for the ingredient, operating conditions and intended use? Would a different shift, pack, storage condition or consumer group change the assessment? Record disagreement as a technical question to resolve, not an inconvenience to remove from the file.

Hypothetical review prompt: a study assumes the consumer will apply a further heat treatment, while the sales information suggests the food can be eaten directly. That mismatch calls for clarification of actual intended and known use and its effect on the analysis. It supplies neither a hazard conclusion nor a treatment instruction.

Where information is missing, name the unanswered question, the person obtaining it and the next assessment. A provisional rating must remain recognisable as provisional. If a current food safety concern is found, follow the applicable operational response promptly; completing the study must not delay action on affected food.

A final rationale-review checklist

1. The product, process step and study version are identifiable.
2. The hazard statement names the concern and its relevant source or route.
3. The significance explanation addresses the actual context and assessment assumptions.
4. Prerequisites and additional controls have not been confused.
5. Evidence references are relevant, retrievable and qualified where necessary.
6. Control and CCP decisions can be followed separately from the rating.
7. Open questions have owners; the record does not imply a completed assessment where one is missing.

Common mistakes are repeating a generic hazard list, using a score without reasons, copying another site’s conclusion, dismissing a hazard because the proposed control is expected to work, and recording “reviewed” without saying what was examined. Correct the reasoning and evidence rather than making every row look equally complete.

Frequently asked questions

Does every potential hazard become a CCP?

No. Potential-hazard identification, significance assessment and CCP determination are related decisions with different purposes. Work through them for the actual operation and retain the reasoning.

Can we use an industry example?

It can help identify questions, but check its product, process and assumptions against your own operation. Do not present someone else’s completed analysis as your site-specific assessment.

Is a numerical matrix compulsory under this guide?

No matrix is prescribed here. Use the method required or appropriate for your system, and make its definitions and rationale clear. A numerical result does not replace evidence or competent judgement.

Does an unresolved row mean we should invent a conservative answer?

Record the uncertainty and obtain suitable assessment. Use the applicable procedures for any current operational concern. This article does not supply production or release authority.

Prepare a focused hazard-analysis consulting enquiry

AFVA’s published HACCP service includes hazard-analysis and control-measure review. Send the current study, product description, relevant flow, evidence references and a short explanation of the decision your team cannot yet support. Identify whether you need a defined review, new technical information or help implementing the eventual decisions.

Agree scope and specialist responsibilities before work starts. Consulting does not certify a plan or guarantee acceptance. MPI’s food-consultant guidance explains that a consultant who writes a plan or programme cannot evaluate or verify that same work; arrange the appropriate independent functions separately.

Sources and scope

Sources were read on 1 November 2026. The suggested working records and review questions are AFVA recommendations, not official forms.

• MPI: HACCP overview — New Zealand context and links to programme-specific requirements.
• FAO: conducting a hazard analysis — Technical context for identifying and evaluating hazards.
• FAO: determining critical control points — Relationship between controls, hygiene programmes and CCP decisions.
• FAO/WHO: General Principles of Food Hygiene, CXC 1-1969 — 2023 publication incorporating the 2022 revision; sections 19.6–19.7 and 19.12.
• FDA: HACCP Principles and Application Guidelines — US technical guidance on rationale; not New Zealand law.

General information only: Requirements depend on the complete food activities, products, processes, locations and sales model. Use current official guidance and confirm the requirements applying to the specific business before relying on a classification, timeframe or record list.