The first step in a HACCP plan is conducting a hazard analysis. This is Principle 1 of the seven HACCP principles, and it involves identifying every biological, chemical, and physical hazard that could make food unsafe at each stage of production. Before you can get to that analysis, though, there are several preliminary tasks that lay the groundwork, starting with assembling a qualified HACCP team.
Preliminary Tasks Come Before the Seven Principles
HACCP is built on seven core principles, but the FDA guidelines make clear that developing a plan begins with groundwork that happens before Principle 1 kicks in. The very first task is assembling a HACCP team with the right mix of knowledge and experience. This team is responsible for building the entire plan, so getting its composition right matters more than most people expect.
According to FDA guidelines, the team should be multidisciplinary, drawing from areas like engineering, production, sanitation, quality assurance, and food microbiology. Local personnel who work directly in the operation should be included because they understand the day-to-day variability and limitations of the process better than anyone. This also creates a sense of ownership among the people who will actually carry out the plan. For smaller operations that lack in-house expertise, outside consultants knowledgeable in biological, chemical, and physical hazards can fill the gaps.
After the team is formed, the preliminary tasks continue: describing the food product and its intended use, constructing a flow diagram that maps every step in the process from raw materials to finished product, and then verifying that flow diagram by walking the actual production floor. Only after all of this groundwork is complete does the team move into the seven principles.
Principle 1: Hazard Analysis
Hazard analysis is the formal first principle and the intellectual core of the entire HACCP plan. The goal is to look at every step in your process flow diagram and ask two questions: what could go wrong here, and how likely is it to actually happen?
The team considers three categories of hazards:
- Biological hazards: bacteria like Salmonella or Listeria, viruses, parasites, and other organisms that can cause foodborne illness.
- Chemical hazards: cleaning agents, pesticide residues, allergens, naturally occurring toxins, and any chemical that could contaminate the product.
- Physical hazards: foreign objects like metal fragments, glass, bone, or plastic that could injure a consumer.
For each hazard identified, the team evaluates two things: the severity of the harm it could cause and the likelihood that it will actually occur. A hazard that is both severe and reasonably likely to happen is considered “significant” and must be addressed by a control measure later in the plan. A hazard that is theoretically possible but extremely unlikely in your specific operation may not require a dedicated control point.
How the Hazard Analysis Works in Practice
The team typically works through the process flow diagram step by step. At each stage, receiving raw ingredients, storage, mixing, cooking, cooling, packaging, they list every potential hazard and the conditions that could cause it. For a cooked meat product, for example, the cooking step is where you address the risk of surviving pathogens, while the cooling step is where bacterial regrowth becomes the concern.
This is not a quick exercise. The team draws on ingredient data, historical records of contamination events, scientific literature, and their own operational experience. They also consider how the end consumer will use the product. A ready-to-eat food carries different risks than a product the consumer will cook thoroughly at home, because there is no final kill step after it leaves your facility.
The output of the hazard analysis is a written document listing each significant hazard, the step in the process where it occurs, and the control measure that will prevent, eliminate, or reduce it to a safe level. This document becomes the foundation for every principle that follows, particularly Principle 2, which determines which of those steps qualify as critical control points.
The Seven Principles in Sequence
Understanding where hazard analysis fits is easier when you see the full framework. The seven HACCP principles, in order, are:
- Principle 1: Conduct a hazard analysis
- Principle 2: Determine the critical control points (CCPs)
- Principle 3: Establish critical limits for each CCP
- Principle 4: Establish monitoring procedures
- Principle 5: Establish corrective actions
- Principle 6: Establish verification procedures
- Principle 7: Establish record-keeping and documentation
Each principle builds directly on the one before it. You cannot identify critical control points (Principle 2) without first knowing which hazards are significant. You cannot set critical limits (Principle 3) without knowing which points need controlling. The hazard analysis is the first domino, and if it is incomplete or inaccurate, every step that follows will have gaps.
Why the First Step Matters Most
A weak hazard analysis is the single most common reason HACCP plans fail in practice. If your team misses a significant hazard, no monitoring procedure or corrective action downstream will catch it, because no one built a control point for it in the first place. Conversely, identifying too many hazards as “significant” when they are not creates unnecessary critical control points that waste resources and dilute focus from the risks that genuinely matter.
This is exactly why the FDA emphasizes that the HACCP team needs specific product and process knowledge. A hazard analysis is only as good as the expertise behind it. The team should revisit it whenever something changes: a new ingredient, a new supplier, a modification to equipment, or a shift in how the product is distributed or stored. The Codex Alimentarius Commission, which sets international food safety standards, has continued to update and align its HACCP guidance with revised general principles of food hygiene, reinforcing that hazard analysis is a living process rather than a one-time paperwork exercise.