A critical control point is a step where control can be applied and is essential to prevent, eliminate or reduce a food safety hazard to an acceptable level. The two words that do the work are essential and applied: a step is not critical because it matters, it is critical because losing control there means the hazard reaches the customer and there is nothing later that would catch it.
How critical control points for food safety are identified
Work along the process flow and ask, at each step, whether a hazard is controlled here and whether a later step would control it instead. If a later step would, this one is not critical. Cooking is usually critical because nothing after it kills the pathogen; chopping is usually not, because cooking follows.
Setting the critical limit
Each control point needs a limit that separates safe from unsafe and can be measured on the shift: a core temperature, a time, a pH, a visual state. A limit nobody can check during service is not a limit, it is an aspiration.
Monitoring and corrective action
Who checks, with what, how often, and what they do when the limit is missed. The corrective action is decided in advance and written down, because the moment a limit fails is not the moment to start deciding whether to serve the food.
Recording without inventing
Records are the evidence the system ran. They should be completed at the time by the person who did the check. A week of identical readings entered on Friday is the pattern inspectors are trained to spot and it undermines everything else in the file.
Questions people ask about critical control points
What is a CCP in food safety?
A critical control point: a step where control is essential to keep food safe and where a measurable limit can be applied and monitored.
How many CCPs should a kitchen have?
Usually few. Cooking, hot holding, chilling and sometimes cooling cover most kitchens. A long list normally means control points that are important but not critical have been included.
What is the difference between a CCP and a prerequisite?
Prerequisites are the good practices that must be in place for the system to work at all, such as cleaning and pest control. CCPs are the specific steps in the process where a hazard is controlled and measured.
Why is it said that HACCP is a way of managing food safety hazards?
Because it is a system rather than a set of rules: you identify the hazards in your own process, find the points where control is critical, set a limit at each one, monitor it, say what you do when it goes out of limits, verify that the whole thing works, and keep records. That is why the law requires a food business to have procedures based on HACCP principles rather than a prescribed checklist, and why a small caterer can satisfy it with a simple documented pack while a manufacturer needs a full study. The parts most often missing are the corrective action and the records, which are the two that prove it was running.
How do you set HACCP critical control points without overdoing it?
By being strict about the word critical. A control point becomes critical only where losing control would leave a hazard that nothing later in the process removes, which in most kitchens is a short list: cooking temperature, hot holding, chilling and cold storage, and sometimes a wash step for ready to eat produce. Everything else is a good practice control that belongs in the four Cs rather than a monitored limit with records. A study with fifteen critical points produces fifteen sets of records that nobody keeps, which is worse than five that are real, because the gaps are the evidence.