HACCP is based on seven key principles that together form a robust framework for managing risks in the food preparation process. In this guide, each principle is broken down into practical steps, specifically useful for school kitchens. The guide aims to translate theory into everyday practice, so that staff can easily follow clear rules while understanding why these rules are important.
1) Hazard Analysis. First, gather information about menus, ingredients, suppliers, and procedures. Biological risks include bacteria (e.g., Salmonella), viruses, or molds. Chemical risks encompass cleaning residues or allergens, while physical risks involve foreign objects such as metal particles or plastic pieces. Hazard analysis should be realistic and based on kitchen experience, past incidents, and guidelines.
2) Determine Critical Control Points (CCP). CCPs are points in the process where the risk can be effectively managed. In schools, these often include cooking temperatures, rapid cooling, maintaining serving temperatures, and receiving goods. Use a decision tree to systematically determine whether a point is truly critical.
3) Establish Critical Limits. For each CCP, set a measurable limit that distinguishes safe from hazardous. Examples: the core temperature of cooked dishes ≥ 75 °C, refrigerator 0–5 °C, freezer ≤ −18 °C, cooling from 60 °C to 10 °C in 2 hours. Limits are based on scientific evidence and guidelines and must be achievable in daily practice.
4) Establish Monitoring Procedures. Monitoring involves routine measurements and observations to check whether CCPs stay within limits. This can include measuring temperatures with calibrated thermometers, visual inspection of packaging, and handling of food. Monitoring records serve as evidence, so they must be legible, time-stamped, and signed.
5) Establish Corrective Actions. When a measurement shows deviation, one must know what to do. Example: if the core temperature is too low, extend cooking and re-measure; if the refrigerator is too warm, relocate food, adjust settings, call a technician, and document actions. The key is that actions are not just ad hoc but predefined.
6) Verification. Verification confirms that the system is working. It includes internal audits, record reviews, comparing test results, thermometer calibration, and occasional external analyses. The purpose of verification is not punishment but system improvement. It is good to plan an annual verification schedule with specific dates and responsible persons.
7) Documentation. Without documentation, there is no evidence. Documents link everything: hazard analyses, procedure descriptions, monitoring checklists, laboratory test results, corrective action records, and verification reports. In schools, it is important that documents are simple, clear, and in one place—digital forms and report generators are a big help.
When implementing these principles, pay attention to proportionality. An overly extensive system is unusable, while an underdeveloped one is ineffective. In practice, it is advisable to start with key menus, identify a maximum of three to five CCPs, refine monitoring and corrective actions, and then expand the system. Regular training, brief reviews, and clear responsibilities ensure that HACCP principles thrive in the daily routine of the kitchen and truly protect the health of children.