2.1 Prerequisite Programs (PRPs) & Operational Hygiene

2.1 Prerequisite Programs (PRPs) & Operational Hygiene

Core Definition and Strategic Importance of PRPs

In food safety management, Prerequisite Programs (PRPs) represent the baseline environmental, structural, and operational conditions necessary to produce safe food. Mandated by the Dubai Municipality Food Safety Department, PRPs serve as the foundation upon which a Hazard Analysis Critical Control Point (HACCP) system is built. While HACCP focuses on identifying and controlling specific hazards at individual steps in a food process (such as cooking or chilling), PRPs address general, facility-wide hazards. Without robust, documented PRPs, a HACCP plan cannot function.

The primary role of PRPs is preventive. By controlling general environmental hazards—such as pest infestation, microbial build-up on walls, or cross-contamination from raw ingredients—PRPs allow the HACCP plan to remain focused solely on the critical points of the process. In Dubai, the Person in Charge (PIC) is legally responsible for ensuring that all PRPs are established, fully documented, and audited regularly. A failure in a PRP, such as a pest control lapse, can lead to severe penalties from municipal inspectors, even if the HACCP plan itself is operational.

The Structural Relationship Between PRPs and HACCP

PRPs manage the operational environment and personnel, while HACCP manages the specific food product and process flow.

Approved Supplier Control and Foodwatch (DMChecked) Integration

Supplier control is a mandatory prerequisite in Dubai. Establishments must source ingredients exclusively from approved, licensed suppliers.

• Foodwatch Platform Registration: The Dubai Municipality mandates the use of the digital Foodwatch platform (relaunched as DMChecked in 2025). This platform acts as a centralized database where suppliers must register and log their food safety compliance status. The PIC must verify that all active suppliers are registered and in good standing on Foodwatch before purchasing any ingredients.
• Receiving Protocols: When shipments arrive, the PIC or a trained receiver must conduct formal inspections. This includes checking delivery vehicle cleanliness, verifying that dry goods are undamaged, checking labeling for Arabic language translation (mandatory for imported foods), and measuring temperatures. Chilled high-risk foods must be received at or below 4°C, and frozen foods at or below -18°C. Any deviation requires rejecting the delivery and logging the incident.

Water Quality and Mandatory Potability Checks

Water quality is a critical PRP since water is used for preparation, cleaning, ice making, and as an ingredient. In Dubai, it must meet the potability standards established by the Gulf Standardization Organization (GSO).

• Six-Month Cleaning Mandate: Water storage tanks are prone to bacterial contamination, including Legionella and coliforms. Dubai Municipality regulations mandate that water storage tanks must be cleaned and disinfected at least once every six months.
• Approved Contractors: This cleaning cannot be performed by the food establishment's internal staff. It must be conducted by a specialized water tank cleaning company approved by the Dubai Municipality.
• Testing and Certification: After cleaning, water samples must be analyzed by an accredited laboratory. The lab report must confirm the absence of coliforms and E. coli. The PIC must retain cleaning certificates and lab reports on-site for one year for inspection. Water filters for ice machines and dispensers must also be replaced regularly.

Facility Design, Layout, and the Unidirectional Flow Principle

Proper facility design is a passive control that prevents cross-contamination. The key principle is the unidirectional linear flow pattern ("no-cross flow"), moving food in one direction: receiving, storage, preparation, cooking, assembly, and service.

• Zoning and Separation: Ready-to-eat (RTE) preparation zones must be separated from raw prep areas. If space is limited, operational segregation must be enforced, using color-coded cutting boards (e.g., red for raw meat, blue for raw fish, yellow for raw poultry, green for fruits/vegetables) and cleaning surfaces between tasks.
• Ventilation and Drainage: Kitchens must maintain positive air pressure in clean areas. Drainage must flow from clean areas toward dirty areas, never the reverse, and floor drains must have traps and grates to prevent pest entry.
• Handwashing Stations: Dedicated handwash sinks must be installed in food preparation areas. They must be equipped with hot and cold running water, liquid soap, paper towels, and handwashing signs in languages spoken by the staff. Handwash sinks must never be blocked or used for washing food or utensils.

Waste Management Layout

Proper waste management prevents pest attraction, odors, and cross-contamination.

• In-Facility Waste Bins: Bins located in prep areas must be durable, leak-proof, and foot-operated (hands-free) to prevent hand-to-lid contamination. Bins must be lined with plastic bags and emptied when two-thirds full or at the end of each shift.
• External Waste Storage: Bins must be located away from receiving doors and air intake vents. The external waste yard must be paved, sloped toward a drain with a grease trap, and easily cleaned.

Equipment Maintenance and Calibration

Equipment must be made of food-grade, non-corrosive materials (such as stainless steel grade 304).

• Preventive Maintenance: A schedule must detail routine servicing, such as checking chiller compressors and replacing worn door gaskets.
• Calibration: The PIC must ensure probe thermometers are calibrated regularly. The ice point method involves placing the probe in a 50/50 ice-water slurry and verifying it reads 0°C (± 0.5°C). The boiling water method involves verifying a 100°C (± 0.5°C) reading in boiling water. Records must be logged. A thermometer deviating by more than 1°C must be removed from service.