Cold rooms: safety, hygiene and compliance in Morocco

"Temperatures, safety devices, materials, traceability: what a sanitary audit checks and what you must be able to prove."

A compliant cold room is not simply a cold room that holds its temperature. It is an installation that protects the people who enter it, that does not contaminate the goods it holds, and whose operation can be demonstrated in writing. All three aspects are checked separately.

The applicable framework

In Morocco, the National Office for Food Safety governs the approval and inspection of establishments handling foodstuffs. The expected approach rests on HACCP principles: identify hazards, define critical control points, set limits, monitor, correct and keep records.

For cold storage this translates into one requirement: being able to produce, at any time, the temperature history and the record of actions taken when a limit was exceeded.

Storage temperatures

The values below are the usual orders of magnitude. They must be confirmed by your HACCP plan and by the regulations applicable to your sector:

Frozen goods: −18 °C or colder, with no temperature rise.
Fresh meat: between 0 °C and +4 °C depending on the species.
Fresh seafood: close to 0 °C, on melting ice.
Dairy and chilled prepared meals: between +2 °C and +4 °C.
Fruit and vegetables: a wider range, varying by product and its sensitivity to cold.

The measurement point matters as much as the value. A probe placed in the evaporator airflow reads colder than the product at the least favourable point in the room. It is that least favourable point that counts, and that is what a temperature mapping exercise looks for.

Protecting people

The anti-entrapment device

Any enclosure a person can enter must be openable from the inside, even when locked from outside. Alongside it, an alarm operable from inside, both audible and visible, with a standalone power supply that survives a mains failure. Testing this device must be periodic and recorded.

Lighting

Sealed luminaires rated for humidity and low temperature, switching available from both inside and outside, and emergency lighting allowing anyone to reach the door during a power cut.

Floors and circulation

In a freezer room, an unheated floor eventually heaves as the ground beneath it freezes. In a chill room, condensation makes floors slippery: the finish must be anti-slip and drainage correctly graded. Trolley traffic calls for frame and corner protection, without which panels get punctured and the insulation takes on water.

Hygiene and materials

Internal surfaces must be smooth, washable, rot-proof and non-toxic in contact with food. Panel joints and floor-to-wall junctions must be detailed so they do not trap residues: sharp corners are the first place microbial growth develops.

Two defects come up in almost every inspection: damaged door seals, which let humid air in and build frost around the opening, and a condensate tray that is badly connected or blocked, discharging into the room.

Traceability

Temperature recording is the core of the compliance file. A thermometer readable from outside is not enough: recording must be continuous, retained and usable.

What an inspection examines:

Probe positions, justified by a mapping exercise rather than chosen for cabling convenience.
Periodic probe calibration, with certificates.
The retention period for records.
The existence of excursion alarms and evidence that they reach someone able to act, including at night and at weekends.
Written records of corrective action after each alarm.

That last point separates a useful system from a decorative one. An alarm with no recipient protects nothing.

Refrigerants

The circuit must be leak-tight, and that tightness must be verified periodically according to the refrigerant charge, by a qualified technician, with quantities added or recovered recorded. As Morocco is party to the Kigali Amendment, the hydrofluorocarbon phase-down schedule governs the future availability of certain refrigerants: that is a selection criterion at investment time, not a subject to address the day a top-up becomes unobtainable.

The pre-audit checklist

Temperature history available and readable over the period requested.
Probe calibration certificates up to date.
Refrigerant circuit leak-testing register maintained.
Anti-entrapment device test dated and recorded.
Door seals, lighting and condensate drainage in working order.
Written procedure for temperature excursions, known to the teams on shift.
Maintenance reports for the last twelve months filed.

Most non-conformities recorded do not concern the equipment, which works, but the absence of written evidence. A file kept up to date turns an inspection into a formality.