A buffet lunch has been out on the sun deck for an hour in 32 °C heat. The cold cuts are sweating. The chef is ashore for provisioning. Guests are still picking at it, and the owner asks you to leave it out "in case anyone wants more later". You need to know exactly what the risk is and what to say.
HACCP in one paragraph
HACCP — Hazard Analysis and Critical Control Points — is the systematic food-safety approach required on commercially operated yachts. It means: identify the hazards (biological, chemical, physical, allergenic), find the critical control points where you can control them, set critical limits, monitor, take corrective action when a limit is breached, verify, and keep records. As interior crew you are usually the monitoring and recording hands: temperatures, times, cleaning, and delivery checks.
The danger zone
Bacteria multiply fastest in the middle temperature range. The widely used food-safety principle is that food should be kept out of roughly 5 °C to 63 °C — cold food held cold, hot food held hot, and the time spent in between kept as short as possible.
| Control | Principle |
|---|---|
| Chilled storage | Keep refrigerated food cold — typically at or below 5 °C (some systems specify 8 °C as a legal maximum; the boat's system governs) |
| Frozen storage | Typically −18 °C or below |
| Hot holding | Keep hot food above 63 °C |
| Cooking / reheating | Cook thoroughly; reheat to a high core temperature and only once |
| Cooling | Cool cooked food quickly, then refrigerate |
| Buffet / display | Limit the time food is out; cold food on ice, hot food in chafers |
Exact figures vary by jurisdiction and by the yacht's own food-safety management system, and by flag and port state rules. State the principle, follow the boat's documented limits, and record.
Buffet and outdoor service
- Cold food goes on ice or in a chilled well, not on a warm surface in the sun.
- Hot food goes in heated chafers, checked with a probe, not left to coast.
- Do not top up an old tray with fresh food — replace the tray. Do not return displayed food to a fridge for reuse.
- Keep display times short and shaded. In heat, cut the display time hard.
- Probe thermometers: sanitise before and after each use, and record the reading.
Cleaning the pantry and service areas
- Clean as you go. A pantry tidy at the end of a course is a pantry that works during the next one.
- Clean, then sanitise — cleaning removes soil, sanitising kills bacteria, in that order, with the correct contact time.
- Colour-coded cloths and boards, separate for raw and ready-to-eat.
- Cover, label and date everything going into a fridge. First in, first out.
- Bins: lidded, emptied often, hands washed after touching them.
- Waste management is also a MARPOL matter — nothing goes over the side.
Onboard Notes
- If food has been out too long, it goes in the bin. When in doubt, throw it out. Explain to the guest politely that fresh is being brought out — never argue about the science at the table, and escalate to the chief stew if pressed.
- Food poisoning at sea is a serious incident: no hospital nearby, no way to isolate a small crew.
- Records are the evidence that the system was followed.
- This lesson is preparatory study only. It is not a Food Safety qualification; that comes from a recognised awarding body.