Hot buffet at a Sliema hotel: top up or discard?
At a 120-cover hotel buffet in Sliema, lunch service runs from 12:15 to 15:00. At 14:10 the chef probes the chicken drumsticks at 54 °C and the vegetable rice at 58 °C. Both have been on the open buffet since 12:15 and were topped up once at 13:20 from a fresh batch. The chef wants to add the remaining fresh drumsticks to the same tray, stir old and new together, and keep the rice until 15:00 because 'it still looks and smells fine'. There is no written hot-holding record. The probe thermometer was last calibrated in January and reads 3 °C low against a checked reference. A server has just returned from a break and picked up the serving tongs with bare hands after handling a cloth. The hotel's HACCP plan says hot food must be held at 63 °C or above.
1. What should happen to the drumsticks and rice at 14:10? Give the decision and the reasoning, including the thermometer error and the absence of records.
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At 14:10 both foods are below the plan's 63 °C limit. The probe reads 3 °C low, so the true values are about 57 °C for the chicken and 61 °C for the rice - still non-compliant. The critical issue is not the instantaneous reading but the time the food has spent below 63 °C. The buffet has been open for 1 hour 55 minutes and was topped up at 13:20, but there is no record of when either batch fell below 63 °C. Without that evidence you cannot apply a documented 'less than two hours below 63 °C, reheat to 75 °C and use immediately' decision. The safe judgement is to stop sale, remove both trays from the buffet, and discard. Do not rely on appearance or smell. Record the probe readings, the corrected values, the calibration error and the discard. If the thermometer cannot be calibrated or replaced, use a verified probe before any further hot-holding.
2. The chef proposes topping up the tray and mixing old with new. Explain why this is or is not acceptable and state what he should do instead.
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Topping up is not acceptable. Adding fresh drumsticks to the old tray and stirring them together mixes food that may have been in the danger zone with fresh food, raises the whole batch to an unsafe temperature, and makes it impossible to know the age of any portion. The fresh batch would effectively be re-contaminated and could then be held for several more hours. The correct action is to discard the old tray; if a fresh batch is to be served, place it in a clean, shallow dish as a complete replacement, check it is at least 63 °C, and record the time. Do not combine batches. Also check the rice separately. If service is nearly over, it is simpler and safer to close that part of the buffet early. The chef should be reminded that 'looks and smells fine' is not a safety test, and that the HACCP plan requires a temperature check at a defined frequency, not only when someone becomes concerned.
3. Identify the hand-hygiene lapse and describe a practical control that would prevent it recurring during service.
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The lapse is that the server handled a cloth and then picked up the tongs with bare hands. The cloth may have been used on the buffet surface or on spills and can carry contamination; the hands then transfer it to the tongs, which touch the food. Gloves are not a substitute for handwashing. Practical controls: provide a hand-wash basin with soap and paper towels within reach of the service area; require handwashing before starting service, after handling cloths or waste, and after breaks; use colour-coded or single-use cloths and keep them away from food-contact surfaces; provide long-handled tongs so servers do not touch the food end; and have a supervisor check the buffet at least hourly, recording temperatures and replacing utensils that have been contaminated. Retrain the server and document it.