Power Outage, Thawed Chicken and a Plan to Refreeze
A hotel kitchen in Abuja receives 20 kg of frozen chicken at 9 a.m. on Monday. It is placed in a chest freezer at −18°C. At 10 p.m. a transformer fault cuts power; the freezer is not opened, but by 7 a.m. Tuesday the internal temperature has risen to 7°C and the chicken is soft, with clear pinkish liquid in the bottom of the freezer. Power returns at 8 a.m. The head cook wants to refreeze the chicken for weekend use. A kitchen assistant suggests rinsing it in the sink and cooking it well for lunch. The hotel serves a buffet and also prepares chicken for a children's party on Wednesday. The freezer has no temperature log, and no one knows how long the chicken was above 5°C.
1. Is refreezing acceptable? Reason from the temperature and time evidence, and explain why rinsing or thorough cooking does not make the chicken safe.
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Refreezing is not acceptable on these facts. The freezer reached 7°C, above the 5°C limit, and no log shows how long the chicken was above 5°C. The pinkish liquid and soft texture show that thawing was well advanced. Once frozen chicken is above 5°C, bacteria that were dormant can multiply; the danger zone is roughly 5–60°C, and the warmer the food and the longer the time, the greater the risk. The safe default is: if you cannot prove the food stayed at 5°C or below, do not refreeze and do not serve it.
Refreezing would also worsen quality and could concentrate risk if the chicken is later undercooked. The fact that it will be cooked well does not undo toxin that may already have formed, and buffet service adds holding risk. Rinsing in the sink is worse: it spreads contaminated liquid to the sink, cloth and nearby surfaces.
2. What should be done with the chicken, and what monitoring records would have prevented this judgement being made blind?
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Action: keep the chicken segregated and labelled 'hold - do not use'; measure core temperature with a probe; check whether any part is still frozen and whether the 7°C reading is representative. If there is no verified record that it stayed at 5°C or below, discard it. If management insists on using it, the only defensible route is immediate cooking to 74°C or above and immediate consumption - not refreezing and not a Wednesday children's party. Children are a vulnerable group, so the risk is unacceptable.
Records that would have helped: delivery temperature; freezer temperature at least every 4 hours; time power failed and returned; internal food temperature during the outage; corrective action. After the event, clean and sanitise the freezer, check the seal and alarm, and arrange a backup or move stock to another freezer. Also review thawing: refrigerator at 5°C, sealed bag under cold running water, or microwave immediately before cooking - never on the bench.