Food temperature and records · Commercial
Cooler air temperature versus food temperature: record the right reading
Understand why a cabinet display and a food probe can disagree, and use each measurement for its proper purpose.
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Three numbers can mean three different things
A controller setpoint is the target selected for equipment operation. A cabinet display generally reports a sensor reading, which may represent air or another equipment location. A food thermometer measures the product at the point tested. These values answer different questions and should not share an unlabeled column in your records.
True's manual explains that a cabinet thermometer is not a product thermometer and can reflect refrigeration-cycle temperature swings. Doors opening, defrost, loading, and sensor location can change air readings. That does not make a warm display irrelevant; it means food condition must be assessed through the appropriate food-safety procedure rather than inferred from one equipment number.
Supporting references: North Carolina Food Code Manual: 2017 Food Code adoption, effective October 1, 2021, T-Series Installation Manual, Changes to Cold Holding Temperatures in NC.
Apply the cold-holding rule accurately
North Carolina Food Code section 3-501.16 generally requires cold-held time/temperature control for safety food to be maintained at 41°F or below. This is not a universal thermostat setting. The section includes exceptions, including provisions for untreated shell eggs and specified specially designed equipment, and distinguishes preparation, cooking, cooling, and compliant time-as-a-public-health-control procedures.
Untreated shell eggs have a specified refrigerated-equipment ambient-air provision of 45°F or below. That exception must not be generalized to other foods. Ask the person in charge and local regulatory authority which requirements and approved procedures apply to the operation. Do not create an improvised time-control policy when refrigeration fails.
Supporting references: North Carolina Food Code Manual: 2017 Food Code adoption, effective October 1, 2021, T-Series Installation Manual, Changes to Cold Holding Temperatures in NC.
Make measurements repeatable and useful
Follow the establishment's procedure for selecting representative foods, using a suitable thermometer, checking its accuracy, and cleaning and sanitizing food-contact probes. Record the actual measured food, time, temperature, and person checking. Keep cabinet-air observations separately labeled, and identify the unit so a reading can be traced to the right equipment.
A surface-only infrared reading does not substitute for an internal measurement when the procedure requires one. Avoid guessing a whole container's condition from a cold package exterior. Monitoring frequency should follow the establishment's plan and risk, not the number of blank rows on a form.
Supporting references: North Carolina Food Code Manual: 2017 Food Code adoption, effective October 1, 2021, T-Series Installation Manual, Changes to Cold Holding Temperatures in NC.
Use records to support decisions, not replace them
Use the cooler temperature log to organize readings and corrective-action notes. The existing resource provides a place for records; it does not decide food disposition or establish a universal inspection schedule. Preserve the last known acceptable reading and note outages, deliveries, alarms, and moves to another cabinet.
Escalate questionable readings promptly to the person in charge. That person should apply approved corrective actions and consult the local authority when needed. Equipment repair and food-safety review are separate responsibilities: a repaired cooler cannot retrospectively establish that food remained safe during an unknown temperature excursion.
Supporting references: North Carolina Food Code Manual: 2017 Food Code adoption, effective October 1, 2021, T-Series Installation Manual, Changes to Cold Holding Temperatures in NC.
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