What Should a Reheating Temperature Log Record?

A reheating temperature log should identify the food and batch, record the approved safe method and the actual result at the centre or coldest point, name the person checking, and show every corrective action. A tick beside “reheated” is not enough to explain what was checked or what happened when the first result failed.

TapTick can help teams schedule reheating checks, capture actual results and corrective actions, and make missed or failed checks visible to managers. See the TapTick features.

What the reheating log should record

The record should let a manager or inspector reconstruct the check without relying on the operator's memory. Include:

• date and site — plus the kitchen, counter or service area where useful;
• food and batch — for example, “beef chilli, batch 2”, not simply “hot food”;
• reheating equipment or method — oven, hob, microwave, combi or another approved method;
• check time — so the result can be related to service or transfer to hot holding;
• approved target or safe check — the limit or method stated in the site's food safety procedure;
• actual result — normally the stable core-temperature reading, not “OK” or a copied target;
• check location — centre, coldest point or the areas sampled, especially for a large batch or microwaved food;
• person responsible — initials, name or authenticated user;
• corrective action — when the first check does not meet the approved method; and
• final result or disposition — the successful recheck, disposal or other authorised decision.

A probe identifier can be useful when several thermometers are in use. It links the reading to the relevant accuracy-check record if a result later looks doubtful.

Keep the target and actual result in separate fields. If a form contains only one temperature box, staff may enter the target rather than the value they observed. That hides marginal and failed checks and makes trend review much less useful.

Set the approved method before the shift

The log should reflect a reheating method already defined in the business's HACCP-based food safety system. It should not ask the person on shift to invent a safe limit for each batch.

The method should state which foods may be reheated, the equipment and portion or batch size, the safe check, where to test, who may release the food and what happens when the check fails. Follow manufacturer instructions for bought-in products and use a validated process for specialist cook-chill or sous-vide operations.

In Ireland, FSAI guidance says food must be reheated only once after cooking or hot holding and should be piping hot, at least 70°C at its core. FSAI's Safe Catering record form includes a reheating core-temperature field, a signature field and a comments or action field.

For England and Wales, the FSA's Safer Food, Better Business reheating method tells operators to make sure the centre reaches a safe temperature. If the business uses a different check, the pack says it must prove that the method is safe and document the check. This is why a multi-site template should not hard-code one number for every jurisdiction, product and approved process.

Where and how to check reheated food

Check the part most likely to remain cold. For a solid item, that is normally the centre or thickest part. For a pan, tray or large batch, stir where the process allows and sample more than one place. The entry should make clear what was checked when a single reading cannot represent the whole batch.

Microwave reheating needs particular care. The FSA tells businesses to follow the manufacturer instructions, including standing and stirring, and to test several areas because microwave cold spots can remain even when the edges are very hot. Record the lowest representative result, or the individual readings if the site procedure requires them.

Use a suitable, accurate probe and clean and disinfect it before and after use. Insert the sensing area into the food without touching the container, tray or another hot surface. Wait for a stable reading and record what the probe displays.

If the number is implausible, repeat the check correctly and investigate the probe. Do not choose the more convenient result. A reheating log shows what happened to the food; separate probe checks show that the instrument can be trusted.

How often reheating checks should be recorded

There is no reliable universal answer such as “one reheating check per day” for every business. The monitoring frequency should come from the HACCP-based procedure and reflect the food, batch size, equipment, variability and consequences of failure.

Checking each batch is often the clearest method where food is prepared, cooled and reheated in separate batches. A stable, validated process may use a defined verification frequency alongside controlled recipes, portion sizes, equipment settings and service practices. The business should be able to explain which approach it uses and why.

Increase checks when confidence is lower, for example:

• a new food, recipe, supplier, portion size or pack size is introduced;
• different equipment or a new programme is used;
• a batch is larger, denser or colder than normal;
• equipment has been repaired or is heating unevenly;
• the previous batch failed or produced an unusual result; or
• staff are learning the method or have not yet demonstrated it reliably.

What to record when reheating fails

Keep the failed first result. Do not overwrite it with the temperature reached later. The original result shows that the control was actually used and gives managers evidence to prevent a repeat.

Where the approved procedure allows it, the immediate action may be to continue reheating, stir or divide the batch, correct the equipment setting, and then test again. The FSA's SFBB method says that if reheated food is not hot enough and the equipment appears to be working, reheat it for longer and test it again.

Record the repeat result before the food is released. If the approved method cannot be achieved, isolate the batch from service and follow the site's disposal or escalation procedure. Do not serve the food first and complete the record later.

A good corrective-action entry answers four questions:

1. What failed? The food, batch, time, check point and actual result.
2. What happened immediately? Further reheating, stirring, dividing, isolation or another approved action.
3. How was safety confirmed? The repeat check and release decision, or disposal.
4. What prevents a repeat? Review equipment, batch size, method, instructions, training or supervision.

Example reheating record

Suppose an Irish site reheats a pan of beef chilli under its approved limit of at least 70°C at the core. A useful entry might show:

• Food: beef chilli, batch 2;
• Method: induction hob 1, stirred during reheating;
• Check: 11:42, centre after stirring, 66.8°C;
• Action: reheated for four more minutes and stirred again;
• Recheck: 11:47, centre and edge checked, 74.2°C and 75.0°C;
• Release: moved immediately to hot holding; and
• Follow-up: supervisor reviewed the batch size before the next service.

“Chilli — reheated — tick” would hide the failed first check, the actual results and the action. The fuller entry shows that the control worked and gives the manager something useful to review.

Connect reheating to cooling and hot holding

Reheating does not repair poor cooling or storage. The business should be able to link the reheated batch to its preparation, cooling and chilled-storage controls. A batch identifier is often more useful than repeating all of that information in the reheating entry.

After a successful reheating check, record or link the next step. Food served immediately should move promptly to service. Food kept for later service should enter the approved hot-holding control without an unexplained gap.

Also make the “reheat once” rule operational where it applies. Labelling, batch identity and staff instructions should prevent food from returning to the refrigerator and being reheated again without anyone knowing its history.

How multi-site operators should review the records

Standardise the evidence fields and escalation rules, but let each site use the safe method approved for its products and jurisdiction. Head office can then compare results without pretending every operation has the same legal wording or process.

Useful review questions include:

• Which products, batch sizes, sites or equipment produce the most failed first checks?
• Are staff recording actual readings or repeating the target number?
• Do microwave records show checks in more than one area where needed?
• Are repeat results linked to the original failure?
• Is the batch released only after the successful recheck?
• Can the reheating entry be linked to the batch's cooling and storage history?
• Are the same corrective actions recurring without a preventive fix?

A row of identical readings is not automatically reassuring. It may reflect a very stable process, but it can also indicate copied targets or retrospective completion. Review patterns alongside observed practice, equipment checks and probe records.

Ireland and UK: law, guidance and site limits

Food businesses must operate food safety procedures based on HACCP principles, proportionate to their activities. Those procedures should identify significant hazards, set controls and limits where appropriate, monitor them, take corrective action and keep suitable evidence.

FSAI's reheating temperature and “only once” wording is official guidance for Irish businesses. Its Safe Catering Pack provides a practical form for cooking, cooling and reheating records. The form is a useful model, but the business still needs to adapt its monitoring to the hazards and process it actually operates.

The FSA's SFBB material is practical guidance for small businesses in England and Wales. It requires the operator to define and follow a safe reheating method, check the centre, account for microwave cold spots and prove a different check where one is used. SFBB guidance does not make one temperature printed in another jurisdiction automatically applicable across the UK.

Businesses in Northern Ireland should follow the FSA's Safe Catering guidance, and Scottish businesses should use Food Standards Scotland guidance. In every jurisdiction, confirm current local requirements, product instructions and the critical limits in the site's own food safety system.