HACCP Monitoring & Records

HACCP Temperature Logs: What to Record, How Often & Best Practice

Temperature Logging for HACCP: Frequency, Format & Common Errors

Temperature logging is the backbone of HACCP monitoring. Every food business in the UK must be able to demonstrate that it keeps food at safe temperatures throughout receiving, storage, cooking, cooling, and service. Under the Food Safety and Hygiene (England) Regulations 2013, food business operators must put in place, implement, and maintain procedures based on HACCP principles, and temperature records are the primary evidence that your critical control points are under control. This article covers exactly what to record, how often, and the format that satisfies both regulatory requirements and practical kitchen operations.

Key takeaways

Log fridge temperatures at least twice daily, freezer once daily, and cooking temperatures for every batch of high-risk food.

Every temperature record must include date, time, reading, who took it, and any corrective action.

Out-of-range readings with documented corrective actions are better than gaps in your records.

Delivery temperatures should be checked and recorded on arrival for every chilled and frozen delivery.

Digital logging systems reduce errors and make records easier to retrieve during inspections.

What Temperatures You Must Log

At a minimum, your HACCP temperature logs should cover five areas: fridge storage (target below 5C, legal maximum 8C), freezer storage (target -18C or below), cooking core temperatures (75C or equivalent time-temperature combination), cooling records (from 63C to below 8C within 90 minutes), and hot holding (above 63C). Each of these corresponds to a CCP or operational prerequisite programme in most food businesses. Fridge logs should record the temperature of every unit at least twice daily, ideally at the start of the day and again during the busiest service period. Freezer logs are typically once daily. Cooking logs should record the core temperature of every batch or high-risk item, using a calibrated probe thermometer inserted into the thickest part of the food. Cooling records should note the time food was removed from heat, when it reached 8C, and the method used (blast chiller, ice bath, shallow containers). Hot holding logs should be taken at least every two hours during service, with the food discarded if it drops below 63C and cannot be promptly reheated to 75C.

Logging Frequency and Timing

The FSA does not prescribe exact logging frequencies, which means your HACCP plan must define them based on your risk assessment. However, there are widely accepted standards that EHOs expect. Fridge and freezer checks should happen at least twice per day for fridges and once for freezers. Many businesses log at opening and closing. Cooking temperatures should be checked for every batch of high-risk food. If you cook 30 portions of chicken supreme in one batch, one probe reading at the thickest part is sufficient for that batch. If you cook in multiple batches, each batch needs its own reading. Delivery temperature checks should happen for every delivery of chilled or frozen goods, recorded immediately on arrival. The delivery should be rejected if chilled items are above 8C or frozen items show signs of thawing. Hot holding checks every two hours is the general standard, though some businesses with long service windows check hourly. The critical thing is consistency. Gaps in your records are more damaging to your HACCP credibility than occasional out-of-range readings with documented corrective actions.

Format and Structure of Temperature Logs

Whether you use paper logs or digital systems, every temperature record should capture: the date and time of the reading, the location or equipment identifier (e.g. "Fridge 2 - Prep Kitchen"), the temperature reading, the name or initials of the person taking the reading, and any corrective action taken if the reading was out of range. For cooking logs, also record the food item and batch identifier. For delivery logs, include the supplier name, product description, and vehicle temperature if available. Paper logs typically use a grid format with dates across the top and equipment down the side. Digital systems can automate much of this, with Bluetooth probe thermometers that timestamp readings and flag deviations automatically. Whichever format you use, the records must be legible, complete, and retrievable. An EHO visiting your premises may ask to see the last three months of temperature records. If you cannot produce them quickly, that is a significant concern regardless of whether your actual temperatures were fine.

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Dealing with Out-of-Range Readings

An out-of-range reading is not automatically a food safety failure. What matters is your response. Your HACCP plan should define corrective actions for every monitored CCP. For a fridge reading above 8C: check if the door has been left open, check the food temperature directly (air temperature fluctuates more than food temperature), move food to a compliant unit if needed, and call for repair if the unit is faulty. For a cooking temperature below 75C: continue cooking until the target is reached, or discard the food if it has been in the danger zone too long. For a hot holding reading below 63C: reheat to 75C if the food has been below 63C for less than two hours, or discard it. Every corrective action must be recorded alongside the out-of-range reading. Writing "fridge temp 10C - moved food to Fridge 3, engineer called" is exactly what an EHO wants to see. It demonstrates that your system works: you detected the problem and acted on it.

What to do next

Audit your current temperature logging

Review the last month of records. Check for gaps, missing initials, and whether corrective actions are documented for any out-of-range readings.

Calibrate all probe thermometers

Test probes in iced water (should read 0C +/- 1C) and boiling water (should read 100C +/- 1C). Record the calibration date and result.

Define corrective actions for each monitoring point

Write clear instructions for what staff should do when a fridge, cooking, cooling, or hot holding temperature is out of range. Post these next to the relevant log sheets.

Common mistakes to avoid

Mistake

Filling in temperature logs at the end of the shift from memory

Instead

Logs must be completed at the time of the reading. Retrospective completion is obvious to EHOs (identical handwriting, round numbers, no corrective actions) and undermines your entire HACCP system.

Mistake

Only logging cooking temperatures for some items

Instead

All high-risk foods that go through a cooking CCP need temperature verification. Create a batch logging system so nothing is missed during busy service.

Frequently asked questions

How often should I check fridge temperatures for HACCP?

At least twice daily is the widely accepted standard. Most businesses check at the start of the day and again during or after the busiest service period. Some high-risk operations (care homes, hospitals) check three times daily. The key is that your HACCP plan defines the frequency and you consistently follow it.

Do I need to log every single cooking temperature?

You need to log the core temperature of every batch of high-risk food that passes through a cooking CCP. If you cook 20 chicken breasts in one batch, one representative probe reading is sufficient. If you cook them in three separate batches, you need three readings. Low-risk items like toast or boiling vegetables do not typically require logging.

What should I do if my fridge temperature is above 8C?

Check the food temperature directly with a probe - air temperature recovers slowly after door opening. If the food itself is above 8C, assess how long it has been out of range. Move food to a compliant unit, check for faults (blocked vents, failed compressor, door seal damage), and call an engineer if needed. Record everything you did on the log sheet.

Are digital temperature logs accepted by EHOs?

Yes, and many EHOs prefer them. Digital logs are harder to falsify, automatically timestamped, and easier to review. The FSA has no requirement for paper records specifically. What matters is that the records are accurate, complete, retrievable, and demonstrate your monitoring system is working.

HACCP Monitoring & Records