HACCP by Process

Cooking Temperatures: HACCP Core Temperature Requirements by Food

Safe Cooking Temperatures: Core Temperature Requirements by Food Type

Cooking is the primary kill step in most food operations - the point where pathogenic bacteria are destroyed to safe levels. In the UK, the standard target is a core temperature of 75C for at least 30 seconds, which provides a safety margin that accounts for probe accuracy and temperature variation across the product. However, different food types carry different risks and may require specific approaches. Getting cooking temperatures right is not just about reaching a number on a probe - it requires understanding which organisms you are targeting, where to measure, and what to do when the temperature falls short.

Key takeaways

75C core temperature for 30 seconds is the standard UK safe cooking target for most foods

Poultry and minced meat must always reach 75C core - no exceptions for rare or pink service

Equivalent combinations like 70C for 2 minutes are valid but require documented justification

Probe the thickest part of the food, away from bone, and wait for the reading to stabilise

If food has not reached the critical limit, continue cooking or discard - never serve it

Core Temperature Targets by Food Type

Poultry (chicken, turkey, duck, goose) is the highest-risk category due to Campylobacter and Salmonella. Target 75C at the thickest part of the thigh or breast, away from bone. Poultry should never be served pink or rare. Minced meat products (burgers, sausages, meatballs, kebabs) must reach 75C throughout because the mincing process distributes surface bacteria into the centre. Whole muscle beef and lamb can be served rare on the interior, provided the exterior surface has been seared to at least 70C for 2 minutes, because bacteria are confined to the surface. This exception does not apply to rolled, tenderised, or injected joints where surface bacteria may have been pushed into the centre. Pork should reach 75C core - while trichinosis is rare in the UK, the risk warrants full cooking. Fish is generally safe at 63C core for most species; shellfish should reach 75C. Eggs and egg dishes should reach 75C unless pasteurised eggs are used. Rice must reach 75C if reheated, and leftover cooked rice should be cooled within 1 hour and refrigerated to control Bacillus cereus.

Equivalent Time-Temperature Combinations

The 75C target is the simplest approach, but it is not the only safe option. The principle of thermal death means that lower temperatures held for longer periods achieve the same level of pathogen destruction. Recognised equivalent combinations for a 6-log reduction (99.9999% kill) of Salmonella and Listeria include: 60C held for 45 minutes, 65C for 10 minutes, 70C for 2 minutes, 75C for 30 seconds, and 80C for 6 seconds. These equivalencies are important for sous vide cooking, where products are held at precise lower temperatures for extended periods, and for slow-roasted meats where texture depends on avoiding high core temperatures. If your HACCP plan uses an equivalent combination, you must document the scientific justification, ensure your monitoring can verify both temperature and time, and train staff to follow the procedure precisely. A probe thermometer alone is not sufficient for timed combinations - you also need a reliable timer or data logger. EHOs will accept equivalent combinations provided they are properly documented.

Probe Technique and Monitoring

The accuracy of your cooking CCP depends entirely on how you probe. Insert a calibrated digital penetration probe into the thickest part or geometric centre of the food, avoiding bone, fat pockets, and air spaces, all of which give misleading readings. Wait 15-30 seconds for the reading to stabilise before recording. For batch-cooked items (trays of chicken portions, pans of bolognese), probe at least 2-3 items per batch and record the lowest reading. For large single items, probe in multiple locations. Clean and sanitise the probe between items, especially between raw and cooked foods, to prevent cross-contamination. Calibrate probes weekly using the ice-point method: fill a cup with crushed ice and a small amount of water, insert the probe, and verify it reads 0C (+/- 1C). Record calibration results. Replace probes that are consistently inaccurate. Oven temperature gauges measure air temperature, not food temperature, and are not valid for CCP monitoring.

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Corrective Actions for Cooking Failures

When a probe check reveals the core temperature has not reached your critical limit, the corrective action depends on the situation. If food is still in the cooking equipment, continue cooking and re-probe until the target is reached. If food has been removed from heat but not yet served, return it to the heat source and cook until the critical limit is met, then re-probe. If food has already been plated or served, it must be recalled and discarded. Never assume that food which has been partially cooked is safe to serve. Record every corrective action: the time, the temperature found, what action was taken, and who took it. Repeated cooking failures should trigger a root cause investigation. Common causes include inconsistent portion sizes, equipment not reaching the correct operating temperature, staff shortcutting cooking times during busy service, and frozen items being cooked without adequate thawing. Update your HACCP plan if any process changes are needed as a result.

What to do next

Display a cooking temperature reference chart in the kitchen

Create a laminated chart showing the target core temperature for each food category you prepare, where to place the probe, and the corrective action if the target is not met.

Implement a probe-and-record system for every cook

Make it standard practice to probe at least one item per batch and record the result on your cooking temperature log. Train all cooks on probe technique.

Common mistakes to avoid

Mistake

Relying on visual cues like colour or steam instead of probing

Instead

You cannot tell if food has reached 75C by looking at it. Chicken can appear white and fully cooked while still being below safe temperature inside. Always use a probe thermometer.

Mistake

Probing through bone or into fat

Instead

Bone conducts heat faster than muscle, and fat has a higher temperature than the surrounding lean meat. Both give falsely high readings. Probe the thickest part of the lean muscle.

Frequently asked questions

What temperature should food be cooked to in the UK?

The FSA recommends a core temperature of 75C for at least 30 seconds. This applies to most food types. Some equivalent combinations (like 70C for 2 minutes) are acceptable if documented in your HACCP plan.

Can I serve rare beef?

Whole muscle beef and lamb can be served rare, provided the outer surface has been seared to at least 70C for 2 minutes. This does not apply to minced beef, rolled joints, or any meat that has been tenderised or injected.

How do I know my probe thermometer is accurate?

Calibrate weekly using the ice-point method: a probe in an ice-water slurry should read 0C (+/- 1C). Also check in boiling water (should read 100C at sea level). Record calibration results and replace inaccurate probes.

Do I need to probe every single item I cook?

For batch cooking, probe at least 2-3 items per batch and record the lowest reading. For individual large items (whole chickens, roasting joints), probe each one. For continuous processes like conveyor ovens, validate periodically.

HACCP by Process