Food safety sounds complicated, but most of it comes down to four C's. This guide keeps it plain — what each one means, the key temperatures, and the habits that keep customers safe and inspectors happy.
Why it matters
You can't see the bacteria that cause food poisoning. The 4 C's are the simple controls that stop them spreading and growing.
Easy to learn — but they only work if you do them every time.
The four C's
Each 'C' tackles a different risk. Tap each to see what it means.
Stop the spread
Clean and sanitise hands, surfaces and equipment. 'Clean as you go' stops bacteria building up during prep.
The key temperatures
Three numbers do most of the work. Check them with a clean probe.
Danger zone
The temperature range where bacteria multiply fastest. Keep food out of it as much as possible.
Core cooking temp
Cook food until it reaches 75°C in the centre to destroy harmful bacteria.
Fridge temperature
Keep chilled and high-risk foods at or below 5°C to slow bacterial growth.
5–63°C is the danger zone. Keep food colder or hotter than that.
The 4 C's in practice
Four habits, every shift:
Clean
Wash hands, sanitise surfaces and equipment, and clean as you go.
Cook
Cook thoroughly to a 75°C core temperature; reheat only once, piping hot.
Chill
Keep cold food ≤5°C; cool leftovers quickly and refrigerate within the safe window.
Avoid cross-contamination
Separate raw and ready-to-eat food; use separate boards, utensils and storage.
What the law says
Irish food businesses must follow Regulation (EC) 852/2004 and apply HACCP-based procedures, enforced by the Food Safety Authority of Ireland (FSAI) and the HSA/Environmental Health Officers. In practice that means being able to:
- Put a food-safety management system (HACCP) in place
- Train food handlers to the right level
- Keep cleaning, temperature and supplier records
- Manage allergens and label food correctly