Is your fridge cold enough? Enter your reading and fill the shelves
Most home fridges run warmer than guidance suggests, and few people own a thermometer. Enter your reading to see how it compares with the ranges from Irish, German and French food-safety bodies, then place your meal-prep, raw meat and leftovers on the shelves and see what to move.
Not medical advice. If you are pregnant, older or have a weakened immune system, ask your doctor or midwife which foods to avoid.
Is your fridge cold enough?
Most of us never check. The dial says "3" or "5", the light comes on, the milk is cold, and that feels like proof. But a dial is not a temperature, and meal-prepped food spends days in there. If you cook ahead, the fridge is part of the recipe.
A study of home fridges across 16 European countries found an average of 6.4 °C. A German survey found about 5.5 °C, and only half of the people asked had any thermometer or display to check. So a typical fridge runs a little warmer than most guidance would like.
What temperature is right?
Agencies don't quite agree, and it helps to know why. Ireland's food safety authority says fridges should sit between 0 °C and 5 °C. Germany's risk institute (BfR) says no more than 7 °C, with below 5 °C ideal. France's agency (ANSES) tells consumers to aim below 4 °C. The common thread: colder slows bacteria, so lower within the safe range is better, and nobody says warmer is fine.
Some bacteria, including Listeria, can still grow slowly below 5 °C. That is why the cold helps but does not make old food safe, and why use-by dates still matter.
How to check yours
Put a fridge thermometer on the middle shelf, away from the door, and read it after a few hours. BfR advises checking different parts of the fridge, because temperatures vary: the back is usually colder than the door. After you change the dial, give it a day before judging. Use a non-mercury thermometer, as the Irish authority points out.
Freezers should be at -18 °C or colder.
Where things go
Raw meat, poultry and fish go on the lowest shelf, just above the vegetable drawer, ideally toward the back where it's coldest. That way juices can't drip onto food you won't cook. Keep everything covered or in sealed boxes, including your meal-prep.
Let cooked batches stop steaming, split big pots into smaller shallow boxes so they cool faster, and then get them into the fridge. Don't cram it with warm food: that lifts the temperature for everything else. Leftovers are best used within 2 to 3 days, as the Irish authority says.
Colder within the safe range is better, raw goes at the bottom, and a thermometer beats guessing.
What to look for
- Readable at a glance: a clear display or dial you can see without moving food.
- A range that includes 0–10 °C: so the numbers that matter are in view.
- Non-mercury: digital or alcohol-free, safe if it breaks.
- A way to place it: a stand, magnet or hook so it sits mid-shelf rather than on the door.
A note on who should be extra careful
This is general food-safety information, not medical advice. If you are pregnant, are older, or have a weakened immune system, bacteria such as Listeria carry more risk for you. BfR advises people with weakened immune systems to eat chilled foods soon after buying, long before the date on the pack. Ask your doctor, midwife or dietitian which foods to avoid.