coldest area
Sensitive foods must be stored there quickly after purchase.
14Food security
Cold chain: transport, breakdown and sensitive food
The temperature limits the multiplication of many microorganisms without removing them. Purchase, transport, storage, refrigerator opening and electrical failure form a single chain: each break shortens the safety margin.
AnswerThe essential first
In practice
The short answer
Keep the coldest area of the refrigerator between 0 and 4 °C and the freezer around -18 °C. During a breakdown, leave the doors closed, use a thermometer and cooler if necessary, and then apply the official instructions depending on the duration, temperature reached and type of food. Never taste to decide.
freezer
This temperature preserves freezing without sterilizing food.
taste to check
The smell and taste do not reveal all microbiological hazards.
01Understanding the situation
The moments when the cold is easily lost
Exhibitions add up between radius, transport, storage, service and remains. Anticipate heat and unforeseen delays.
In the store
Take refrigerated and frozen at the end and check for packaging, furniture temperature and deadline.
During transport
Use an insulated bag or cooler and come in directly, especially in high heat.
With an outdoor meal
Keep food sensitive to cold until service and quickly put it back in the cooler.
During a breakdown
Note the time, keep the doors closed and check the electricity supplier's information.
After thawing begins
Do not refreeze by reflex; follow the instructions for the product and the temperature actually reached.
02Step by step
Protect food without improvising
Prepare the material before you need it and use the temperature, duration and nature of the food to decide.
Install a thermometer
Place it in the useful area of the refrigerator and check regularly that it remains between 0 and 4 °C.
Organize areas
Store prepared meats, fish and dishes in the coldest part, separated from ready-to-eat foods.
Preparing for transport
Mix isothermal bags, coolers and clean cold blocks before shopping or traveling.
Response to failure
Keep refrigerator and freezer closed and raise start time and temperature if available.
Prioritize sensitive foods
Identify meat, fish, dairy products, cooked dishes and leftovers that require quick decision.
Apply the official instructions
Consider the duration, measured temperature and local recommendations, without relying on the smell.
Clean before restocking
Remove leaked packaging, clean surfaces and restore the correct temperature before filling.
03Decision points
Decide what to keep
The context determines the right measure. Use these markers to choose the next action and when to ask for help.
Cold maintained and known temperature
Keep according to the normal date and conditions, using first the most fragile products.
Temperature or unknown duration
Be careful with perishable foods; in case of doubt, throw them away without tasting them.
Defrosted product
Don't refreeze it as it is. Follow the labelling and official recommendations according to its condition and temperature.
In practiceObserve and understand
Measure in the right place and record the right time
The refrigerator setting does not establish food temperature. Zones vary by appliance; consult its instructions. The product label states its own storage requirements.
Measure
Identify the coldest zone and use a thermometer.
Store
Separate and wrap food; prevent drips from raw products.
Date
Record preparation, opening and time out of refrigeration.
| Benchmark | Meaning of the reference | Limit |
|---|---|---|
| 0 to +4 °C | ANSES recommendation for the refrigerator’s coldest zone. | Also follow the product-specific instructions. |
| Within 2 hours at the latest | Refrigeration after preparing a meal at home. | This time limit is not a rule for sorting all foods after a power cut. |
| Appliance instructions | Location of zones and operating conditions. | The thermostat number is not a measured temperature. |
Keep in mind
After a power cut, keep a timeline and consult the relevant guidance. Smell and taste cannot guarantee food safety.
References for these explanations
04Not to be done
Frequent errors
- Overfill the refrigerator to the point of preventing air circulation.
- Often open doors during a breakdown to control food.
- Leave sensitive races in a warm vehicle.
- Relying solely on smell, appearance or taste.
- Automatically refreeze a product that has started thawing.
Important limitPregnant, very young, elderly or immunocompromised people are more exposed to the consequences of a food infection. For a perishable commodity whose cold-out or temperature is unknown, prudence takes precedence over recovery of the product.
Frequently Asked Questions
Where to measure the temperature of the refrigerator?
In the area for the most sensitive food, which varies according to the equipment. Check the package leaflet and see the inside signs.
Does a cooler replace a refrigerator?
Only temporarily if it contains enough cold, remains closed and allows to maintain a suitable temperature.
Can we taste a food after a breakdown?
Not to judge his safety. Some microorganisms or toxins do not alter the smell or taste.
Why don't you just refreeze?
Defrosting allows microorganisms to multiply as temperature increases. Refreezing does not eliminate them.
Check implementation
These points serve as a reminder to prepare the action. The boxes are not registered.
Follow the path of contamination
A board, plate or hand can transfer an agent to a ready-to-eat food. Examine transfers and order of tasks in kitchen →
Sources used
These institutional references provide a means of checking the guide and accessing the full recommendations.
PratiqueCheck before deciding
Votre liste de vérification
- Vérifier la température mesurée, pas seulement le réglage.
- Identifier aliments fragiles et durées hors du froid.
- Après une panne, noter heure et durée avant de trier.
- Ne pas goûter un aliment pour tester sa sécurité.
Use alongside the guide’s steps, limitations and sources.
Folder Illustrations
Images generated by artificial intelligence to put the subject in context.
Image generated by artificial intelligence. Fictional AI-generated scene, not medical evidence or a diagnosis.