How often should I check the freezer temperature?

Date modified: 22nd September 2025 | This FAQ page has been written by Pilla Founder, Liam Jones, click to email Liam directly, he reads every email. Or book a demo to see how hospitality businesses use Pilla to manage food safety.

You should check and record freezer temperatures twice per day. The ideal temperature should be -18°C (0°F) or below.

Do I need to document the freezer temperature if the temperature is within range?

Yes absolutely, you still need to document the freezer temperature. By doing this you are documenting that the freezer is working correctly and this is important to show food hygiene inspectors when they arrive.

UK Official Guidance

USA Official Guidance

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What's the correct temperature for a freezer?

The ideal freezer temperature should be -18°C (0°F) or below to halt all bacterial activity, ensuring food safety and preventing spoilage.

Can I refreeze food that has started to defrost?

No, you should never refreeze food that has started to defrost. Once food begins to defrost, it should either be used immediately or discarded to avoid safety risks.

What do I do if the freezer temperature goes above -15°C?

If your freezer temperature rises above -15°C, follow these steps: 1. Wait one hour and check the temperature again. 2. If it remains above -15°C, move all food to another freezer. 3.

How do I know if frozen food has gone bad?

To determine if frozen food has gone bad, look for these signs: grayish-brown leathery spots indicating freezer burn, improper wrapping, and storage above -18°C (0°F).

Should I defrost the freezer manually or wait for auto-defrost?

If your freezer has an auto-defrost feature, it is recommended to use it as this method is the most efficient at maintaining the freezer.

Can I still serve food with freezer burn?

If there's only slight freezer burn, you can cut away the affected areas either before or after cooking. For heavily freezer-burned food, it is best to discard it due to quality concerns.

How long can I keep meat in the freezer?

Fresh meat should ideally be used within one month of freezing to maintain optimal quality.

What's the procedure if the freezer breaks down?

If your freezer breaks down, you should: 1) Check if the food inside is still frozen solid. If yes, quickly transfer it to another freezer.

How often should I clean the freezer?

You should conduct weekly checks on the freezer's condensers, vents, seals, and lids to ensure they are clean and in good condition.

What should I check during weekly freezer maintenance?

During weekly freezer maintenance, ensure to check: 1. Condensers for cleanliness and unblocked paths, 2. Vents to ensure they are clear of debris and allow proper airflow, 3.

If the power goes out, how long will food stay frozen?

If the power goes out, the duration that food will stay frozen depends on not opening the freezer door. If the food remains hard and is covered in ice, it can be transferred to another freezer.

What do the grey spots on frozen food mean?

Grey spots on frozen food, known as freezer burn, occur when air reaches the food's surface, causing dehydration and oxidation.

How can I tell if my freezer is overloaded?

You can determine if your freezer is overloaded by checking for inadequate space around the interior and back of the unit to allow for air circulation.

How do I label frozen food properly?

When labelling frozen food, it's important to include three key pieces of information: the production date, a use-by date (generally one month from production), and the allergens present in the food.