Commercial fridges and freezers need to keep products at the right temperature. This is important for food safety, product quality, stock control and the smooth running of your business.
If a fridge is too warm, chilled food may not stay within the required temperature range. If a freezer is too warm, frozen stock may soften, partially defrost or become unsuitable for sale or service. If equipment is too cold, some products may freeze, dry out or lose quality.
For most UK food businesses, the key figures to understand are simple. Chilled food should generally be kept at 8°C or below, while many businesses aim to run fridges between 0°C and 5°C to allow for normal temperature changes during use. Freezers are commonly set at around -18°C or colder.
This guide explains what temperature a commercial fridge or freezer should be, how to check it, what affects temperature performance and what to do if your refrigeration equipment is not staying cold enough.
You can also browse our full commercial refrigeration range, compare undercounter fridges, view chest freezers, or read our Commercial Refrigeration Buyer’s Guide.
Commercial Fridge And Freezer Temperatures: Quick Answer
As a practical guide, commercial fridges used for chilled food should usually be set between 0°C and 5°C, with food kept at 8°C or below. Commercial freezers are usually kept at around -18°C or colder.
| Equipment Type | Typical Target Temperature | Best For |
|---|---|---|
| Commercial fridge | Usually 0°C to 5°C | Chilled food, ingredients and prepared products |
| Chilled display unit | Usually 0°C to 5°C | Customer facing chilled food and drinks |
| Bottle cooler | Set according to drinks and service needs | Bottled drinks, cans, mixers and soft drinks |
| Commercial freezer | Usually -18°C or colder | Frozen food, ingredients and bulk stock |
| Blast chiller | Used for rapid cooling, not long term storage | Cooling cooked food quickly before storage |
Always check the manufacturer guidance for your specific unit and follow your own food safety procedures.
What Temperature Should A Commercial Fridge Be?
A commercial fridge used for food storage should normally be cold enough to keep chilled food safely within the required range.
In practice, many businesses set commercial fridges between 0°C and 5°C. This gives a useful margin because fridge temperatures can rise temporarily when doors are opened, new stock is added or the room temperature increases.
A commercial fridge may be used for:
- Fresh ingredients
- Dairy products
- Cooked meats
- Prepared food
- Sandwich fillings
- Chilled desserts
- Ready to eat products
- Back of house chilled storage
The important point is that the food itself needs to stay at the correct temperature. The display on the fridge gives a useful indication, but businesses should also check and record temperatures as part of their normal food safety routine.
What Temperature Should A Commercial Freezer Be?
A commercial freezer is usually kept at around -18°C or colder.
This helps keep frozen products properly frozen and suitable for storage. If the freezer temperature rises too much, products can begin to soften or partially defrost, which may affect quality and safety.
Commercial freezers are commonly used for:
- Frozen ingredients
- Frozen meals
- Ice cream
- Prepared food
- Bulk frozen stock
- Backup storage
- Food production storage
Freezer temperature can vary when doors are opened, warm products are added or the unit is overfilled. For this reason, regular checking is important.
Browse our chest freezers.
Why Do Commercial Fridges Usually Aim For 0°C To 5°C?
The reason many commercial fridges are set between 0°C and 5°C is to provide a safe operating margin.
Chilled food should generally be kept at 8°C or below. However, if a fridge is set close to 8°C, normal use could push the temperature above that level. Every time the door opens, warm air enters the fridge. During a busy service, this can happen repeatedly.
By setting the fridge lower, usually around 0°C to 5°C, the equipment has more room for normal fluctuations while still helping food stay within the required range.
This is especially important in:
- Busy commercial kitchens
- Cafes and food to go counters
- Restaurants
- Hotels
- Care homes
- Schools and catering kitchens
- Any business with frequent fridge access
Commercial Fridge Temperature Vs Food Temperature
It is useful to understand the difference between the fridge air temperature and the food temperature.
The digital display on a fridge usually shows the air temperature inside the cabinet or the temperature measured by the unit sensor. This may not always be exactly the same as the temperature of the food inside.
Food temperature can be affected by:
- How long the food has been inside the fridge
- How warm the food was when it was loaded
- How full the fridge is
- How often the door is opened
- Where the food sits inside the cabinet
- Whether airflow is blocked
- Whether the door seals properly
This is why commercial kitchens often use separate thermometers and temperature records rather than relying only on the fridge display.
What Temperature Should A Display Chiller Be?
A display chiller should keep chilled products at a suitable temperature while presenting them clearly to customers.
For chilled food, the same general food safety principle applies. Products should be kept cold enough and monitored regularly. Many businesses aim for a display chiller temperature between 0°C and 5°C, while making sure food remains within the required chilled range.
Display chillers are commonly used for:
- Sandwiches
- Salads
- Wraps
- Desserts
- Chilled drinks
- Packaged food
- Grab and go products
Because display chillers are often customer facing, doors may be opened often and products may sit closer to lights, glass and warmer air. Positioning, loading and regular checks are therefore important.
Browse our display chillers.
What Temperature Should A Bottle Cooler Be?
Bottle coolers are usually used for drinks rather than high risk chilled food.
The right temperature depends on the drinks being stored, how cold you want them served and how quickly stock is replaced during service. A bar, pub or cafe may set bottle coolers differently depending on whether they are storing bottled beer, soft drinks, mixers or water.
Bottle coolers are useful for:
- Bottled beer
- Cider
- Soft drinks
- Canned drinks
- Mixers
- Bottled water
If a bottle cooler is being used for food rather than drinks, check that the unit is suitable and follow the correct food temperature requirements.
Browse our bottle coolers or read our Bottle Cooler vs Display Chiller guide.
What Temperature Should An Undercounter Fridge Be?
An undercounter fridge used for chilled food should usually follow the same temperature approach as other commercial fridges.
Many businesses aim for 0°C to 5°C, while making sure food stays at 8°C or below. Because undercounter fridges are often used in busy kitchens and bars, door opening frequency can be high.
Undercounter fridges are useful for:
- Ingredient storage
- Prep areas
- Behind bar chilled storage
- Small kitchens
- Cafes
- Compact workspaces
Do not overfill an undercounter fridge. These units need airflow inside the cabinet to keep products evenly chilled.
Browse our undercounter fridges.
What Temperature Should A Chest Freezer Be?
A chest freezer should usually be kept at around -18°C or colder.
Chest freezers are commonly used for bulk frozen stock, so organisation is important. If staff have to leave the lid open for too long while searching for products, the temperature can rise and the unit has to work harder to recover.
To help maintain freezer temperature:
- Keep the lid closed when not in use
- Organise products clearly
- Avoid overfilling the freezer
- Do not block vents or airflow areas
- Check seals regularly
- Defrost or maintain the unit as recommended
- Record freezer temperatures as part of your routine
A well organised freezer is usually easier to keep at a stable temperature.
How Often Should Commercial Fridge And Freezer Temperatures Be Checked?
Commercial fridge, chiller and freezer temperatures should be checked regularly as part of your food safety routine.
As a minimum, many food businesses check refrigeration temperatures at the start of each working day. In busy kitchens, checks may also be carried out during service, after deliveries or at closing.
Temperature checks are useful because they can help you spot problems early, before stock is affected.
A simple checking routine could include:
- Checking fridge temperatures at opening
- Checking freezer temperatures at opening
- Checking display chillers before service
- Checking temperatures after large deliveries
- Recording readings in a temperature log
- Taking action if a unit is too warm
Temperature records also help show that the business is monitoring equipment properly.
How To Check Commercial Fridge Temperatures Properly
Do not rely only on whether food feels cold.
A proper temperature check should use a suitable thermometer, temperature probe or built in equipment reading as part of your business procedure.
When checking temperatures:
- Use a clean, suitable thermometer
- Check the fridge display if it has one
- Check food or product temperatures where required
- Record the temperature and time
- Look for unusual changes compared with previous readings
- Check that the door closes properly
- Make sure airflow is not blocked
- Follow your own food safety system
A thermometer placed inside the unit can also help confirm whether the internal temperature is stable.
Why Is My Commercial Fridge Temperature Too High?
If a commercial fridge is too warm, there are several possible causes.
Common reasons include:
- The door has been opened too often
- The fridge has been overloaded
- Airflow inside the cabinet is blocked
- Warm stock has been loaded into the fridge
- The door seal is damaged or dirty
- The unit is positioned too close to heat sources
- The room temperature is too high
- The condenser or vents are dirty
- The thermostat is set incorrectly
- The unit has a fault
If the fridge is too warm, do not simply turn the dial colder and ignore it. Check the cause, assess the food inside and follow your food safety procedure.
For a fuller troubleshooting guide, read our upcoming Why Is My Commercial Fridge Not Cooling Properly? guide.
Why Is My Commercial Freezer Temperature Too High?
A freezer that is not holding temperature can quickly become a problem for frozen stock.
Common causes include:
- The lid or door being left open
- Damaged door seals
- Heavy ice build up
- Poor airflow
- Overloading
- Warm products being added
- Blocked vents
- Poor room ventilation
- High surrounding temperature
- A fault with the unit
If frozen products have softened, partially defrosted or risen above your accepted temperature limit, follow your food safety procedures before using or selling them.
How To Keep Commercial Refrigeration At The Right Temperature
Good daily habits can make a big difference to refrigeration performance.
To help keep commercial fridges and freezers at the right temperature:
- Keep doors closed as much as possible
- Do not overload shelves
- Allow space for air to circulate
- Keep products organised
- Load new stock correctly
- Let suitable cooked food cool properly before chilled storage
- Keep units away from heat sources where possible
- Check and clean door seals
- Keep vents clear
- Clean condenser areas where accessible
- Record temperatures regularly
- Arrange servicing where required
Most temperature problems are easier to manage when they are found early.
Do Not Overload Commercial Fridges And Freezers
Overloading is one of the most common reasons refrigeration equipment struggles.
A fridge or freezer needs air to move around the products inside. If shelves are packed too tightly, cold air may not circulate properly and some areas may become warmer than others.
Overloading can also make it harder for staff to find products, which means doors stay open for longer.
To avoid overloading:
- Leave gaps around products where possible
- Do not block fans or vents
- Use shelving correctly
- Rotate stock regularly
- Remove items that should not be stored in the unit
- Use additional refrigeration if peak stock levels are too high
If your fridge or freezer is always full, it may be a sign that the business needs a larger or additional unit.
Check Door Seals And Closures
Damaged or dirty door seals can let warm air into a fridge or freezer.
This can make the unit run harder, increase energy use and make it more difficult to maintain the correct temperature.
Check that:
- Doors close fully
- Seals are clean
- Seals are not split, loose or damaged
- No packaging is stopping the door from closing
- Sliding doors move smoothly
- Lids sit flat on chest freezers
Door seal checks are simple, but they can prevent many temperature problems.
Positioning And Ventilation Matter
Commercial refrigeration needs space to release heat.
If a fridge, freezer or chiller is pushed tightly against a wall, boxed in, blocked by stock or placed close to hot equipment, it may struggle to keep products cold.
Before positioning refrigeration equipment, check:
- Manufacturer clearance guidance
- Airflow around vents
- Nearby ovens, grills or radiators
- Sunlight through windows
- Room temperature
- Access for cleaning
- Access for servicing
A good location helps the unit perform more efficiently and can reduce unnecessary strain on the system.
What To Do If A Commercial Fridge Is Too Warm
If a commercial fridge is too warm, act quickly.
Useful steps include:
- Check the temperature again with a suitable thermometer
- Check whether the door was left open
- Check whether the unit is overloaded
- Check whether airflow is blocked
- Check the temperature setting
- Check door seals
- Move affected food only if your food safety procedure allows it
- Record the issue and the action taken
- Arrange repair or servicing if the problem continues
If food safety may have been affected, follow your own food safety management system and seek appropriate advice before using the food.
What To Do If A Commercial Freezer Is Too Warm
If a freezer is too warm, the first step is to protect the stock and find the cause.
Check:
- Whether the door or lid was left open
- Whether stock has softened or defrosted
- Whether the freezer is overloaded
- Whether there is heavy ice build up
- Whether the seals are damaged
- Whether the unit has enough ventilation
- Whether the temperature setting has changed
- Whether the power supply is working
If frozen food has warmed above your accepted limit, follow your food safety procedure before keeping, refreezing, selling or using it.
Commercial Refrigeration Temperature Log
A temperature log helps your business keep track of fridge and freezer performance.
A simple log can include:
- Date
- Time
- Unit name or number
- Temperature reading
- Name or initials of the person checking
- Any issue found
- Corrective action taken
Temperature logs are especially useful when there are several refrigeration units on site. They make it easier to spot patterns, such as one fridge slowly getting warmer over time.
Recommended CoolEasy Refrigeration Ranges
Commercial Refrigeration
Browse the full commercial refrigeration range if you need fridges, freezers, chillers or specialist cooling for your business.
Undercounter Fridges
Choose undercounter fridges for compact chilled storage in kitchens, bars, cafes and prep areas.
Chest Freezers
Choose chest freezers for frozen food, ingredients, bulk stock and backup freezer storage.
Display Chillers
Choose display chillers for customer facing chilled drinks, snacks, sandwiches and grab and go products.
Bottle Coolers
Choose bottle coolers for chilled bottled drinks, cans, mixers and soft drinks in bars, pubs and hospitality spaces.
Blast Chillers
Choose blast chillers if your business needs to cool cooked food quickly before storage.
Commercial Fridge And Freezer Temperature Checklist
Use this checklist to help keep commercial refrigeration under control:
- Set food fridges to a suitable chilled temperature
- Aim for 0°C to 5°C where appropriate
- Keep chilled food at 8°C or below
- Keep freezers around -18°C or colder
- Check temperatures regularly
- Record temperatures in a log
- Do not overload units
- Keep airflow clear
- Check door seals
- Keep doors closed when not in use
- Keep units away from heat sources where possible
- Clean and maintain equipment regularly
- Take action quickly if temperatures are outside range
Commercial Fridge And Freezer Temperature FAQs
What temperature should a commercial fridge be?
A commercial fridge used for chilled food is often set between 0°C and 5°C, with chilled food kept at 8°C or below. Always follow your food safety procedures and manufacturer guidance.
What temperature should a commercial freezer be?
A commercial freezer is usually kept at around -18°C or colder to keep frozen products properly frozen.
Is 8°C safe for a commercial fridge?
Chilled food should generally be kept at 8°C or below, but many businesses set fridges lower, often around 0°C to 5°C, to allow for normal temperature fluctuations.
Why is my commercial fridge above 5°C?
It may be caused by frequent door opening, overloading, blocked airflow, warm stock being added, poor ventilation, damaged door seals, a dirty condenser or a fault with the unit.
How often should commercial fridge temperatures be checked?
Commercial fridge temperatures should be checked regularly. Many food businesses check them at least once a day, often at the start of the working day.
Can I rely on the fridge display?
The display is useful, but it may not always reflect the temperature of every product inside. A separate thermometer or food temperature check may be needed as part of your business procedure.
What should I do if my fridge is too warm?
Check the temperature, look for obvious causes, assess the food inside, record the issue and follow your food safety procedure. If the problem continues, arrange servicing or repair.
What should I do if my freezer is too warm?
Check whether the door was left open, whether products have softened, whether the freezer is overloaded and whether there is a fault. Follow your food safety procedure before using or selling affected stock.
Should drinks fridges follow the same temperature rules?
If the unit only stores drinks, the temperature can be chosen around product and serving needs. If the unit stores food, follow the correct chilled food temperature requirements.
Why does fridge temperature rise during service?
Temperature can rise when doors are opened frequently, warm stock is added or airflow is blocked. This is why commercial fridges should be correctly loaded, positioned and checked regularly.
Can overloading a fridge affect temperature?
Yes. Overloading can block airflow and make it harder for the unit to keep products evenly chilled.
When should I replace a commercial fridge or freezer?
If a unit regularly fails to hold temperature, needs frequent repair, is too small for your stock or no longer suits your workflow, it may be time to replace it.
Final Advice: Temperature Control Is About More Than The Display
Commercial refrigeration temperature control is not just about setting a number on the display.
The unit needs to be the right size, positioned correctly, loaded properly, cleaned regularly and checked as part of your normal business routine.
For chilled food, many businesses aim for 0°C to 5°C and make sure food remains at 8°C or below. For frozen stock, freezers are usually kept around -18°C or colder. For display chillers, bottle coolers and specialist refrigeration, the right setting depends on what is being stored and how the equipment is used.
If your current refrigeration equipment is struggling to hold temperature, it may need cleaning, servicing, better airflow or replacement.
Explore our commercial refrigeration range, compare commercial fridges and freezers, or speak to the CoolEasy team for help choosing the right refrigeration equipment for your business.