What you need to know:

Medical Fridge Temperature and Storage Requirements

The correct medical fridge temperature for vaccines sits between +2°C to +8°C, with +5°C considered the safe middle ground. While it sounds like a simple range to achieve, a busy clinic where people are opening the door, new stock is being loaded or the power could cut out overnight makes managing it not as straightforward.

It takes more than a reliable thermostat to hold that temperature. Having a suitable fridge that can recover from any temperature loss, record what happens overnight and maintain even conditions is just as important. This is what you need to know about choosing a medication fridge and maintaining temperatures.

Medical Fridge Temperature and Storage Requirements

What Temperature Should a Medical Fridge Be?

For vaccines, a medical fridge should be set between +2°C and +8°C, with the Australian Government’s Strive for 5 guidelines recommending aiming for a middle ground of +5°C. Other products may require a different medication fridge temperature, which can be confirmed with the manufacturer.

Temperature What it may mean for vaccines
Below +2°C Below the recommended minimum temperature with potential for frozen, damaged or destroyed vaccines and stock.
Around +5°C The midway between the highest and lowest recommended temperature that allows room for normal fluctuations.
Above +8°C Above the highest recommended temperature which may affect the potency of vaccines.
 

Setting the fridge above or below the range both matter, as freezing can be just as damaging as overheating. 

Can You Use a Bar Fridge for Medication?

No, a domestic or bar fridge should not be used to hold vaccines or medicines that rely on a controlled and recorded range. These types of fridges are designed for food where small changes in temperature are not as critical.

There are a few problems that can come from not storing temperature-sensitive stock in the right type of fridge, including:

  • Uneven temperatures from warm and cold spots in different parts of the fridge.
  • A freezer compartment or cold plate may expose any nearby stock to sub-zero temperatures.
  • The fridge may be slow to correct a rise in temperature, such as after a door has been opened.
  • There may be no alarm or temperature history to show what has happened overnight.
  • The displayed setting doesn’t prove the temperature stayed within that range.

The current Australian Government guidance even states domestic refrigerators, including bar fridges, should not be used for storing vaccines.

What Makes a Medical Fridge Different

Unlike regular refrigerators, purpose-built medical and vaccine fridges are designed to maintain stable, monitored storage. Some of the features that make them fit for the job are:

  • Dynamic fan-forced cooling that circulates cold air throughout the fridge cabinet.
  • Automatic defrost to manage ice without relying on manually defrosting the fridge.
  • Digital controls and displays keep the set temperature and current reading visible.
  • Temperature data loggers record exactly how the fridge has performed over time, such as overnight or on weekends.
  • Battery-backed controllers continue monitoring temperatures even if power is disrupted.
  • Double-glazed glass doors make it easy to check stock before opening the cabinet to retrieve it.
  • Plastic-coated steel shelves help keep stock organised while leaving enough airflow around each product.

Monitoring and Temperature Logging

The current Strive for 5 chart advises vaccine providers to record the current, minimum and maximum temperatures of their medical fridges twice daily, once in the morning and once in the afternoon. Your practice or facility should follow the latest guidance, instructions and procedures for your setting from the manufacturer.

You can use a combination of manual checks and continuous logs, with each giving you a different picture of what’s happening or happened within your fridge.

Manual reading Continuous data logger
Shows the temperature, minimum and maximum of when staff checked it. Records temperatures throughout the day and night.
Helps staff spot an issue during business hours. Shows when an excursion began, how far the temperature moved and how long it lasted.
It relies on checks being completed and recorded. Captures temperature changes on weekends, public holidays and overnight.
 

It’s important both checks are maintained and utilised with the logger also providing a timeline if you suspect a temperature breach.

What to Do If the Temperature Goes Out of Range

If the temperature falls below +2*C or goes above +8°C, it may cause a cold chain breach. While the vaccines may not automatically need to be discarded, do not use them until you have received advice. In the meantime:

  1. Stabilise the temperature and keep the affected stock between +2*C and +8°C or move it under the practice’s backup plan.
  2. Label each vaccine or medication clearly with ‘Do Not Use’ and ‘Do Not Discard’, separating them from unaffected stock.
  3. Record the current, minimum and maximum reading, and check the data logs and the estimated length of the excursion.
  4. For National Immunisation Program vaccines, contact your relevant state or territory health authority. Contact the manufacturer or supplier for privately purchased stock.
  5. Then, wait for advice before using or discarding any affected vaccines.

It’s important the health authority, manufacturer or supplier assesses the affected product and decides if it’s suitable for use or not.