Excess humidity can lead to all kinds of problems, even in your cold storage unit. Without adequate humidity control, you can be looking at product damage or even an unsafe working environment.


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The humidity factor

Far from humidity not being a problem in commercial cold rooms, it can be really difficult to control. This is due to the airtight construction of a cold room, which is tightly sealed to optimise efficiency.

Once water gets in – either through leaving the unit doors open, washing down activities or off-gassing by the products themselves – it can become trapped inside your cold room. With no HVAC system or ventilation, there is no way for the moisture to escape, resulting in a humidity problem that can infest your cold room with mould, mildew and pests.

Cold store challenges

Location can be another challenge for your cold storage unit. Commercial cold rooms, such as those supplied by fridgefreezerdirect.co.uk/cold-rooms/integrated-cold-rooms, can be sensitive to changes in pressure if situated near areas of warm temperature, Even worse, condensation takes place when cold and warm air meet, which builds up on the doors, walls and floor of your cold storage.


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There are a number of solutions, including fans and air conditioners; however, a commercial desiccant dehumidifier has proved to be the best solution.

Fighting humidity in cold storage

A commercial desiccant dehumidifier uses a chemical to dry out the air, absorbing and dispelling the water vapour. It is a cost-effective and efficient way to remove the humidity from your cold storage and has a range of benefits over other dehumidifying methods.

The desiccant does not require humidity to condense, which means that you can avoid a frost build-up in your unit; in turn, this impacts energy efficiency. Desiccant dehumidifiers do not need to cool the air and deliver a constantly efficient rate of moisture removal.

Best practice in humidity control

Vinyl or air curtains, vapour barriers and rapid-close doors are all sensible additions to a humidity control strategy, stopping moisture dead in its tracks. Regular maintenance is a must when you want to keep your cold room working at maximum efficiency; for example, you should the check seals regularly, as unreliable seals are a sure way to let moisture enter your cold storage unit. Replacing old cracked seals is a smart way to maintain system efficiency.

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