Why cool rooms don’t stay clean

Many people find that no matter how much they clean their cool rooms, their system quickly begins to show inefficiencies causing costly stock damage and increased energy consumption.

The reason – ‘cleaning’ isn’t enough.

There are proven problems with traditional cleaning methods. Firstly, cleaning does not attack the source, only the symptoms so it cannot provide residual protection from recontamination.

Secondly, as cleaning does not return cool rooms to optimum operations, the Forced Draft Coolers (FDCs) and Compressors are continuously under ‘load’, using excessive energy.

Thirdly, cleaning cannot bring the set temperature down for long — therefore risking the important goods you have in your cool rooms. Lastly, as the microbial contaminants are not removed from cleaning, over time these will have a severe and costly corrosive effect on cool room assets.

The solution to these problems can be found through Aeris Hygiene Services, who offer a patented multi-enzyme and anti-microbial performance solution which can alleviate these problems.

Aeris Hygiene Services delivers Cool Room performance solutions through the use of the AerisGuard™ technology which has a residual action, preventing colonisation of Cool Room surfaces for extended periods.

Benefits of Aeris Hygiene Services:

A complete remediation and preventative treatment by Aeris Hygiene Services can:

1. Up to 250% improvement in airflow

2. Up to 10% reduction in Cool Room energy

3. Increased IAQ increases shelf life and reduces spoilage

Some frequently asked questions include:

I have never cleaned my FDCs before, why do I need to do it now?

The answer is that typical refrigeration systems continuously recirculate unfiltered air through the FDC. This exposes the coil of the FDC to high levels of contamination. When combined with the natural condensation that forms on the FDC the system becomes contaminated.

Because this contamination builds up gradually and is deep inside the unit it goes un-noticed. From the moment a system without AerisGuard is turned on it is starting to build up contamination.

What exactly is causing the problems? Biofilm. A biofilm can be broadly defined as an aggregation of micro-organisms that have established contact with a surface and between each other by expressing polymeric substances.

Micro-organisms commonly go through stages of attachment, growth and dispersal to develop complex structures and relationships that have been described as “slime cities”. In fact the biofilm “lifestyle” may well be the most common mode of existence in the natural environment.

Biofilms form at many types of surfaces but one of the most common is where water is in contact with a solid surface as the two requirements for biofilm to grow are the presence of micro-organisms and moisture. Examples of this occurring is in dental plaque or the slippery coating on a rock.

“Biofilms are the prominent life form of micro-organisms and account for over 60% of human infections and virtually all, chronic, recurrent and implanted device associated infections.”(Center for Disease Control & Prevention, 2000).

How does AerisGuard provide “active” protection for my cool room?

The AerisGuard treatments consist of biocides impregnated into slow release polymers that provide 6 month residual protection from continuous microbial growth. The polymers slowly dissolve in the moisture provided on the surfaces to release a trace amount of biocide. This biocide actively prevents the formation of biofilm.

What types of cold storage do Aeris Hygiene Services remediate?

• Fast food franchise restaurants

• Large scale refrigerated warehouses / facilities — of all shapes and sizes

• Refrigerated trucks

• Refrigerated sea-freight containers

• Government owned facilities such as hospitals and rest homes

For more information or to find out about their special offers, visit or ring 1300 790 895.

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