Our food production customers enjoy the many benefits of fabric ducting. Fabric ducting, or air socks are:
- Fast to install due to their lightweight design,
- More efficient, having the ability to increase the primary air flow-rate by almost 50 times that of standard air ducting, and
- Flexible, so their layout can be tailored to accommodate specific site requirements.
And they are suitable for all types of food processing areas, from raw ingredient handling areas to packaging. But what about hygiene? How do you keep fabric ducting clean?
Like any other ducting, air socks are prone to mould and bacterial growth. The air distribution holes in fabric ducting enable highly effective air distribution. This actually helps prevent moisture stagnation that would usually result in condensation, and potentially mould, in the ducting. However, some food production plants are more prone to mould than others, and there are certain times when the risk of mould forming is greater. One of these times is during machinery clean-down where hot water sprays are used. Heat and moisture create humidity and a higher risk of mould spores forming internally and externally on the fabric ducting.
Note: A tip is to leave the Air Handling Systems (AHUs) on during factory clean downs. This will ensure that dry and cool air continues to flow through the air sock, helping to prevent mould growth.
Mould and microorganisms growing in the system will lead to a reduction in Indoor Air Quality (IAQ). Controlling the level of mould is especially important in a food manufacturing facility. It has the potential to carry disease and infection, which are easily transferred if they come into contact with food products. Ductwork carries air directly to workers’ breathing zones and production areas where it can affect food. Indeed, a range of adverse health affects have been reported following consumption of mouldy foods. These include nervous system impairment and liver damage. It is, therefore, essential to keep ductwork as clean and mould-free as possible. For more information about mould, click here.
In order to keep fabric ducting clean and hygienic, we recommend that it is professionally cleaned every 6 months to a year. Another benefit of fabric ducting is that it can be cleaned without altering its characteristics or performance over time. The HVDS Hygiene Team will remove, wash and sanitise your air socks and then replace them in their original positions. Our laundering service provides a deep clean to help reduce further growth of mould. We provide many of our customers with a spare set of like-for-like bespoke air socks to replace the dirty ones during cleaning.
Interested in fabric ducting for your production plant? Following a survey of your site, HVDS will supply and install air socks tailored exactly to your requirements. For example, if you need airflow holes to distribute air to one section, but not to another within the same production area, we can supply air socks to this specification. In fact, there is virtually no limit to what we can provide.
For more information about fabric ducting, click here. To discuss fabric ducting cleaning for your food production site, please get in touch on 01785 256 976, or email us at firstname.lastname@example.org. We’d be happy to help.
At HVDS we help clients in the Food Industry with cleaning and maintenance of air filtration and extraction systems. Our hygiene teams work to ensure that systems are suitable for use, hazard free and audit compliant. A typical job for us that meets this criteria is Extract Flue Cleaning.
A typical brief:
Customers typically request that we go on-site in order to assess and subsequently clean their oven or fryer extract flues.
Our teams come across a range of scenarios when carrying out these jobs. Here are two examples of what the HVDS team have found on separate occasions:
The images above show two different cases of what can come from an extract flue assessment and clean – specifically an extract flue that has been poorly maintained over time. The image on the right clearly demonstrates what happens when an extract flue experiences very heavy use but has not been experiencing a regular cleaning regime.
So, what is wrong with these pictures?
The chocolate looking substance, otherwise known as “liquid firelighter”, can cause an enormous fire and safety hazard to large factories which is why cleaning, assessment and early intervention are critical.
Solving the problem – how did we proceed?
When it comes to Extract Flue Cleaning our hygiene team works to clean out the systems, leaving them in a safe and audit compliant state as you can see below.
What could have been done to avoid this situation?
A regular maintenance plan is always advised to avoid situations like the one you see above. In terms of how often you should get your flues cleaned – this timeline gives a good indication:
- Heavy use (12-16 hours a day): every 3 months
- Moderate use (6-12 hours a day): every 6 months
- Light use (2-6 hours a day): every 12 months
How can HVDS help you
At HVDS we offer free ‘behind the scenes’ surveys to give you peace of mind, as well as offering cleaning and maintenance services to keep your air and extraction systems in good working order.
Contact us today on 01785 256 976 to find out more about our clean air solutions.
At HVDS we get a lot of enquiries from customers regarding maintenance and investigation into their current systems. It is during these investigations and surveys that we come across situations like this one.
A customer requested we investigate the reason behind a lack of extraction from their Dust Extract Unit (DEU) in their ingredients blending room.
Here is what we discovered on site.
So, what is wrong with this picture?
Our investigation found that the ductwork was severely contaminated, resulting in the reduction of the DEU’s ability to extract dust.
Solving the problem – how did we proceed?
HVDS carried out a full ductwork system deep clean followed by a DEU filter change. This dramatically improved the hygiene levels by improving the Indoor Air Quality of the ingredients room.
The clean and filter change enabled the dust extractors to begin working to their full capacity once again, resulting in a clean and compliant production environment.
What could have been done to avoid this?
A regular maintenance plan is always advised to avoid situations like this one.
While an engineers time can be limited, with other responsibilities such as production maintenance and management, the time taken to carry out regular checks can be extremely beneficial and incredibly cost effective in the long run.
How can HVDS help you
At HVDS we can offer free ‘behind the scenes’ surveys to give you peace of mind and to ensure that your production environments are compliant and working correctly.
Contact us today on 01785 256976 to find out more about our air filter and extraction solutions.
Here at HVDS we are often asked to look at air filters, ductwork systems and issues with airflow. There are many issues that can be lurking behind causing trouble for food manufacturers. Here we take a look at a couple of cases where our help has been invaluable.
HVDS were recently asked to look at an issue with low airflow. Here is what we discovered on site.
What is wrong with this picture?
What you can see here is a filter that has clearly been neglected. For how long, we don’t know.
What could be done to avoid this?
A well-managed air filter regime is always possible, and it is what should have been implemented in this instance to avoid this issue. Even if engineers are busy with production maintenance, management and service of filters is crucial. In the long-term it can be costly to replace, not to mention the repercussions of dealing with any health and safety concerns that may arise from poorly maintained equipment such as this.
It’s not only filters that can get into these poor states either. Our team also recently carried out ductwork cleaning for a client and came across this… all found inside the ductwork as a result of extracting from the travel ovens.
Why is this a cause for concern?
One of the biggest causes of fires in food factories is uncleaned extraction ductwork and flues. With sites manufacturing and producing 24/7, it is crucially important to allocate time for cleaning and inspection to ensure risk is minimised.
How can HVDS help
At HVDS we have tailored solutions for your applications, we also offer free ‘behind the scenes’ ductwork surveys to give you peace of mind.
Contact us at email@example.com today or call on 01785 256 976 to find out more about our air filter and ductwork solutions.