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Tru-Fog System for Fresh Produce Displays
The relative humidity (RH) in a supermarket or large retail environment is often very low, both in the winter when heated and in the summer when air conditioned.
In these dry conditions, fresh produce will quickly lose both freshness and visual appeal as its natural moisture is lost into the surrounding atmosphere.
This can be overcome by installing a Tru-fog system, which will boost relative humidity around the product, maintain the natural moisture level within and even re-hydrate some produce.
What are the benefits of ultrasonic humidification for you?
- The quality of your produce is maintained.
- Weight loss is minimised, maximising sale potential of products sold by weight.
- Overall wastage is reduced as produce stays fresher for longer.
- The fresh produce display is visually improved and the visual impact of the
- system draws attention, generating higher sales turnover of fruit and vegetables.
- Higher turnover of other products, as your customers return more regularly to buy your higher quality fresh produce.
- Reduced labour costs, with less need to replace product or transport fresh produce to the cold store during the night.
- Bold displays can be maintained throughout the day, especially in the late afternoon and evening when most stores are running down their display.
- Energy saving potential for your cooling equipment.
- Greater control over stock management and purchasing.
What are the benefits for your customer?
- Your customers will notice that higher quality produce will stay fresher for longer at home.
- Lower prices because of less waste and labour
- Less waste at home. More gets eaten.
There are Environmental Benefits too:
- Less to throw away
- Less waste
- Reduced transport costs = CO2 Energy savings and a contribution to global food security.
The Proof - click here to select your product...
How does it work?
Super pure, filtered water is nebulised using high frequency, ultrasonic waves. This creates a dry fog of tiny water droplets, each less than 5 microns in size. Traditional misting systems have droplets of 15-20 microns. The ‘almost lighter than air’ fog spreads over the produce like a blanket, forming a cool, moist layer above and around the product without wetting.
The relative humidity around the display is raised to around 95% and as the water droplets quickly evaporate, the ambient temperature of the air will be reduced. This adiabatic effect is often called ‘evaporative cooling’. The fresh produce will no longer lose its own moisture into the ambient air and is additionally cooled, without getting wet.
Hygiene is crucial to ensure that any cold water humidification system operates efficiently and safely. To guarantee maximum quality, water for our system is both filtered and treated using a range of technologies, including:-
Reverse Osmosis Filtration – to remove bacteria, viruses, calcium and other scaling minerals which are often present in city water.
Ozone Generation – to destroy bacteria that may have entered the system through the air. Ozone is a very strong oxidizer which converts back to normal oxygen in a short time, without leaving a residue.
Ultra Violet Light Treatment – to destroy microorganisms and pathogens in the water. UV sterilisation leaves no residual chemical or radiation in the water.
Automatic Self Cleaning – The system is flushed and self cleaned with super pure water every 60 minutes.
Specialist Maintenance – Our regular service and maintenance programme will guarantee a problem free and hygienic operation.
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Pendred Speciality Produce ‘Dome’ Counter
At EuroShop 2014 in Dusseldorf, Pendred Retail launched a unique Speciality Produce Counter. The counter is refrigerated and has been designed to be a focal point within a store, attracting attention but with the benefits of Tru-fog, which maintains and improves the quality of the product being displayed in the counter – giving amazing results.
The counter certainly attracted attention at the exhibition, visitors to the show could not help stopping at the stand to take a look and ask questions. The effectiveness of the Tru-fog was evident throughout the exhibition, as the berries, asparagus and leafy produce displayed on the counter looked fresh every day – even on the last day – and the asparagus had grown in size!
We are very pleased that the counter was selected as one of the “Highlights of EuroShop” with an image being placed on the “Highlights Page” of the EuroShop website.
If you are interested in introducing the Pendred Speciality Produce ‘Dome’ Counter to your restaurant, store, supermarket, shop, hotel etc then please contact Lesley Hunt on Lesley@pendred.com.
SPECIFICATIONS:
Case Features
Step Decks 3 x 200mm
Weir Riser 120mm High
Humidity Dome 1200mm Diameter
Counter 1512mm Diameter
Colours
Exterior White
Kick Plate Grey
Interior Black
Refrigeration Data
Refrigerant Charge (KG) 0.2
Refrigerant Type R1270
Compressor—Embraco NJ9232GK
Electrical Data (230V / 50Hz) Watts / Amps
Lights (LED) 10 / 0.04
Evaporator Fans 10 / 0.04 (2x5w)
Condenser Fans 60 / 0.26
Compressor 1700 / 7.4
Maximum Running Load for Cabinet 1780 / 7.74
Number of Defrosts per 24hrs 6
Maximum Defrost Duration (Minutes) 30
Defrost Termination Temperature (C) 8
Fans Operational During Defrost Period Yes
Set Point – cut in temperature (C) -1
Differential below – cut out temperature (K) 2
* Set up data for guidance only. Final settings to be determined by Refrigeration Contractor
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Fish and Meat Fogging
Fresh Meat Sausages & Bacon
The maintenance of natural moisture in fresh meats is essential to ensure, freshness, taste, texture and appearance. Unfortunately meat can rapidly dehydrate under normal refrigerated counter conditions, taking only a few hours to become dark and unattractive. This creates a large amount of wastage, as a dry appearance seriously affects salability.
An efficient humidification system will neutralise the premature drying effect of refrigerated air and minimise dehydration from unwrapped fresh meat. Natural moisture loss is reduced by over 60%, display life is extended from 3-5 hours to 36-48 hours, while product freshness and appearance are maintained.
During the Meat Maturation process the maintenance of moisture is also of paramount importance, if the best quality product is to be consistently produced. Moisture loss often exceeds 4% over a 7 day period, which represent nearly 3Kg in weight loss from a 65Kg carcass. This moisture/weight loss would normally be reduced by around 60%, saving around 1.6Kg per carcass. A number of systems are available for maturation rooms and temporary maturation trailers.
A further benefit of ‘humidity-controlled’ maturation is that boning and cutting of meat is made easier due to the improved condition of the outer layer of the meat. This further reduces wastage when carcasses are cut into primals.
We are able to offer a number of Moisture Maintenance Systems for unwrapped Fresh Meat counters including Ultrasonic Fogging, Atomisation & Ultrasonic Humidification. The most suitable installation is determined by the type of product and the individual situation. Also a variety of humidification equipment can be retro-fitted into existing permanent or temporary meat maturation rooms.
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Fresh Fish
The mucus coating on the outer layer of fish’s skin plays a very important role in maintenance of quality and the degradation of the product. Once caught the protective mucus layer begins to break down. Causing a steady decline in the appearance of the fish as it loses its natural sheen. The breakdown of this layer is also the main contributor to those familiar bad odours.
Through maintaining a sacrificial layer of moisture on the surface of the fish, it is possible to preserve the mucus coating and that ‘just caught’ look. This not only enhances salability but also reduces the surface temperature of the product, through evaporative cooling, and diminishes moisture loss. Therefore shelf life is increased.
We also offer Misting for Fresh Fish and Meat.
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Cheese Humidification
With the storage of cheese humidity needs to be carefully controlled, with sufficient moisture to stop the cheeses drying but not so much that surfaces are wetted and unwanted moulds are allowed to form.
The storage and maturing of the many types of cheeses needs special conditions and considerable expertise. The two main elements of a controlled environment are temperature and humidity. While the need to control temperature has always been appreciated and is generally well achieved, the control of humidity has proved more elusive. In part this is due to the fact that the correct combination is perceived as difficult to achieve, hence, for example, cheeses in display cabinets are nearly always wrapped to prevent them drying and losing quality. This is because any form of refrigeration also acts as a dehumidifier. People may argue against this, and indeed the effects can be reduced by such techniques as slow fan speed and running a wet evaporator coil, but it does not get away from the fact that passing air through a cold evaporator will produce dry air looking to absorb moisture, in this case from the cheeses. This means that humidity has to be introduced to counteract the problem. The situation applies to maturing rooms, storage rooms display cabinets and even the environment within a shop.
Norman Pendred & Company have the best answer in the form of ultrasonic humidifiers. Essentially an ultrasonic humidifier produces a fog of ultra fine droplets as small as 1 to 3 microns which can be introduced in a controlled way into any area to raise the relative humidity.
Because water quality varies so much, especially with regard to degrees of hardness, it has been found that filtration and the use of Reverse Osmosis is essential both to preserve the life and effectiveness of the humidifier, as well as ensuring the purity of the moisture being introduced.
Norman Pendred & Company can provide a proven and reliable solution to almost any storage or display problem.
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