Product/Application Dashboard

WHY COLD CHAIN HUMIDITY CONTROL?

The humidity control dialogue is a relatively new discourse in the greater food science/environmental/manufacturing debate but a crucial one nonetheless. It requires far more attention and commitment than it is currently receiving from food, health and safety professionals as well as the manufacturing; warehousing; agricultural; and people and farm animal comfort communities at large.

Controlling humidity has huge positive economic spin-offs, from keeping people and farm animals healthy, happy and productive; through to ripening and de-greening post-harvest citrus produce faster with less crop weight losses; maintaining ideal climatic conditions in moisture-sensitive manufacturing industries; to food security via less food spoilage and longer shelf life; and finally, to less meat weight losses in the abattoir and retail butchery space.

Controlling humidity has not been the challenge nor the issue to date, but keeping air moist without excessive moisture and subsequent condensation at high RH levels, is where the humidification control specialists begin to sort the men from the boys!

Producing micro-water droplets that can evaporate into the air immediately upon release, at constant high relative humidity levels and where required in zero to sub-zero ambient temperatures, is what is required in most scenarios but an assignment very few humidification control devices/companies can deliver on; sensors failing at high RH levels; and producing moisture-laden air; and high on-going maintenance costs.

If you are experiencing excess humidity in a cold chain, or conversely excessively low levels, give us a call and let’s see if we can assist. With the high cost of fresh produce, no one can afford not to get the best available advice, to reduce perishable food spoilage; increase cold chain shelf life; and reduce hanging meat weight losses!

SORBITE - Nature’s Miracle Mineral

Sorbite has just got to be one of the most amazing natural minerals ever discovered and has to be one of the very few commercial products that is used as it is found –the mineral is simply mined by hand, crushed into smaller portions, packaged in a polypropylene bag, placed in an aluminium/plastic tray and installed in a cold chain on the ceiling!

Sorbite is 100% natural mineral; non-toxic; non-corrosive; environmentally friendly; cannot be set alight; is 100% recyclable; and is the only mineral that can absorb and desorb.
Sorbite acts as a ‘scrubber’ by filtering the air inside a cold chain removing 24/7:
✔ 82% of any airborne present in cold chain
✔ up to 79% of any ethylene gas present in fresh produce cold rooms
✔ 95% of any acetic acid present in meat cold rooms

SORBITE Nature¹s miracle mineral

As the air in a cold chain moves over the mineral any airborne bacteria, food spoilage gases and acetic acids in the air are absorbed and retained – simultaneously, if there is excess moisture in the air, such moisture will be absorbed and when conditions become too dry, the retained moisture is released.

Sorbite is the only natural product that can stabilise and thereafter maintain humidity 24/7, find evidence thereof below:

Proof that they absorb excess moisture…

Under bar fridge with Sorbite filters

Under bar fridge with Sorbite filters

Under bar fridge without Sorbite filters

Under bar fridge without Sorbite filters

 

 

 

 

 

 

 

 

Finally, Sorbite reduces cold room compressor energy consumption by between 12% and 20% as the ambient temperature in the cold room is lowered and cold storage stocks will be maintained in perfect condition for a least 12 hours in the event of a power outage and no back up generator is available (provided cold rooms doors are kept shut).

What effect does it have on:

Meat

meat
Sorbite prevents hanging meat from dehydrating and losing blood thereby preventing meat weight losses by between 0,75% and 3%! You immediately know when a meat cold room has Sorbite filters installed – no, or very little sign of blood on the floor! But don’t take our word for it ask …Caroline McCann from Braeside Butchery as well as Albert Louw MD of Country Meats for their views ..

Dry/wet aging of meat

dry
Does it work for the highly profitable but expensive process dry aging of meat? Don’t ask us ask the expert Steve Maresch from Local Grill Parktown North who ages his meat for far longer than the norm – no wonder he has won mulitple Best Steakhouse awards! Wet age blood purge can be reduced by 70% to 90%

Fresh produce

We only need one pic to prove this claim…
freash
Celery Farm in Eastern Cape – Nov 2013 – celery on top in cold room with our filters for 8 days – one below in cold room for 8 days without our product

 

 

The same remarkable results are achieved in:
✔ fresh fish cold storage
✔ bakeries (no drying or cracking of cakes and icing thereon)
✔ dairy products (no more sour products, etc)
✔ general perishable cold rooms – extended shelf life right across the
board
✔ flower showcases
✔ laboratories (especially blood banks)
Even cooked and prepared foods can be kept in cold storage in prime condition from far longer than the norm

Capture

REDUCE BUTCHERY MEAT WEIGHT LOSSES

Sorbite Filters and the Meat Industry

meat cold room

What sorbite filters accomplish in butchery cold rooms:

Removes Acetic Acid
Acetic acid, in the presence of excess moisture, causes sliminess on the surface of lamb, pork and to a lesser extent beef.

Stabilises Relative Humidity
Hot air entering the cold room (during busy work shifts) gives rise to excess moisture, which in turn wets the air in the cold room, which in turn wets the surface of hanging carcasses conversely when cold room doors are kept shut for hours, the evaporator fans dry out the cold room, and the hanging meat shrinks, shrivels and drips blood as a result of having to give up moisture.

Removes Airborne Bacteria
The presence of airborne bacteria in a meat cold room gives rise to mould, yeast and bacterial growth on the walls and ceiling of the cold rooms, as well as on the surface of hanging carcasses. The airborne bacteria is also responsible for the discolouration of the exposed meat surfaces (meat turns dark red colour).

Neutralises Vapour Pressure
When humidity levels (RH) in a cold room fluctuate between periods of excess moisture and periods of dryness (see explanation above), then vapour pressure is created. Vapour pressure in turn exerts a ‘push’ effect when moisture levels are too high and a ‘pull’ effect when conditions become too dry. This results in blood purging from wet-aged meat packaging. As sorbite filters stabilise the RH, the vapour pressure is neutralised and blood purge is greatly reduced.

Results of meat weight loss trials conducted during november and december 2014 at leading chain of butcheries.

combined weight losses recorded at two butcheries in the Johannesburg area.

Results of Meat Weight Loss Trials - 1 Results of Meat Weight Loss Trials - 2 Results of Meat Weight Loss Trials - 3 Results of Meat Weight Loss Trials - 4 Results of Meat Weight Loss Trials - 5 Results of Meat Weight Loss Trials - 6

 

These weights were taken and recorded by the managers of the two butcheries 6 Polar Africa personnel were not present during either the delivery or any of the subsequent weighing sessions.

Average weight losses

Meat weight loss trials in Tshwane combined stats for 20 butcheries during 2013

Meat weight loss trials in Tshwane combined stats for 20 butcheries during 2013

The national average meat weight loss savings:
Hind Quarter between 1% and 1,45%
Forequarter between 1% and 1,27%
Whole lamb between 1,62% and 2,12%
Whole pork between 1,5% and 2,5%

Cold room relative humidity & ambient temperature readings at a franchise butchery – 22 April to 20 May 2013 the above.

Cold room relative humidity & ambient temperature - 1 Cold room relative humidity & ambient temperature - 2

The above graphs show how the cold room improved in terms of humidity and ambient temperature during the trial and the last reading shows how the cold room returned to its previous condition when the filters were removed. Since the filters had been permanently installed in June 2014, the cold room has remained within the 78% to 90% and below 4°C, viz. every quarter since installation the following are the readings: Sept 2014 RH 79% + 3°C; Dec RH 82% + 2,5°C

How Do Sorbite Humidity & Bacteria Control Filters Work?

How do sorbite humidity & bacteria control filters work

How Are The Filters Installed In A Meat Cold Room?

How are the filters installed in a meat cold room Capture

Contact us

 

EVAPORATIVE COOLING

COOLEST MISTING SYSTEM AROUND!

 

FINE FOG MISTING APPLICATIONS

Misting systems are a cost effective solution for a wide array of applications. Click on the links below to find out more.

Residential Cooling with Misting

residential-cooling1Now you can enjoy the outdoors year round. Many people are unable to enjoy their patio or yard areas during the heat of the summer. Pets and plants suffer due to intense heat. Customers say their lifestyles have been changed completely by outdoor cooling (misting system). They are no longer “trapped” inside their homes. Pets and plants are healthier.

Our Misting Systems are a simple, inexpensive and appealing way to lower temperature by 10-12 °C outdoors and indoors without wetting.

COOLING PRINCIPLE
Evaporative cooling is responsible for the chill you feel when a breeze strikes your skin. The air evaporates the water on your skin, with your body heat providing the energy.

residential-cooling2By forcing water, by means of a high pressure pump, through our specially designed misting nozzles, we create a fog made by ultra fine water droplets with an average size of less than 10 microns. These tiny water droplets quickly absorb the energy (heat) present in the environment and evaporate, becoming water vapour (gas). The energy (heat) used to change the water to gas is eliminated from the environment, hence the air is cooled.

BENEFITS

  • Lowers temperature
  • Reduces flying insects
  • Fully expandable
  • Absorbs dust and pollen
  • Special effects

Commercial Cooling with Misting

commercial-cooling1When temperatures rise into the 30°C and above, patio dining from indoors to outdoors, outside bar areas and gazebos become uninhabitable money losers. Our misting system with a misting line or fans or in combination of both can turn that space into a comfortable and profitable retreat.

Our Misting Systems are a simple, inexpensive and appealing way to lower temperature by 10-12 °C outdoors and indoors without wetting.

COOLING PRINCIPLE
Evaporative cooling is responsible for the chill you feel when a breeze strikes your skin. The air evaporates the water on your skin, with your body heat providing the energy.

commercial-cooling2By forcing water, by means of a high pressure pump, through our specially designed misting nozzles, we create a fog made by ultra fine water droplets with an average size of less than 10 microns. These tiny water droplets quickly absorb the energy (heat) present in the environment and evaporate, becoming water vapour (gas). The energy (heat) used to change the water to gas is eliminated from the environment, hence the air is cooled.

BENEFITS

  • Lowers temperature
  • Reduces flying insects
  • Fully expandable
  • Absorbs dust and pollen
  • Special effects

Industrial Cooling with Misting

Misting systems are installed with enormous advantages for air-conditioning of large indoor areas due to high benefits and reduced energy consumption.

industrial-cooling1Create a safer and more productive working environment. Cooling employees, equipment and processes can lead to happier employees and big profits. Cooler workers are safer and more productive. Cooler machines last longer and can produce more. Many processes that need cooling can be speeded up using mist cooling.

Air conditioning of large industrial warehouses, including those which need to operate with open doors and windows, was until now impossible with conventional systems. Today, however, misting systems becomes ideal for cooling large areas (industrial sheds, garages, workshops) or to dissipate high heat emissions from industrial processes (foundries, machinery). Cooling effect can also be combined with humidity control to increase productivity in specific industries (paper, wood, textiles).

industrial-cooling2Water is sprayed under pressure by special patented nozzles capable of generating very fine droplets, of less than 10 microns, which are immediately absorbed by the air without wetting surfaces and objects below. The results are significant: low cost of installation and operation, immediately effective, cooling effect is located only in areas of interest, possibility of installation in an enclosed, semi-open and open environment.

MINIMUM COSTS
Important aspect of misting systems are highly limited costs if compared to traditional industrial air conditioning. Installation is easy and fast since systems are supplied in modular kit, with polyamide tubing and quick couplings. Or misting systems are designed to operate at low running cost and requires minimum maintenance requirements.

BENEFITS

  • Increase overall productivity of your staff
  • Air conditioning in localized areas of interest
  • Control of dust, gases, fumes and other harmful emissions
  • Immediate temperature reduction
  • Installation costs reduced by 75%
  • Considerable energy savings
  • Easy and inexpensive maintenance
  • Reduced heat stress

Livestock Cooling with Misting

Birds and animals, like humans, are happier and more productive when comfortable. Misting reduces heat stress and increase productivity.

livestock-cooling3Misting provides heat stress relief for all categories of poultry. Mortality is dramatically reduced. Stress-free broilers continue to eat and grow. Layers produce more eggs. Breeders are more active and produce higher quality eggs. In the hog world, misting increases the farrowing sow’s appetite, which improves milk production. This, in turn, boosts the litter weight at weaning, increases the size of future litters and allows the sow to go back into heat quicker. Cool conditions increase sex drive and sperm count, as well as sexual development.

livestock-tagCattle are also subject to heat stress. This condition can affect milk production, weight gain and breeding cycles. The misted cow is the contented cow is the productive cow. Mother Nature has an unpleasant way of telling humans and horses to slow down when working in extreme heat, and if those warnings go ignored for too long, disaster can result. But races and heats and rounds and shows are held in all kinds of weather, and if we want our horses to do their best while competing in the heat, then we have to do our best to condition and acclimate them to withstand high temperatures.

DRY ENVIRONMENT
The system cools the inhabitants without creating a wet environment.

MINIMAL OPERATING COSTS
Easy installation, minimum maintenance and low energy consumption. There are many proven cost-effective uses for evaporative cooling that make it the preferred choice. The installation and operating cost of Misting Systems can be much lower than traditional air conditioning.

Comparison to phase-change (standard) air conditioning
Less expensive to install
Estimated cost for installation is 1/8 to 1/2 that of refrigerated air conditioning.
Less expensive to operate
Estimated cost of operation is 1/4 that of refrigerated air. Power consumption is limited to the fan and water pump vs. compressors, pumps, and blowers.
Fresh air
The constant stream of air from intake to vent through the building freshens the air in the building.

BENEFITS

  • Increases egg, milk, and meat production
  • Reduces animal heat stress
  • Reduces water and energy consumption
  • Extends breeding period and growth rate
  • Results in cleaner, drier surroundings
  • Dust suppression and Odour control

Greenhouse Cooling & Humidification with Misting

Misting systems are used with enormous advantages to keep the right climate inside greenhouses of any dimension.

greenhouse-cooling1Misting systems (or Fog systems) play an important role in the greenhouse climatic control. Misting systems are also used with enormous advantages to keep the right temperature and humidity in the environment, under conditions of forced or natural ventilation. In summertime the quick evaporation of the fog will cool the greenhouse due to the principle of evaporative cooling, meanwhile it humidifies the environment in case of low relative humidity. During the wintertime the system keeps the correct humidity rate preventing the dehydration of the crops caused by heating systems. The environment produced by our system is appropriate for the most delicate crops (ex. the growing of young seedlings, the cultivation of tropical plants and in bloom plants) where it is not possible to use traditional spraying methods like standard spraying.

Fog system works on a pressure of 1000 PSI (70 Bar) and it is designed to produce water droplets smaller than 5-10 microns diameter that, for theirs dwarfish size remains suspended in the air for a long time producing the fog effect.

greenhouse-cooling2Typically all growers have the problem of low humidity and high temperatures. Serious problems occur when the humidity in the greenhouse environment drops below 30% RH. Plants will suffer and typically slow or halt the growing process. In fact, many greenhouses in arid conditions close down for the summer months until ambient temperatures will reduce to an acceptable level.

LOW COST SYSTEMS
Very low cost of our systems are an important aspect of misting in greenhouse, if compared to other solutions for the climate control. The energy costs are low, simple and fast installations, considering that the systems are supplied in various solutions or D-I-Y Kits, or by the simple solutions of quick couplings. Our systems are designed to operate with very low costs and with a minimum maintenance.

BENEFITS

  • Increased general productivity of the greenhouse
  • Speeds up plants growth
  • Keeping of constant humidity levels
  • Lower water consumption for the irrigation
  • Growing of a reproduction plants stock in the greenhouse
  • Suitable for chemical spreading (fertilizers, insecticides)
  • Less humidity need
  • The correct micro-climate in any season
  • Less shading needed

AC Pre-Cooling with Misting

pre-cooling1Air conditioning systems perform at their worst in hot summer days, just when they are needed the most. The cooling capacity decreases by 14-15% and the power draw increases by 31%. The problem occurs in condensers which have to change vapours refrigerant into liquid forcing the air through the unit and absorbing heat from the refrigerant causing it to condense.

Applying water fogging system to air-cooled chillers can improve the efficiency under most of the working conditions, as the water mist could lower the air temperature entering the condenser.

On typical air-cooled chillers, a reduction in condenser air temperature of 6 °C will result 14% improvement in efficiency and 12°C about 25-30%.

pre-cooling2BENEFITS

  • Air temperature outside the unit lowered by up to 12 °C
  • Energy consumption decreased, as much as 30%
  • Increase the efficiency of HVAC units up to 30%
  • Live of the whole system extended
  • Low start up and operating costs
  • Quick installation
WINE CELLAR HUMIDIFICATION

As much as 5% of your wine production in barrels per annum could be lost to evaporation

but now U have Europe’s leading dry-fog humidification system available with a ROI which pays for itself in months!

Fixed misting line (left) and/or ceiling-mounted humidification fan right (on celling) – both with relative humidity control capabilities – which nozzles will not wet the air and/or barrels  and a humidification  pump that is water-wise requiring 70% less water than traditional misting pumps!

Choose a  dry-fog humidification system that has the following unique features:

  1. stabilizes humidity inside a cellar at between 80% and 85%
  2. eliminates wine barrel dehydration thereby reducing evaporation
  3. a system that functions automatically and autonomously  and is NOT reliant on external sources such as a wine cellar’s cooling system to distribute fog-mist into the cellar and/or a compressor to generate pressure in the humidification lines/nozzles
  4. Backed by a 30-year old Italian misting company

Contact Raymond on 082 600 5236 for more information and/or a quotation

 

 

 

raymond@polarafrica.co.za www.polarafrica.co.za

 

 

 

 

 

SUPERMARKET NIGHT BLINDS

Polar Africa is the southern Africa distributor of supermarket night blinds for one of the UK’s top brands, Thermasolutions, who have their night blinds installed in Tesco, Waitrose, Spar, Wall Mart, Marks & Spencers, Esso, Carrefour, Wholefoods, Coles, Sainsbury’s, Makro and Costco.

The night blinds are manufactured in the UK (has not been outsourced to another country) and is the only blind in the local market that has been stress-tested by an independent testing authority in the UK – a number of blinds were mechanically opened and closed, without interruption, 3 650 times – the equivalent of 10 years of continued usage with no damage to the blind material or roll up mechanism.

The blind material used has the capability of reducing energy consumption on upright display fridges by up to 20%, freezer counters and isle cases by up to 30%. Should all the cases in a large supermarket be installed with our night blinds, total monthly electricity bills could be reduced by between 12% and 15% per month – making a return on investment possible between 8 and 12 months post blind installation!

Thermasolutions is also the only UL94 certified blind manufacturer in the world!

Find below some local installations:

We guarantee the lowest installed price for slow rise aluminium-backed material night blinds in major metropolitan areas of South Africa

Use 20% to 30% less electricity per display case when U have our night blinds installed! Get 2 to 4 days longer shelf life on dairy products and fresh produce on display!


Definitive proof that our night blinds can reduce a store’s TOTAL monthly electricity bill by between 10% and15% a 5 month comparative electricity consumption evaluation at a leading supermarket in the Western Cape demonstrated that savings of up to15% PER MONTH are possible! Get your return on investment back in 8 to 12 months post night blind installation

 

Thinking of replacing your display cases one of these days? Our night blinds can be installed in your current cases and moved to the new cases with ease – simply order your new cases without night blinds and have us move our night blinds from one to the other!

The only slow rise night blind in the industry that has undergone an independent stress test that proves that our blinds have the potential to last 10 or more years!

 

International Certifications and Marks


Endurance Test

Our blind survived the equivalent of 10 years of continuous usage by an independent standards body in the UK – I am not aware of any other blind in this country (imported or locally manufactured) having the same accreditation but stand to be corrected if wrong.

 

Validating that the blinds meet the eco-design directive and product safety standards set by the EC.
Complies with the design, supply and installation of energy saving night blinds for refrigeration.
Authorized to bear the mark by way of official certification.
Complies with all of the requirements of the mark
Energy saving potential of night blinds has been verified

 

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