Cold Storage Humidification Systems
MeeFog Systems Optimize Storage with Precise Humidification Control
By maintaining consistent humidity levels, you also slow down the natural aging process of your produce. This keeps fruits and vegetables fresher for longer and reduces the risk of shrinkage or spoilage, letting you get the most value from each shipment.
MeeFog designs cold store humidification systems that generate high volumes of ultra-fine droplets that evaporate quickly, reducing deterioration caused by water loss. The result is better keeping quality, minimized weight and value loss, and produce that looks as good as it tastes.
Benefits:
- Improved keeping quality.
- Minimize loss of weight and value.
- Enhanced visual features.
- Ultra-fine fog droplets – no wetting.
MeeFog In-Space Installation Diagram
Click the different areas of the diagram below to learn more information about our system.
Water Pre-Treatment

Water Pre-Treatment
Basic water treatment, namely, a water softener is required for mineral removal. Based on dust-free requirements for the space additional components including reverse osmosis with automated membrane flushing and pre-treatment filtration can be added.
MeeFog Pump

MeeFog Pump
The high-pressure pump maintains 1000 psi water pressure in order to atomize the water into tiny droplets that can evaporate overhead. The pump rack has a VFD with panel-mounted controller that maintains pressure when zone valves open and close.
Zone Valve Panel

Zone Valve Panel
The MeeFog Zone Valve Panel provides control for up to five fogging zones. It can use an on-board humidity sensor or signal from other controllers to actuate ball valves that are slow acting to eliminate water hammer.
Swirl Jet Nozzles

Swirl Jet Nozzles
The MeeFog Swirl Jet nozzles are stainless steel with a .006” orifice and output 7 lbs. per hour of fog. Fog nozzles mounted on stainless steel tubing can be spaced one per 200 square feet or denser for areas with open bay doors or in need of higher humidity.
System Overview
Nozzle Comparison
At an operating pressure of 2000 psi, the resulting average droplet size is roughly one-tenth the diameter of a single strand of human hair. These ultra-fine droplets spread evenly throughout the space, helping maintain consistent humidity levels across the storage area.
MeeFog System Benefits
- Compressor not required.
- Quiet operation.
- Reduces topping.
- Uniform humidity distribution.
- Precise control.
- Ultra-fine fog droplets – no wetting.
- Flexible and easy to retrofit.
Droplet Comparison
Our cold store humidification systems create small fog droplets that have a larger surface-to-volume ratio compared to larger ones. This allows them to evaporate much more rapidly, quickly adjusting the air humidity without wetting the produce or barrels. Faster evaporation also reduces
Want Proof?
We’ll gladly supply a detailed payback analysis report for your existing Wine Barrel Storage, including:
- The cost of the installed MeeFog system.
- Payback analysis.
MeeFog Nozzle
Cold Storage Humidification Systems FAQs
A cold storage humidification system manages moisture in refrigerated rooms to maintain ideal humidity levels. This helps keep fruits, vegetables, and other produce fresher for longer.
High-pressure fog systems create ultra-fine droplets that quickly evaporate, raising humidity and cooling the air. This prevents shrinkage, reduces water loss, and keeps produce in top condition.
Yes, proper cold store humidification slows moisture loss from produce. Maintaining consistent humidity preserves weight, appearance, and overall quality during storage.
No, MeeFog systems operate at high pressure without the need for compressed air. This makes them quieter, more energy-efficient, and easier to maintain.
Droplets from high-pressure fog systems are smaller than a single strand of human hair. Their ultra-fine size allows rapid evaporation without wetting the produce.
Our cold store humidification systems are designed to retrofit easily. Pipes and nozzles can be added to existing ceilings and racks with minimal disruption.
You get uniform humidity, reduced product loss, and consistent quality. MeeFog systems deliver precise, ultra-fine fog for effective cooling and humidification.


