Agricultural Cold Storage: Why Dezenno Rotor Dehumidifier is the "Savior" Against Condensation?

The Cold Storage Paradox: Low Temperature but High Humidity?

Many agricultural business owners invest billions in cold storage but still struggle with issues: Floors icing up and becoming slippery, water dripping from ceilings onto goods, and cardboard cartons becoming soggy, causing stacks to collapse. Why is humidity still an "invisible enemy" even when the temperature is low?

The answer lies in the physical limitations of standard dehumidifiers. This article will explain why DeAir's Dezenno Rotor Dehumidifier is the only technical solution to definitively solve this problem in environments below 10°C.

1. The "Invisible Enemy" in Agricultural Cold Storage

According to documents from FAO (Food and Agriculture Organization of the UN), humidity control in cold storage is as important as temperature control. When humidity exceeds the saturation threshold (Dew Point), serious problems arise:

• Safety Hazards: Moisture condenses and freezes on the floor, creating a slippery layer of ice, posing dangers to forklifts and operators.
• Packaging Damage: Cardboard cartons are highly hygroscopic. In humid environments, they become soggy and crumble, causing high stacks to collapse and resulting in significant losses.
• Mold Growth: Even at low temperatures, if humidity is > 85%, many types of mold can still develop on the surface of agricultural products, causing rot and reducing commercial value.

2. Why Standard Dehumidifiers Fail Below 10°C?

Most standard industrial dehumidifiers (Condensing/Refrigerant type) work on the principle of cooling a coil surface to condense water. However, this principle faces a "fatal flaw" in cold storage:

3. Dezenno Rotor Technology: The Low-Temperature Expert

To solve this problem, Adsorption technology using a honeycomb wheel (Desiccant Rotor) is the international standard solution recommended by ASHRAE.

• Independent of Dew Point: The Rotor wheel containing Silica Gel or Lithium Chloride desiccant will "capture" water molecules directly without needing to cool the air below freezing point.
• Absolute Efficiency Below 10°C: Dezenno machines operate stably and maintain high dehumidification capacity even in cool storage (0-5°C) or deep freeze storage (-18°C to -25°C).
• Deep Humidity Control: Capable of bringing humidity down to very low levels (< 30%), which condensing machines cannot achieve.

4. Video: Real Operating Principle

Watch the video below to understand how the Rotor Dehumidifier works and protects your cold storage:

5. DeAir: Manufacturer of Dezenno & AHU in Vietnam

Completely different from import trading companies, DeAir prides itself on mastering technology, being the Manufacturer that designs and produces the Dezenno Rotor Dehumidifier and Humidity Control AHU lines right at our factory in Vietnam.

• Customization: We design machine dimensions and duct positions to fit the tight spaces of each specific cold storage facility.
• Spare Parts Availability: Desiccant rotors, motors, and electric/steam heaters are always available for replacement within 24 hours, ensuring your cold chain operation is uninterrupted.
• Total Solution: DeAir provides a complete package: Dezenno Dehumidifiers combined with Dehumidifying AHU systems for comprehensive air treatment in large-scale factories.

6. Real-world Applications in Agriculture