DeAir Delivers Dezenno Rotor Dehumidifier to TH true milk Dairy Plant in Nghe An: Ultra-Low Humidity Control Solution for the Dairy Industry

💡 Executive Summary

1. Context: The Dairy Industry & Humidity Challenges in Nghe An

1.1. The Dairy Industry – The Most Stringent Humidity Requirements

Milk powder and dairy derivatives are highly hygroscopic products. If ambient humidity exceeds the permissible threshold, milk powder will immediately absorb moisture, leading to:

• Clumping, loss of free-flowing texture, and degradation of nutritional quality.
• Increased risk of bacterial contamination and mold development.
• Failure to meet the acceptance standards of export partners.

According to the technical document "Recommended Temperature and Humidity Conditions by Environment" (DeAir's reference source), the mandatory thresholds for the dairy industry are:

These are ultra-low thresholds. Conventional condensation dehumidifiers can typically only reach a maximum of ~40% RH under ideal conditions.

1.2. The Climate Challenge in Nghe An (July 2026)

Nghe An, located in Vietnam's North Central Coast, experiences a hot, humid climate with a prolonged rainy season (May to October). July 2026 – the project handover period – falls right in the peak of the rainy season, where outdoor ambient humidity consistently remains at 85-95% RH. Without a proactive humidity control solution, milk powder will rapidly reabsorb moisture immediately after packaging, causing severe economic losses.

2. Why Conventional Condensation Dehumidifiers CANNOT Meet the Demand?

Many facilities mistakenly attempt to use condensation (refrigerant) dehumidifiers to achieve humidity levels below 40% RH. Technical reality dictates otherwise:

• Loss of dehumidification capacity: When ambient humidity drops too low, there is insufficient water vapor in the air to condense on the cooling coil.
• Coil freezing: The unit will automatically enter continuous defrost cycles, halting the actual dehumidification process.
• Wasted energy: The compressor and fans continue to run, consuming electricity without achieving the target humidity.

Expert Conclusion: For the 15-30% RH requirement of the dairy industry, an entirely different technology is required – and that is the Dezenno Rotor.

3. Dezenno Rotor Solution – The "Heavy Weapon" for Ultra-Low Humidity

3.1. Superior Operating Principle

Instead of cooling air to condense moisture, Dezenno utilizes a silica gel rotor – a highly potent desiccant material. Humid air passes through the rotor, and water vapor is adsorbed onto the silica gel surface. The rotor rotates continuously, passing through a heated regeneration zone to release the trapped moisture outside. The result: discharge air with ultra-low humidity, capable of achieving a dew point down to -40°C.

3.2. Overwhelming Advantages for Dairy Plants

• Achieves ultra-low humidity: Precisely controls the 15-30% RH range, perfectly meeting milk powder and whey requirements.
• Stable operation in all conditions: Performance remains unaffected even when outdoor ambient humidity exceeds 90% RH (Nghe An's rainy season).
• Precise control: PLC systems allow setting and maintaining target humidity with a tolerance of ±2% RH.
• High durability: European-quality silica gel rotors are robust and require minimal maintenance.

👉 Explore the Dezenno Rotor Dehumidification Equipment in detail

4. Dezenno Rotor Platform Technical Specifications

The project for the TH true milk dairy plant utilizes a custom configuration based on the high-capacity Dezenno platform, ensuring sufficient airflow and moisture handling for large warehouse spaces.

5. Production & Handover Process in Nghe An (July 2026)

The entire process strictly follows the ISO 9001:2015 quality management system applied by DeAir, ensuring consistency, transparency, and equipment safety.

5.1. Production & Packaging Phase at DeAir Factory

After completing assembly and a 24-48 hour test run at the DeAir factory (Ho Chi Minh City), the equipment is carefully padded and wrapped in shock-absorbent and moisture-resistant materials, ensuring absolute safety for the long journey north.

5.2. Installation & Technology Transfer Phase

DeAir's engineering team was present at the TH true milk plant (Nghe An) to supervise the unloading, installation of the ductwork system, 380V/3-phase electrical connections, and parameter configuration on the PLC control cabinet. Subsequently, the system was test-run and fine-tuned to ensure warehouse humidity remained stable at 15-30% RH, regardless of the heavy rain and high humidity outside.

6. Achieved Results

👉 Explore dedicated dehumidification solutions for the food industry

7. Infographic: Comparing Humidity Control Solutions for the Dairy Industry

8. Frequently Asked Questions (FAQ)