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Bao Hung Confectionery & DeAir: "Crispiness Preservation" Humidity Control Solution for Production Lines

02/02/2026

When a National Brand Chooses DeAir Humidity Solutions

In the food industry, especially confectionery, "Crispiness" and "Appearance" are two vital factors determining product quality. For a major brand like Bao Hung International Joint Stock Company (famous for Omeli biscuits, Choco Pie, soft candies...), maintaining these standards is even more rigorous as products serve not only the domestic market but are also exported to demanding international markets.

Recently, DeAir was honored to become the partner providing comprehensive humidity treatment solutions for the Bao Hung factory, deploying the installation of DeAir.RE-300 industrial dehumidifiers for the production line and DeAir.RE-1200 for the finished goods warehouse.

1. Confectionery Industry Challenge: The Battle with "Hygroscopic" Enemies

According to ASHRAE standards, the confectionery production process requires extremely strict humidity control. Sugar, flour, and milk powder are ingredients with very strong Hygroscopic properties.

  • At the production line: Biscuits after baking need to go through a cooling phase before packaging. If the ambient humidity is > 55%, the biscuits will immediately re-absorb moisture, losing their crispiness.
  • At the warehouse: If humidity is high, cardboard boxes holding biscuits will soften and lose structural integrity. More seriously, the "Sugar Bloom" phenomenon causes candies to stick to the wrapper, ruining aesthetics and customer experience.

2. DeAir Solution: Humidity "Zoning" Strategy

To solve the large-scale problem at the Bao Hung factory, DeAir did not apply a general formula but divided it into "tactical zones" with specialized equipment.

HUMIDITY CONTROL PROCESS AT BAO HUNG CONFECTIONERY FACTORY

ZONE 1: PRODUCTION & PACKAGING

(Cooling room, Wrapping room)


TARGET: < 50% RH

Solution: DeAir.RE-300
(Compact, placed directly at the line)

ZONE 2: STORAGE WAREHOUSE

(Raw material & Finished goods)


TARGET: < 60% RH

Solution: DeAir.RE-1200
(High capacity, large space handling)

Production Line Area: Using DeAir.RE-300

In biscuit cooling and packaging rooms, space is often limited by machinery. DeAir selected the DeAir.RE-300 industrial dehumidifier (Capacity 300L/day).

  • Advantages: Compact vertical cabinet design, low noise, easy to install interspersed in the line without affecting worker operations.
  • Efficiency: Creates convective dry airflow surrounding the conveyor belt, ensuring the biscuit surface is completely dry before being sealed by the packaging machine.

Large Warehouse Area: Using DeAir.RE-1200

For finished goods warehouses of thousands of square meters with high ceilings, small machines will not have enough load capacity. The optimal solution is the DeAir.RE-1200 high-capacity dehumidifier (Capacity 1200L/day).

  • Heat-pump Technology: Helps save 40-60% of electricity compared to old machines, significantly reducing operating costs for the enterprise.
  • High Airflow: Ensures dry air penetrates deep into cargo pallets, preventing mold growth on cardboard packaging.

3. Actual Installation & Operation Images

Below are actual images recording the process of the DeAir technical team deploying installation at the Bao Hung factory:

DeAir technician installing and connecting RE-300 dehumidifier to the confectionery production line
Meticulous installation helps the machine operate stably right in the continuous production environment.
DeAir.RE-300 dehumidifier operating at Bao Hung Omeli packaging line
DeAir.RE-300 ensures humidity in the packaging area is always below the allowed level, keeping biscuits crisp.
DeAir.RE-1200 high capacity dehumidifier system protecting confectionery finished goods warehouse
In large warehouses, DeAir.RE-1200 acts as a "shield" protecting goods from humid weather.

4. FAQ on Food Industry Humidity Control

Why do biscuits get soft even when sealed in packages?

The main reason is high humidity in the packaging room air. When the packaging machine seals the bag, it unintentionally "traps" a volume of humid air inside. This moisture will slowly permeate the biscuit, causing it to lose crispiness after a few days. Therefore, using a dehumidifier in the packaging room is mandatory.

What is the ideal temperature for a confectionery production room?

According to HACCP standards, confectionery production and packaging rooms should maintain a temperature of 20°C - 24°C and relative humidity (RH) of 40% - 50%. This helps prevent microorganism growth and maintains stable product structure.

Solutions for Food & Pharmaceutical Industries

Do you need an ISO/HACCP standard humidity solution like Bao Hung? Contact DeAir now!

DEAIR JOINT STOCK COMPANY

📞 Hotline: +84 933 628 660 (Ms. Hong)

📧 Email: deair@deair.com.vn

🌐 Website: deair.com.vn