[Case Study] DeAir.CRE-600 Custom "Mango Yellow" - The Post-Drying Dehumidification Solution in An Giang

Introduction: The "Moisture Regain" Problem - A Pain Point for the Dried Goods Industry

For high-value dried delicacies like soft-dried mango, the "cooling" phase after emerging from the dryer is critical to the final product's quality. A freshly dried product, which is hot and in a very dry state, will immediately act like a "sponge" when exposed to the ambient air (which is naturally humid in An Giang), reabsorbing moisture from its surroundings.

This "moisture regain" phenomenon is the biggest challenge in the drying industry, causing products to become damp, sticky, and increasing the risk of mold, thereby shortening shelf life and severely degrading the sensory value and quality. To solve this "critical" step, a business in An Giang turned to DeAir for a specialized solution. The result was the creation of a dehumidifier that was not only effective but also bore a unique "mango yellow" signature.

1. Technical Analysis: Why Dehumidify During the Cooling Phase?

According to many studies on the production of soft-dried mango, the product has a very low water content post-drying, creating a huge vapor pressure differential with the environment. When exposed to humid air, "moisture regain" occurs instantly. This is a natural physical phenomenon but one that negatively impacts the nutritional and sensory quality of food.

Therefore, creating a "buffer room" with strictly controlled humidity to cool the product before packaging is a mandatory requirement in a professional production process.

2. The DeAir Solution: The DeAir.CRE-600 Isothermal Dehumidification Buffer Zone

The problem was: How to both dehumidify (to a low level) and cool the product (without raising the room temperature)?

• Mistake Analysis: Using a standard industrial dehumidifier (condensing type) would constantly release heat. This heat directly conflicts with the cooling process, causing the buffer room to heat up and slowing down the packaging process.
• The Optimal Solution: The DeAir.CRE Isothermal Dehumidifier is the perfect solution. With a design that separates the heat-dissipating component (condenser) to be placed outside the warehouse, the machine can powerfully remove moisture without changing the room's temperature (isothermal).

The DeAir.CRE-600 model, with its powerful capacity, created an absolutely dry environment (actual measured humidity of only 26%RH) while maintaining a cool temperature (29°C). This allowed the dried mango to cool down quickly without reabsorbing moisture, retaining its perfect texture and color for packaging.

3. "Mango Yellow" - The "Made in Vietnam" Customization Signature

The most special part of this project wasn't just its technical success, but its aesthetics. The customer wanted a machine that was visually consistent with their brand and product, requesting the machine's cover be painted in the distinctive yellow of a ripe mango.

With the advantage of being a local manufacturer in Vietnam, DeAir perfectly met this request, delivering a DeAir.CRE-600 with a unique custom color, completely different from the standard blue. This demonstrates DeAir's flexible "tailor-made" capability—ready to customize everything from color to technical specifications to precisely fit each project, an advantage that fully imported units can hardly match.

4. On-Site Handover Images from An Giang

5. Frequently Asked Questions (FAQ)