Project: Weather-Independent Rice Paper Drying with the Daxwell DX-300D Dryer

Rescuing the Rice Paper Industry from the "Pain" of Weather Dependency

Rice paper (bánh tráng) is a traditional specialty that provides the primary source of income for thousands of businesses across Vietnam. However, the traditional sun-drying method places these facilities in a completely passive position. Just a sudden downpour or a few days of high humidity can cause thousands of drying racks to turn sour, grow mold, and be discarded, resulting in tens of millions of VND in damages.

Furthermore, outdoor drying exposes the rice paper to fine dust and attracts insects, stripping businesses of the opportunity to achieve Food Safety and Hygiene certifications required to enter supermarkets or export markets. To break this barrier, transitioning to an industrial closed-loop drying room model with the Daxwell DX-300D Heat-Pump Dryer is the strategic direction chosen by many forward-thinking facility owners.

1. Smart "Cleanroom" Standard Drying Room Design

Unlike merely "selling a machine," DeAir's engineering team directly consults, designs, and constructs a synchronized rice paper drying room system, optimizing airflow to ensure every batch achieves 100% uniform quality.

DeAir technicians directly connecting the drying system into the Panel room.

Powerful 360-degree circulating fan system inside the drying room.

Inside the Drying Room: The Airflow Challenge

From being soaking wet to the moment the surface sets, rice paper is extremely sensitive to wind force. If air blows directly and harshly, the edges of the rice paper will warp and crack. DeAir's technicians calculated and arranged a smart reversible fan system combined with dry airflow from the machine, ensuring 360-degree circulation through every gap in the trolleys. As a result, the rice paper dries evenly from the top tray to the bottom tray, remaining perfectly flat.

Outside the Drying Room: Isolation and Automation

To meet food cleanroom standards, the main body of the Daxwell DX-300D is placed completely outside the drying area. The machine communicates with the drying room via supply and return air ducts penetrating the Panel walls. This maximizes the space inside for trolleys and completely isolates the food area from machinery dust and maintenance activities.

2. [The Highlight] Every Region Has Its Specialty - The Drying Process Must Differ!

Drying rice paper with an industrial dryer is not a "cookie-cutter" task where you just turn up the heat. Every regional specialty requires a completely different PLC "Recipe":

• Thin Spring Roll Rice Paper (Cu Chi, Tay Ninh): Requires retaining a chewy and pliable texture so it doesn't break when rolled. The Daxwell machine is set to a very low temperature range (40°C - 45°C) to extract moisture slowly and retain a specific moisture percentage.
• Coconut/Milk Rice Paper (Ben Tre, Binh Dinh): The paper is very thick and contains a lot of sugar and fat. If forced with high heat, the sugars caramelize (burn black) and the fats turn rancid. It requires an alternating incubation drying mode combined with high wind speed to continuously extract water.
• Sesame/Grilled Rice Paper (North, Central Vietnam): Requires deep, bone-dry moisture extraction for long-term storage. When grilled, the surface must puff up and remain crispy and spongy.

3. Infographic: Why Ditch Electrical Ovens for the Daxwell DX-300D?

4. Outstanding Return on Investment (ROI) for Owners

Putting the Daxwell DX-300D into operation has completely changed the business landscape for this rice paper facility:

• Non-stop 24/7 Production: Take full control of export delivery schedules regardless of storms or nighttime. Increase output by 3-5 times compared to sun-drying.
• Save on Labor Costs: Eliminate the grueling labor of laying out rice paper, flipping it, and scrambling to bring it inside when it rains.
• Open Doors to Export: The sterile, closed-loop drying process helps the product easily pass microbiological tests and achieve HACCP and ISO 22000 certifications, giving you the confidence to sign contracts with major supermarket chains and international partners.

Conclusion: Investing in the Daxwell heat-pump drying system is not just buying a machine; it is a strategic transformation for rice paper manufacturing facilities to elevate their brand, break free from weather dependency, and master their business destiny.