Conquering the Japanese Market: DeAir Implements Isothermal Drying Technology for Air-Dried Persimmons in Da Lat

Conquering the Japanese Market: DeAir Implements Isothermal Drying Technology for Air-Dried Persimmons in Da Lat

Da Lat's air-dried persimmons (Hồng treo gió) are not just a famous delicacy but also a high-value agricultural export. However, conquering a notoriously demanding market like Japan requires meeting extremely strict standards for quality, consistency, and especially food safety. The traditional air-drying method, while producing delicious results, is entirely weather-dependent and carries risks of dust and insect contamination.

To solve this problem, a business in Da Lat approached DeAir with a clear goal: to establish a modern industrial production process capable of creating premium-quality air-dried persimmons that meet the standards for export to Japan.

The Challenge from Da Lat, the "Capital" of Air-Dried Persimmons

The secret to delicious air-dried persimmons lies in the slow drying process in Da Lat's cool air and moderate humidity. Therefore, the requirement for DeAir was not "hot drying," but rather creating a precisely controlled environment to simulate the most ideal natural conditions:

• Room Temperature: Must be consistently maintained at a stable 20°C. This cool temperature allows the persimmons to ferment and develop their sweetness naturally without being cooked.
• Air Humidity: Must be precisely controlled at 65%. If the humidity is higher, the persimmons are prone to mold; if lower, they will dry too quickly, resulting in a hard skin and a less tender, pliable flesh.

This challenge demanded an industrial humidity control equipment that was not only powerful but also extremely sophisticated.

The Breakthrough Solution: DeAir.CRE-600 Isothermal Dehumidifier

Recognizing that the core requirement of the project was to remove moisture without altering the room temperature, DeAir's experts consulted and installed a specialized solution: the DeAir.CRE-600 Isothermal Dehumidifier.

This is a special product line designed by DeAir for applications requiring precise simultaneous control of both temperature and humidity. Unlike a conventional dryer, an isothermal dehumidifier operates by removing moisture from the air without generating excess heat that would affect the ambient temperature.

The outstanding advantages of this solution include:

1. Precise Microclimate Control: The DeAir.CRE-600 system maintains a stable 20°C - 65%RH environment, creating a perfect "microclimate" ideal for the persimmons' sugar development process, resulting in a rich, sweet flavor and perfect texture.
2. Ensuring Premium Quality: The fully controlled drying process helps each persimmon develop its natural sugar bloom (the white powder on the surface), a chewy skin, and a soft, honey-like interior. The product quality is consistent across all batches.
3. Absolute Hygiene and Safety: The entire process takes place in a sealed room, eliminating 100% of environmental contaminants such as dust, bacteria, mold, and insects, thus meeting Japan's stringent food safety standards.
4. Productivity and Efficiency: The business can now operate continuously without being dependent on the weather, allowing for proactive production planning and a significant increase in output. The integrated Heat Pump technology also ensures the machine runs with low energy costs.

Results & Market Position Affirmation

With the successful installation of DeAir's isothermal air-dried persimmon drying system, the Da Lat enterprise can now confidently produce high-quality, consistent batches ready to conquer the Japanese market and other demanding international markets.

This project once again affirms DeAir's capability not only in supplying equipment but also in delivering specialized technical solutions, "tailor-made" for each client's unique requirements, contributing to the modernization of the agricultural processing industry and enhancing the value of Vietnamese specialties.