Tobacco Drying

Recently, our company welcomed Mr. Wang, a customer from Yunnan. Mr. Wang has long been engaged in tobacco processing and has been troubled by the low efficiency, unstable quality, and significant aroma loss associated with traditional sun-drying or high-temperature drying methods. His purpose in coming was very clear: to bring 500 grams of standard uncured tobacco to verify the actual effectiveness of our dryer on-site.

1.Trial Run and Parameter Settings

Based on the customer’s needs, our technical engineers developed a precise trial run plan.

Trial Equipment: Intelligent Rotary Low-Temperature Dehumidification Drying Chamber

Customer Material: Uncured tobacco (moisture content approximately 35%)

Drying Objective: To reduce the moisture content of the tobacco to approximately 12%, achieving a soft, dry state suitable for storage and processing, easily crumbled by hand.

Core Parameter Settings:

Temperature Setting: 45℃

Drying Time: 40 minutes

Air Speed ​​and Dehumidification: Utilizing medium-low speed circulating air, simultaneously activating the intelligent intermittent dehumidification mode to ensure a stable decrease in humidity within the drying chamber.

The scientific basis for choosing a low-temperature drying temperature of 45℃: Tobacco materials are very sensitive to high temperatures. Excessive temperature leads to the volatilization of aroma compounds, causing the tobacco leaves to become brittle and darken in color (browning), severely affecting quality. The 45℃ temperature range ensures efficient moisture evaporation while remaining far below the volatilization point of key aroma components in the tobacco, making it the “golden temperature” that balances efficiency and quality.

2.Trial Results and Customer Feedback

① Efficiency Performance: The entire drying process was strictly controlled within 40 minutes. Upon opening the drying chamber door with Mr. Wang, a rich, pure aroma of natural tobacco, rather than a burnt smell, was immediately noticeable. After a brief cooling process, Mr. Wang personally inspected the dried tobacco.

②Quality Verification:

Dryness: Mr. Wang casually picked up a handful of tobacco and gently twisted it; the tobacco easily crumbled, achieving the expected “crushable” effect. The drying was uniform, with no external dryness and internal dampness.

Color: The dried tobacco retained its original golden-yellow color, bright and clear, without obvious browning or darkening.

Aroma: This was Mr. Wang’s most satisfying aspect. After repeatedly smelling it, he said, “The aroma is very pure; it’s the natural aroma of tobacco, not destroyed by the high temperature. The equipment I used before always produced a musty or burnt smell, but this is excellent.”

Toughness: Due to the low-temperature drying, the tobacco fibers were not damaged, resulting in a soft, resilient feel that doesn’t easily crumble into powder, greatly improving the yield in subsequent processing.

After the trial run, Mr. Wang immediately stated, “Seeing is believing. I had some doubts before coming, but I didn’t expect such good results in just over 40 minutes at such a low temperature. This completely resolved my concern about the trade-off between efficiency and quality. This equipment is exactly what we need.” This successful trial run not only addressed the customer’s practical pain points but also fully demonstrated our company’s strong technical capabilities in the field of fine processing with our drying equipment. We believe that this equipment will bring significant quality improvements and economic benefits to Mr. Wang’s business.