MeiYa Heat Pump Dryer: The Professional Drying Solution for White Peony Root (Bai Shao)

Introduction: The Critical Importance of Proper White Peony Root Drying

White Peony Root (Paeonia lactiflora), known as Bai Shao in Traditional Chinese Medicine, is a fundamental herb valued for its properties in nourishing blood, regulating menstruation, and soothing the liver. The quality, potency, and market value of the final dried product are profoundly influenced by the drying process. Fresh roots have high moisture content and are prone to spoilage, mold, and enzymatic degradation. Inconsistent or improper drying can lead to discoloration (turning black), hollow centers, peeling, loss of the key active component Paeoniflorin, and ultimately, a substandard product. MeiYa’s advanced heat pump drying technology provides a precise, efficient, and standardized solution that preserves the herb’s medicinal integrity, appearance, and efficacy.

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Why Choose MeiYa Heat Pump Dryers for White Peony Root?

Traditional drying methods for Bai Shao are fraught with challenges that compromise quality, efficiency, and safety:

• Sun-Drying with Sulfur Fumigation: Commonly used by small-scale farmers, this method is weather-dependent, slow, and introduces sulfur residues, which contaminate the herb and fail to meet modern safety standards .
• Coal/Wood-Fired Drying: This method produces uneven heat, releases harmful pollutants (SO₂, CO₂), poses fire risks, and often results in externally charred but internally under-dried roots .
• Electric Heating Dryers: While cleaner, they are extremely energy-intensive, leading to prohibitively high operational costs for batch production .

MeiYa Heat Pump Dryers overcome these limitations with decisive advantages:

1. Superior Energy Efficiency & Cost Savings: By extracting thermal energy from ambient air, MeiYa dryers can reduce energy consumption by 60-70% compared to conventional electric or fuel-based dryers, dramatically lowering long-term operating costs .
2. Precise Intelligent Temperature & Humidity Control: The microprocessor-based system allows for exact programming of multi-stage drying curves. This prevents surface gelatinization or hardening, ensures uniform moisture removal from the inside out, and critically preserves the content of Paeoniflorin and other sensitive compounds .
3. Fully Automated, Labor-Saving Operation: Once the preset program is initiated, the dryer operates autonomously. It eliminates the need for constant manual turning, monitoring of fires, or weather-watching, significantly reducing labor intensity and human error .
4. Exceptional Product Quality & Consistency: The gentle, low-temperature drying (typically 40-70°C) and controlled dehumidification prevent cracking, hollowing, and discoloration. The result is a batch of roots with uniform white or pale yellow color, intact texture, and maximized medicinal value .
5. Hygienic & Eco-Friendly Process: The closed-loop system ensures a clean processing environment free from dust, insects, and sulfur or smoke contamination. It produces zero direct emissions, aligning with green production standards .
6. Weather-Independent & Scalable Production: MeiYa dryers enable consistent, year-round processing regardless of external weather conditions, supporting reliable and scalable production schedules.

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Step-by-Step White Peony Root Drying Process with MeiYa Dryers

Stage 1: Pre-Drying Preparation (Boiling & Peeling)

1. Harvesting & Cleaning: Harvest roots in summer or autumn. Wash thoroughly to remove soil and impurities.
2. Boiling (Scalding): Sort roots by size. Boil in water at 80-90°C for 8-15 minutes (smaller roots require less time). The root is ready when the skin turns white, the core is cooked through, and a distinct aroma is released.
3. Cooling & Peeling: Immediately transfer the boiled roots to cold water. Once cooled, peel off the outer bark manually (using bamboo or glass tools to avoid discoloration) or mechanically.

Stage 2: First Drying (Whole Roots to Semi-Dry State)

The goal is to dry the peeled whole roots to about 60-70% dryness.

• Loading: Arrange the roots evenly on trays with good airflow, ensuring they do not overlap.
• Drying Cycle (Example):
  • Phase 1 (Rapid Dehydration): Quickly raise the temperature to 70°C while continuously activating the dehumidification system to remove surface moisture. This phase lasts for the initial few hours .
  • Phase 2 (Constant Temperature Drying): Lower the temperature to 50-60°C. Maintain this range to dry the surface thoroughly without case-hardening. Humidity should be controlled below 40% RH .
  • Phase 3 (Final Drying): Gradually increase the temperature to 65°C and continue drying until the roots reach the desired semi-dry state (pliable but not brittle) .
• Total Time: Approximately 15-20 hours for this first drying stage .

Stage 3: Processing & Second Drying (Slicing to Final Dry)

1. Slicing: After the first drying, the roots are softer and easier to slice uniformly.
2. Second Drying (Slices): Spread the slices evenly on trays.
   • Drying Parameters: Use a temperature range of 50-65°C. Since most moisture has been removed, this stage is primarily about achieving the final, stable moisture content .
   • Time: Approximately 10-12 hours .
3. Target Moisture Content: The final product should have a moisture content below 12% for safe storage.

Note: The exact temperature and time settings may vary slightly based on root size, initial moisture, and batch load. The MeiYa intelligent control system allows for easy customization of these parameters.

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Conclusion

The MeiYa Heat Pump Dryer transforms White Peony Root processing from an unpredictable, labor-intensive, and often contaminating practice into a modern, precise science. By delivering unmatched energy efficiency, precise climate control, and full automation, MeiYa ensures the production of premium-grade Bai Shao that is consistently potent, visually superior, and compliant with the highest quality and safety standards. Investing in MeiYa technology is an investment in product excellence, operational efficiency, and sustainable growth.

Achieve consistent, high-quality White Peony Root with MeiYa’s intelligent drying technology.

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Contact Us for Your Customized Drying Solution: 📧 Email: [email protected] 👤 Contact: Ray Ren 📱 WhatsApp/WeChat/Mobile: +86 133 4676 7871

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MeiYa – Engineering Smarter Drying for a Healthier World.

MeiYa Heat Pump Dryer Machine

1. No MOQ & Customization Unlimited
2. Drying + Dehumidify + Cooling
3. PLC + Touch Screen Control
4. 7-10 Days Delivery Time

Parameter:

Single dryer+drying chamber
Model	Unit	MY-03RD	MY-06RD	MY-12RD
Power input	KW	5.5	9.5	19.4
power supply	V/PH/HZ	380V/3PH,50/60HZ	380V/3PH,50/60HZ
		220V/1PH,50/60HZ
Rated current	A	9.6A(380V),22A(220V)	17.0	30.0
Heating capacity	KW	10.5	21.0	42.0
Cooling capacity	KW	7.8	18.0	32.0
Dehumidity	L/H	12.0	25.0	50.0
Max temperature	℃	≤75	≤75	≤75
Working condition	℃	0-43	0-43	0-43
Electric shock protection grade		1	1	1
Max exhause pressure	M(P)a	30	30	30
Noise	d(B(A	75	75	75
Power consumption/H	KWH	4.8	8.5	15.0
Electric heater	KW	3.0	6.0	12.0
Blowing type	/	HORIZONTAL BLOWING TYPE
Demsnssion of dryer	MM	1650*856*1280	1806*1065*1280	2089*1260*1580
Weight	KG	180	285	480

Buying Guiding:

Recommend drying machine+Drying chamber sizes

Model	Description	Drying Capacity (Per Batch)	Drying Room Size (mm)	Trolleys Number	Trays Number
MY-01RD-16L	All-in-one Machine	Up to 100Kg	All-in-one		16
MY-01RD-36L	All-in-one Machine	Up to 250Kg	All-in-one		36
MY-03RD-60L	All-in-one Machine	Up to 400Kg	All-in-one		60
MY-03RD	1 Unit + 1 Drying Room	Up to 700Kg	3200*2190*2200	8	128
MY-06RD	1 Unit + 1 Drying Room	Up to 1,300Kg	6150*2190*2200	14	224
MY-12RD	1 Unit + 1 Drying Room	Up to 2,000Kg	6350*3230*2200	20	320
MY-15RD	1 Unit + 1 Drying Room	Up to 2,200Kg	6350*3230*2200	20	320
MY-03RD (Double)	2 Units + 1 Drying Room	Up to 1,700Kg	7050*2190*2200	16	256
MY-06RD (Double)	2 Units + 1 Drying Room	Up to 2,500Kg	10100*2190*2200	24	384
MY-12RD (Double)	2 Units + 1 Drying Room	Up to 4,400Kg	11860*3230*2200	40	640
MY-15RD (Double)	2 Units + 1 Drying Room	Up to 5,200Kg	11860*3230*2200	40	640
MY-25RD (Double)	2 Units + 1 Drying Room	Up to 10,000Kg	13520*6070*2200	48	1920

Our Projects:

Our Factory:

Production Processing:

Drying Machine Components:

Standard Working Modes:

• Typically ​3 modes available:
  • ​Drying Only
    • Rapid temperature rise; ​unable to discharge moist air
  • ​Drying + Dehumidify
    • Chamber temperature rises ​while discharging moist air
  • ​Cooling
    • Temperature can ​drop to 10°C (minimum)
  • Important Note:
    • If temperature control becomes unstable, ​switch to Temperature & Humidity Mode.

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Ray. Ren | Sales Manager
GUANGZHOU MEIYA ELECTRIC EQUIPMENT TECHNOLOGY CO., LTD.
📍 Add: No.217, 2nd Ruiyun Road, Xiuquan Street, Huadu District, Guangzhou, Guangdong, China
📞 Tel/WhatsApp/WeChat: +86 133 4676 7871
✉️ Email: [email protected]
🌐 Website: https://www.my-dryer.com