dangshen drying test
来源： 作者： 发布日期：1970-01-01 访问次数：2
dangshen drying guide
dangshen intro paragraph here - scientific control of drying temperature and humidity
Section 1: Parameters
| stage | temp | humidity | time | notes |
|---|---|---|---|---|
| initial | 50-55 | 40-60% | 3-4h | high airflow |
| mid | 60-65 | 20-35% | 5-7h | stable temp |
| final | 45-50 | lt12% | 2-3h | slow cool |
| rest | cool | ambient | 1-2h | moisture lt13% |
Section 2: Equipment
| type | heat | capacity | energy | use case |
|---|---|---|---|---|
| hot air oven | electric/steam | 200-500kg | 90-130 | small |
| belt dryer | biomass | 800-1500kg/h | 55-80 | large |
| heat pump | electric | 300-800kg | 35-55 | premium |
Section 3: Quality
Appearance: yellow-brown surface, lion head shape, flexible texture.
Moisture: below 13%, yellow-white cross section.
Active: lobetyolin 0.02%+, extract 55%+, temp below 65.
Grade: top grade length 15cm+, diameter 1.0cm+, no pests, no mold.
Slow dehydration, stable form - the core of dangshen drying. Luohe Hengnuo Machinery.
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