Medicinal herbs are judged by their active compounds. Overheating volatilizes essential oils and degrades actives; sun drying invites mold, dust and unpredictable results. The AOBOTE herb drying solution uses low-temperature (40–55 °C) heat pump dehumidification with precise humidity control — the standard approach for GMP-minded processors of roots, flowers, leaves and slices.
Typical Materials
Gastrodia (tianma), ginseng and american ginseng, angelica, goji, chrysanthemum, honeysuckle, mint, perilla, and sliced or whole medicinal roots — plus tea-herb blends.
Why Heat Pump Drying for Herbs
- Active compound protection — gentle temperatures keep essential oils and actives in the material, not in the air.
- Even, repeatable results — automatic humidity control prevents case hardening and re-wetting.
- Hygienic chamber — closed-loop clean air, no fuel gases, no dust blow-in.
- Documentable curves — PLC-controlled profiles make each batch reproducible for quality audits.
Recommended Machines
7HP–25HP closed-loop cabinet dryers for most herb batches; larger volumes move to the Continuous Belt Dryer. Heat source can be heat-pump only or heat pump + supplementary heating for dense roots.
Explore related materials: Tea Leaves & Flowers · American Ginseng · Mushroom Drying
Can it dry dense roots like gastrodia without cracking?
Yes — staged low-temperature drying with controlled humidity draws moisture out gradually, which is exactly how surface cracking and case hardening are avoided.
We need different profiles for different herbs.
The PLC stores multiple recipes; switch profiles per material without touching the hardware.