Grinding
Use a grinder to grind the dry leaves into powder with a mesh size of around 40.
Extraction
The CBD paste was obtained through supercritical CO2 extraction.
Purification
The CBD paste was mixed with ethanol and then frozen at low temperature for 24 hours. The mixture was then filtered under vacuum to remove the waxy substances.
Remove ethanol using a rotary evaporator.
The CBD oil was purified using a molecular distillation device, resulting in a high-purity product.