Closed-Loop Extraction

The process of closed-loop extraction begins when raw cannabis flower is sprayed with a pressurized solvent (usually butane or propane) which separates the cannabinoid and resin-producing trichomes from the plant. Afterward, what’s left is a layer of sticky resin, which is then purged, dried, and processed into the desired form of concentrate, such as live resin, wax, or shatter.

Similar Terms

  1. Sealed-Loop Extraction
  2. Recirculating Extraction
  3. Looped Extraction
  4. Circulating Solvent Extraction
  5. Continuous Extraction