Jacob See

A closed loop extractor is a sealed hydrocarbon extraction system in which the solvent (usually butane, propane or a blend) is kept inside the equipment and recovered for reuse instead of being vented. It typically includes a solvent tank, material columns, a collection vessel and a recovery path. It must be engineered, certified and operated only in licensed facilities.

BHO (butane hash oil) describes the solvent used. Live resin describes the input: fresh frozen plant material instead of dried and cured material. Live resin is often made with closed loop BHO, which is why the terms overlap.

Common causes are low-quality or wet input material, moisture in the system, too little THCa in the starting extract, or disturbing the material while crystals are nucleating. Every lab is different, so a review of inputs, documentation and the environment is the usual starting point.

Water can interfere with how THCa molecules arrange into crystals, leading to cloudy, small or poorly separated diamonds. Moisture can enter through input material, the environment or the equipment, so licensed labs control it at every stage.

Closed loop hydrocarbon extraction belongs only in licensed, code-compliant facilities: an engineered C1D1 room, certified equipment, gas detection, ventilation, trained staff, SOPs and regular leak checks. It is never a home or DIY activity.

Match capacity to your production goals, insist on third-party engineering documentation and certification, plan for solvent recovery speed and cooling (chillers or dry ice), and confirm the system fits your licensed space and local code. A consultant can help compare options.

Yes. I am based in New York and travel to and live on site at licensed facilities for setup, system repair, rebuilds and process improvement.

A walkthrough run like a real inspection: SOPs, batch records, training records, sanitation, deviations and CAPA, with a written gap report and priorities for fixing them.