What Is Live Resin?
Live resin is a cannabis concentrate made from plant material that is frozen at harvest instead of dried and cured. The freeze stops terpene loss. Extractors then pull cannabinoids and terpenes out with a solvent, most often butane, propane, or a blend of the two. The final product is a sticky extract with a high terpene count.
Retail live resin tests at 60% to 90% total THC or CBD in most batches. Terpene content runs 5% to 15%. Extracts made from dried and cured flower hold 1% to 3% terpenes.
How Live Resin Is Made
Harvest and Freeze
Growers cut the plant and move it to a freezer within minutes. Temperatures sit between -20 degrees F and -40 degrees F. Material stays frozen through transport and storage. Water inside the plant cells turns to ice. Ice holds volatile terpenes in place.
Extraction
Frozen material goes into a closed-loop system. Cold liquid solvent washes over the plant and pulls cannabinoids, terpenes, and fats. The mixture drains into a collection vessel. The solvent is recovered and reused.
Purge and Finish
The crude extract moves to a vacuum oven. Heat and vacuum remove leftover solvent. Residual solvent has to fall under state limits. Some producers add a dewax step to strip fats and lipids. Final texture can be sauce, sugar, budder, or badder. Texture depends on temperature, time, and terpene content.
Live Resin vs. Live Rosin vs. Cured Resin
- Live resin: fresh-frozen plant, hydrocarbon solvent.
- Live rosin: fresh-frozen plant, ice water hash, then heat and pressure. No solvent.
- Cured resin: dried and cured plant, hydrocarbon solvent. Lower terpene count.
CBD and Hemp Live Resin
Hemp live resin comes from Cannabis sativa plants that test at or under 0.3% delta-9 THC on a dry weight basis. That limit comes from the 2018 Farm Bill. Many hemp live resin batches carry CBD, CBG, or THCA as the main cannabinoid. THCA is not psychoactive until heat converts it to THC. A label listing 70% THCA and 0.2% delta-9 THC is legal at the federal level. State law still controls retail sale, and some states ban THCA products. Check state rules before you order.
Numbers to Read on a Lab Report
- Potency: total THC, total CBD, THCA, CBDA, CBG.
- Terpenes: total percent plus the top five compounds, such as myrcene, limonene, and pinene.
- Residual solvents: butane, propane, pentane, hexane. Each has an action limit.
- Pesticides, heavy metals, mold, and yeast.
- Batch date. Terpenes fade with time.
How Live Resin Is Used
Live resin goes into a dab rig, a wax pen, or a vaporizer built for concentrates. Coil temperatures run 400 degrees F to 600 degrees F. Higher heat gives more vapor and less flavor. Some brands mix live resin into cartridges, tinctures, or topicals. A standard flower vaporizer will not handle it. The extract melts and clogs the chamber.
Storage
Keep live resin in a glass jar with a tight lid. Store it away from light, heat, and air. A cool, dark drawer at 60 degrees F to 70 degrees F works. Refrigeration slows terpene loss but adds condensation each time the jar warms. Open the jar only when needed. A one-gram jar holds its profile for a few months. After that, terpenes drop and the extract darkens.