The Process
Every step preserves the plant’s highest expression.
From living soil cultivation to fresh freezing and solventless extraction, our process is designed to protect aroma, resin, and trichome integrity at every stage.
Our process
From genetics to finished resin.
Every step is built around the same question: preserve the plant at its highest expression while protecting aroma, resin, and character.
Promethean is proudly rooted in the mountains of Humboldt County, California. This is where living soil, mountain air, cool coastal evenings, abundant sunshine, and generations of cultivation knowledge come together to produce extraordinary cannabis.
Every harvest reflects the place it comes from. Every cultivar tells the story of its terroir.
From harvest to hash
Experience the care and precision that preserve resin quality from field to extraction.
Refinement in motion
See solventless work in action, with a focus on handling, pressing, and preservation.
Genetic Selection
Every cultivar is selected for exceptional terpene expression, resin production, and wash potential.
Living Soil Cultivation
Our plants are grown in biologically active living soil, allowing healthy microbial life to unlock each cultivar’s full genetic potential.
Peak Harvest
Every harvest is timed according to resin maturity—not the calendar.
Immediate Fresh Frozen Preservation
Material intended for solventless extraction is frozen immediately after harvest to preserve delicate terpenes and fragile trichome heads.
Ice Water Extraction
Using only purified water, ice, and precision filtration, we gently separate resin glands without chemical solvents.
Controlled Drying
Collected resin is dried under carefully managed environmental conditions to protect aroma, flavor, and structure.
Low Temperature Rosin Pressing
Selected resin is pressed using carefully controlled heat and pressure to produce exceptionally pure solventless rosin.
Curing & Evaluation
Every batch is evaluated for aroma, flavor, texture, cleanliness, and overall expression before earning the Promethean name.
Built for transparency
Turn this framework into your verified production story.
Growth will never come at the expense of quality. Our standards travel with us.