
Cold Sieving: Traditional Extraction, Pharmaceutical Standards
April 6, 2025In the pharmaceutical cannabis sector, where stability, traceability, and therapeutic value are non-negotiable, genetic origin matters. At Demetra Green Labs, we have chosen to work exclusively with Beldia, a native Moroccan cannabis landrace cultivated for generations in the Rif region. This decision is more than just agricultural — it’s a scientific and strategic commitment to purity, consistency, and heritage-based excellence.
What is Beldia?
Beldia is a true landrace: a naturally adapted cannabis variety that has evolved over centuries in a specific geographic region, isolated from the aggressive hybridization seen in modern breeding. It is one of the oldest known strains in North Africa, originally cultivated by smallholder farmers in the Rif Mountains under harsh, dry, and mineral-rich conditions.
Because of its long-term environmental isolation and traditional selection methods, Beldia presents a remarkably stable chemotype, with naturally low levels of THC and a moderate but consistent presence of other cannabinoids such as CBD, CBG, and minor acidic forms. Its terpene profile is subtle yet rich — often dominated by caryophyllene, myrcene, and limonene — contributing to a full-spectrum effect ideal for therapeutic formulations.
Why Beldia Makes Sense for Medical Use
Unlike many commercial hybrids that have been optimized for yield or psychoactive potency, Beldia’s natural profile offers balance, reproducibility, and pharmacological potential. Its low-THC raw content makes it particularly well-suited for full-spectrum resin extractions intended for non-recreational use.
Key advantages include:
- Chemical consistency: across growing cycles and regions, Beldia maintains a predictable cannabinoid and terpene ratio.
- Stability during processing: its structure holds well under cold extraction techniques, without collapsing terpenes or oxidizing key actives.
- Suitability for full-spectrum: ideal for formulations where the entourage effect is required but without high psychoactivity.
- Legal compatibility: its naturally low-THC profile simplifies compliance in many regulatory markets.
These factors make Beldia a powerful raw material for manufacturers working in the fields of neurological disorders, chronic pain, inflammation, and anxiety-related conditions.
Demetra Green Labs: Controlled Cultivation, Ethical Sourcing
At Demetra Green Labs, we oversee a vertically integrated supply chain built on traditional farming knowledge and pharmaceutical rigor.
All Beldia crops used in our production are:
- Cultivated using non-GMO seeds, under chemical-free protocols
- Grown at altitude, where sunlight exposure and soil quality enhance cannabinoid expression
- Dried in controlled, shaded environments to preserve terpene integrity
- Harvested manually and sorted for resin quality and morphological uniformity
No synthetic fertilizers, pesticides, or external agents are used. Our local partnerships ensure that farming families continue to benefit directly from this heritage economy, while also receiving training on post-harvest hygiene and quality assurance practices in line with pharma-grade extraction requirements.
From Heritage to High Standards
All harvested material undergoes a strict post-harvest analysis before entering the extraction process. This includes:
- Microbial testing
- Pesticide and heavy metal screening
- Moisture and water activity controls
- Cannabinoid and terpene fingerprinting
Only certified batches are admitted to our extraction line, which uses cold sieving, a solvent-free technique that maintains the native plant structure without decarboxylation or degradation. The result is a resin rich in actives, free from additives, excipients or synthetic carriers.
Conclusion
In an industry often focused on potency and speed, Beldia represents a return to balance, tradition, and natural therapeutic value. Demetra Green Labs is proud to elevate this Moroccan landrace to the global stage — not as a relic of the past, but as a pharmaceutical raw material of the future.
Through rigorous selection, controlled processing, and full regulatory alignment, we deliver a product that meets the expectations of formulators, laboratories, and clinical partners worldwide — all while preserving the cultural and agricultural identity from which it was born.