Fresh Frozen Extraction

Fresh frozen extraction refers to a post-harvest processing method where cannabis flower or trim is rapidly frozen immediately after harvest, then subjected to solvent-based extraction (commonly butane, propane, or ethanol). This approach aims to preserve volatile terpenes and cannabinoids by minimizing oxidation and degradation during the processing window. Breeders and processors working in this category often document terpene retention rates as a quality metric. The frozen state is thought to maintain plant material integrity and limit thermal stress compared to room-temperature processing, though extraction efficiency and final terpene profiles vary by solvent choice and freeze technique.

Breeders developing cultivars for extraction markets often select for high terpene density and volatile compound stability, as fresh frozen methods reward genetics with robust aromatic profiles. Lineage records from extraction-focused breeding programs frequently highlight terpene preservation potential as a selection criterion.