Fresh frozen cannabis refers to freshly harvested plant material immediately frozen using dry ice right at harvest within minutes instead of undergoing traditional slow drying and curing techniques that take weeks before extraction. Flash freezing freshly cut whole plants aims to instantly preserve peak aromatic compounds like terpenes before they begin evaporating. It also keeps resin glands intact by avoiding physical agitation and oxidation that degrade potency and flavors during prolonged drying. Keeping tissue frozen circumvents biological metabolic processes that change chemical profiles. This innovative method revolutionized extract potency, purity and terpene expressions starting around 2013. When skillfully implemented, concentrates and hash made from properly frozen raw cannabis can provide exceptional experiences rivaling the remarkable flavors and holistic effects felt when smoking the elite flower they are derived from. While handling frozen material requires adapting some new techniques, the resulting exponential refinement in concentrate quality makes the learning curve well worth it for educated producers and passionate connoisseurs alike.