Lineage: Blue Steel F1 x (Blue Steel F2 x Purple Ice Water) Cured Resin is a firm glass-like cannabis concentrate made from, as its name would suggest, cured and dried cannabis flower. From there, that cannabis material is boiled down to a powerful, potent concentrate by using a solvent solution to get rid of the organic aspects of that cured cannabis, leaving behind the THC, CBD, and other cannabinoids.