Kief means “pleasure, intoxication”, and is sometimes transliterated as keef or kif. It refers to the resinous trichomes of cannabis. In the production process, Kief crystals usually fall through a screen and collect into a small compartment. Kief contains a much higher concentration of psychoactive cannabinoids, such as THC, than that of the cannabis flowers from which it is derived. Traditionally, kief has been pressed into cakes of hashish for convenience in storage, but can be vaporized or smoked in either form.