Kief
Kief, Kef, Keef or kif refers to the loose, dried resin glands (or trichomes) of cannabis which accumulate on containers, in grinders, or have been removed with a kiefing screen or sieve. It is sometimes erroneously called pollen or crystal. Kief can be smoked in a number of ways, including using smoking pipes, bongs, and vaporizers. Kief is a rare item among cannabis users, and is prized because of its extremely high THC content.
