Kief (from colloquial Arabic: كيف kēf/kīf pronounced [keːf, ki(ː)f], "pleasure"), sometimes transliterated as keef or kif, refers to the resin glands (or trichomes) of cannabis that may accumulate in containers or be sifted from loose dry cannabis flower with a mesh screen or sieve. 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.
- Kief (What is it and how is it made?) Ed Rosenthal, Cannabis Culture Magazine
- Kief (What is kief? How do I get kief and what to do with kief?) Kevin Macpherson, Best Grinder Guide