Pinene
Definition: Pinene is a monoterpene with a sharp, fresh scent of pine needles and resin. It comes in two closely related forms, alpha-pinene and beta-pinene, and is among the most widespread terpenes in the plant world, found in conifers, rosemary, basil and dill. In cannabis, pinene is commonly associated with alert, clear-headed effects.
How Pinene works
Walk through a pine forest on a warm day and much of what you smell is alpha-pinene drifting off the needles. Trees use it, along with other resin compounds, to deter insects and seal wounds. Turpentine is made largely of pinene distilled from pine resin. In cannabis, alpha-pinene is usually the more abundant form and adds a crisp, woody top note.
Quick reference
- Aroma: pine needles, fresh-cut wood, rosemary, a slightly sharp edge.
- Boiling point: about 311°F (155°C) for alpha-pinene.
- Common pairings: myrcene in many earthy strains, terpinolene in fresh, sativa-leaning ones.
- User reports: alertness and focus.
A popular claim, examined
Pinene is often said to counter the short-term memory fog some people report with THC. The idea traces to early lab findings on how pinene affects an enzyme involved in memory signaling. It has not been confirmed in controlled human studies, so treat it as an interesting hypothesis.
Growing notes
Pinene has one of the lowest boiling points among the major cannabis terpenes, so it is easily lost to heat. Strains that smell strongly of pine on the plant can lose that edge in a warm drying room. Keep the dry near 60°F (16°C) and avoid fans blowing directly on hanging branches to preserve it through drying.