Over-drying is taking buds past the point where they're jar-ready. Typical signs: buds crumble rather than spring back, big stems shatter, equilibrated jar RH sits below about 55% (aw under about 0.55), and the smoke is harsh with a dull, flat aroma. It usually comes from warm, dry rooms, too much airflow on the buds, or leaving material hanging too long.
In practice
Prevention: dry slowly, about 15-21 °C (60-70 °F) and 55-62% RH for 7-14 days. Check stems from about day 5-7 and jar when small stems snap but larger ones still bend.
If buds are a little too dry: jar them and let moisture even out from the core first. If still under range, the GenetixBay approach is to put a fresh bud in the jar to bring moisture back, rather than a humidity pack or other wet items. Expect only partial recovery. Texture and burn improve, but lost terpenes are gone and hay notes from a too-fast dry stay.
Don't confuse with
- Case hardening: dry outside, wet inside; feels over-dry but isn't.
- Long cure: a slow, healthy moisture decline, not over-drying.
- Hay smell: often caused by over-drying or drying too fast.
Myth check
House position: a cure will never fix a bad dry. See curing and burping.
The relative humidity of the air in a sealed container once it has stopped exchanging moisture with the material inside; ERH / 100 equals the material's water activity.A dark, ventilated space where freshly harvested cannabis is dried under controlled temperature, humidity and gentle airflow, usually for 7-14 days.Pest and disease prevention by changing how the crop is grown, such as humidity, airflow, spacing, watering and cultivar choice, so pests and pathogens struggle to establish.Relative humidity is the water vapour in air as a percentage of what it could hold at that temperature, so the same RH dries plants differently at different temperatures.A salt-solution sachet sold to hold a sealed container at a fixed relative humidity; GenetixBay regards them as a marketing gimmick that robs terpenes.Terpenes are volatile hydrocarbon compounds built from five-carbon isoprene units; in cannabis they are made in the trichome heads and are a major part of aroma and flavour.A drying fault where a bud's surface dries too fast and seals, leaving the core wet; buds feel dry, then rehydrate and risk mould in the jar.A grassy, hay-like aroma in dried cannabis caused by drying too fast, over-drying or bacterial activity; in GenetixBay's view it never fully cures out.A 0-1 measure of how freely available the water in a material is; for dried cannabis flower the accepted range is about 0.55-0.65 aw.The loss of volatile aroma compounds from cannabis through evaporation, oxidation and handling, fastest for monoterpenes and worst in warm, fast drying and poor storage.
