the.com/mustiness
The smell of time winning a fight against ventilation.
means A stale, damp, old smell caused by trapped moisture and the mold or mildew that thrives in unventilated spaces.
from From 'musty,' which emerged in the 1500s-1600s, likely an alteration of 'moisty' (full of moisture) — itself from 'moist,' borrowed from Old French 'moiste.' Some have floated a connection to 'must' (new wine), since fermenting must has its own damp, fungal funk, but 'moisty' is the sturdier trail. Either way, the word has always pointed at the same culprit: water that got in and never got out.
- actual cause
- microbial VOCs from mold and bacteria, not age itself
- key compound
- geosmin, same chemical that makes rain smell fresh
- human sensitivity
- nose detects geosmin at 5 parts per trillion
- fix
- airflow and sunlight, not just time or candles