Why does coffee read as smoky?
Roasting drives a cascade of chemical reactions — but the smoky, clove-like character that defines a dark cup traces back to a single high-impact phenol formed when ferulic acid breaks down under heat.
Coffee's smoky register isn't from char — it's a phenolic compound doing the heavy lifting at an OAV that dwarfs its co-contributors. The acids beneath it add textural complexity without ever announcing themselves.
See exactly how far over the detection threshold each compound is — the part of the chemistry that explains why this pairing works. Plus the full ranked list for any ingredient, compound index, and Compare tool.
OAV (Odor Activity Value) = concentration ÷ detection threshold. Numbers above 1 mean the compound contributes detectably to aroma.