How does cocoa build its layered aroma?
Cocoa's scent is not a single note — it's a stack of chemically unrelated compounds pulling in different directions, from fruity esters to floral terpenoids to roast-derived aldehydes.
What registers as 'chocolate' is largely the work of 3-methylbutanal's malty depth — but that depth is propped up by a fruity ester and a floral terpenoid that together keep the profile from reading as purely burnt or bitter.
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.