ChocolateHQ

Mineral

Wet stone, slate, iron. The least well understood note in chocolate, and the one most likely to be a projection.

Mineral descriptors — wet stone, slate, flint — are borrowed from wine writing, and their status in chocolate is genuinely unclear. There is no established mechanism by which soil minerals transfer a taste to a cacao bean, and the same claim in wine has been extensively disputed.

What tasters are probably describing is a combination of low fruit, moderate astringency and a particular kind of dryness on the finish. That is a real sensory experience; whether it has anything to do with minerals is a different question, and this record declines to assert that it does.

Descriptors used
wet stone, slate, flint, iron, chalk
Desirable?
Used as a compliment in tasting writing. This record records the descriptor without endorsing the terroir explanation attached to it.

Where it comes from

More than one route produces this note. Each entry says how to tell it apart from the others.

  • From where it grew

    Sources disagree

    Frequently attributed to soil composition, by analogy with wine writing. ChocolateHQ has found no mechanism in the sources consulted by which soil minerals would transfer a taste to the bean.

    How to tell: Treat mineral descriptors as a description of a sensory impression rather than as a claim about soil. The impression is real; the causal account is not established.

    Source: ChocolateHQ

  • Created during fermentation

    Inferred

    Low fruit development combined with moderate astringency produces a dry, stony impression on the finish.

    Source: Wiley-Blackwell

Related

Developed during

  • FermentationThis stage is where the note is created, amplified or destroyed. Wet stone, slate, iron. The least well understood note in chocolate, and the one most likely to be a projection.

Sources

  • ChocolateHQ editorial synthesis — ChocolateHQ(citation identity confirmed; passage not re-read)