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Geosmin or Terroir? Understanding Earthy Aromas in Wine

Geosmin or Terroir

Have you ever noticed the distinct earthy scent that fills the air after a summer rain? That unmistakable aroma comes from geosmin, a naturally occurring compound responsible for the smell of wet soil. Some wines carry a similar earthiness, leading to an ongoing debate: is it a reflection of terroir, or is it a sign […]

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Geosmin

Geosmin - wine wiki

What is Geosmin? Geosmin is a naturally occurring organic compound. It responsible for the distinct earthy, musty aroma often associated with wet soil after rainfall. This compound is a bicyclic alcohol with the chemical formula C12H22O and belongs to the class of terpenoids. It is primarily produced by microorganisms such as Streptomyces (a genus of […]