Yeasty describes aromas or flavours reminiscent of bread dough, fresh yeast, pastry or brioche. In wine, these notes can develop through contact with spent yeast cells (lees) and, in bottle-fermented sparkling wines, through autolysis as yeast cells break down over time.
Yeasty notes are common in traditional-method sparkling wines such as Champagne and in some still wines aged on their lees, including Muscadet sur lie. The intensity depends on production choices and ageing time. A clean yeasty or bready note is not the same as an unpleasant smell caused by spoilage or contamination.
Example: a bottle-aged traditional-method sparkling wine may show brioche and bread-crust aromas alongside citrus and fine bubbles.
Related terms: lees-aged refers to the winemaking process; autolytic describes aromas produced by the breakdown of yeast cells.
This term is one of hundreds covered in depth across OCS courses, learning paths, and 1-on-1 coaching with Chef Eric.
