A speciality coffee flavour note across London.
A yeasty note in the cup tends to present as a warm, doughy quality, often reminiscent of bread proving, biscuit dough, or the slightly fermented character of sourdough crust. It sits on the palate as a soft, rounded sensation rather than a sharp or acidic one, and can carry a subtle fermented sweetness depending on how it is expressed. The note typically arises from yeast activity during wet or natural processing, where fermentation compounds such as esters and alcohols carry through into the green bean and survive into the roast.
Coffees from Ethiopia and Yemen often display yeasty qualities, particularly those processed using traditional natural or dry methods where the fruit and its naturally occurring yeasts remain in contact with the bean for extended periods. Wet-processed coffees that have undergone prolonged or less controlled fermentation, sometimes from Central American origins such as Guatemala or Honduras, can also exhibit this character. The note is typically more pronounced when producers work with longer fermentation windows or in humid conditions where yeast populations are particularly active.
On a bag or menu, look for tasting notes that reference bread, dough, sourdough, or fermented fruit, as these often signal the same underlying character as a yeasty quality. Processing descriptors such as natural, dry-processed, or extended fermentation are a reliable indication that this note may be present. Brew methods that preserve body and softer aromatics, such as French press or Moka pot, tend to allow this quality to express itself more clearly than very clean, high-clarity methods like a light-roast filter pour-over.
Take our 60-second flavour quiz and discover roasts across London that are aligned with your palate — including ones carrying yeasty notes.