Flavour note

Morello Cherry (Sour) coffee in London

A speciality coffee flavour note across London.

Morello cherry as a sour note in speciality coffee presents as a sharp, fruity acidity with the distinctly tart, almost wine-like quality of the dark sour cherry variety rather than the sweetness of fresh dessert cherries. In the cup it typically registers as a bright, clean sourness layered over deeper stone fruit tones, often with a slight astringency at the finish. This character is most commonly associated with natural or anaerobic processing, where extended contact between the coffee seed and its fruit mucilage allows fermentation-derived organic acids and fruit compounds to develop in the bean.

How morello cherry (sour) notes develop

Coffees from Ethiopia, particularly those from the Yirgacheffe and Sidama regions, typically produce this kind of tart cherry note, especially when processed using the natural method. East African origins more broadly, including certain Kenyan and Burundian lots, often carry a pronounced red or dark fruit acidity that can read as morello cherry in the cup. The note tends to emerge at lighter roast levels, where the delicate acidic compounds responsible for that characteristic sourness are preserved rather than reduced by heat.

What to look for

On a bag or cafe menu, look for tasting notes that reference sour cherry, dark cherry, or red berry alongside descriptors such as wine-like, fermented, or stone fruit, as these often signal the same flavour family. Natural or anaerobic process coffees from East Africa are a reliable place to start, particularly those roasted on the lighter end of the spectrum. Filter brew methods such as pour over or Chemex tend to highlight this note clearly, as they preserve acidity and allow the fruit character to register without the intensity that espresso preparation can introduce.

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