Flavour note

Walnut coffee in London

7 speciality roasts from 6 London roasters feature walnut notes.

Walnut in the cup presents as a dry, slightly bitter nuttiness with a subtle earthiness underneath, distinct from the creamier quality of hazelnut or the sweetness of almond. It often carries a mild astringency on the finish, reminiscent of biting into a walnut skin, which can add structural complexity to the overall flavour profile. This character is typically linked to naturally occurring chlorogenic acids and lipid compounds in the bean, and is most commonly drawn out by medium to medium-dark roast levels where sugars have developed but brightness has begun to settle.

Walnut in coffee carries a dry, slightly bitter richness — think the papery skin of a freshly cracked walnut — with an earthiness that lingers quietly on the finish. It appears most often in coffees from Brazil, Colombia and India, processed through either anaerobic natural or washed methods, each coaxing the note in subtly different directions. Across London, roasters including Kiss the Hippo, Union and Acorns have shaped seven approved roasts around this grounded, contemplative flavour.

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Top rated walnut coffee roasts in London

Speciality roasts carrying walnut notes, ordered by community rating.

Roasters producing walnut coffee

London roasters with the most approved coffees carrying walnut notes.

Notes that most commonly appear alongside walnut in the same roasts.

Where walnut coffee comes from

Origin countries that most often produce walnut-forward coffees among London roasts.

How walnut coffee is processed

Processing methods associated with walnut notes in London roasts.

Anaerobic Natural 1 Washed 1 Washed, Natural 1

How walnut notes develop

Walnut notes are often found in coffees from Central American origins such as Guatemala and Honduras, where mineral-rich volcanic soils and high-altitude growing conditions tend to produce beans with pronounced nutty and earthy undertones. Wet-processed, or washed, coffees from these regions typically express walnut more cleanly, as the absence of fruit pulp during processing allows the bean's inherent character to come forward without competing sweetness. Natural-processed coffees can also carry walnut as a background note, though it is often layered beneath heavier fruit and fermentation qualities in those cases.

What to look for

On a bag or cafe menu, look for tasting notes that pair walnut with descriptors such as brown sugar, dark chocolate, or cedar, as these tend to appear together in coffees where this note is prominent. Filter methods such as cafetiere and batch brew tend to produce a fuller body that allows walnut's dry, slightly bitter character to show clearly, while espresso can intensify it into something closer to a roasted nut quality. If you enjoy this note, it is worth asking a roaster or barista about medium-roasted washed coffees from Central America, as these are a reliable starting point.

Find coffee matched to your taste

Take our 60-second flavour quiz and discover roasts across London that are aligned with your palate — including ones carrying walnut notes.