A speciality coffee flavour note across London.
Astringency in coffee presents as a dry, puckering sensation that coats the mouth and lingers on the tongue and inner cheeks, rather than a taste in the conventional sense. It is caused by polyphenols and tannins binding with proteins in saliva, reducing lubrication and creating that characteristic drying effect. Under-extraction, over-roasting, or the presence of underdeveloped bean compounds can all intensify this quality, as can certain natural processing methods that leave higher levels of organic acids intact.
Coffees from Ethiopia and Yemen, particularly those processed using the natural or dry method, often carry some degree of astringency alongside their fruit-forward characteristics. Robusta-dominant origins such as Vietnam and parts of Uganda typically produce more pronounced astringency due to higher chlorogenic acid and tannin content. Washed coffees from high-altitude origins tend to show milder astringency, though it can still appear when beans are harvested slightly underripe or processed with inconsistent fermentation control.
On a bag or cafe menu, look for tasting notes that reference dryness, grip, or terms such as "black tea" or "grape skin", which often signal some degree of astringency in the cup. Natural and pulped natural processed coffees are more likely to express this quality than cleanly washed lots. Brew methods that involve longer contact time between water and grounds, such as French press or cold brew, can amplify astringency, while a well-calibrated pour-over tends to keep it measured and integrated.
Take our 60-second flavour quiz and discover roasts across London that are aligned with your palate — including ones carrying astringent (dry) notes.