What Is Acidity in Coffee?

Acidity is the bright, lively sensation that can make coffee taste fresh and structured. It is not the same as simply being sour.

Good acidity may remind tasters of citrus, berries, stone fruit, apple, or other fresh foods. Poorly balanced acidity can feel sharp, thin, or under-extracted.

Origin, species, ripeness, processing, roasting, water, and brewing all influence how acidity is perceived.

Robusta generally shows acidity differently from many Arabicas, but high-quality canephora can still have brightness and fruit structure.

Tasting takeaway: judge acidity by quality, type, and balance. The goal is not maximum acidity; it is an acid structure that supports sweetness, aroma, and the rest of the cup.