# Brett

/ˈbɹɛt/ (US)

Source: https://englishreference.com/word/brett
Updated: 2026-08-15

## Senses

### 1. yeast in brewing/wine

noun · CEFR C2 · Informal · Technical

a type of yeast used to make certain beers; it is also known for changing the flavor of wine.

For teachers: An informal term for Brettanomyces, a yeast genus used intentionally in some beer styles but often considered a spoilage agent in winemaking.

- Some people love the earthy taste that brett gives to farmhouse ales.
- The winemaker was concerned that a trace of brett in the barrels might overshadow the delicate fruit notes of the vintage.

Usage: Usually treated as an uncountable noun in both brewing and wine contexts.

Teaching tip: This is a highly specialized term used by enthusiasts and professionals; most learners will only encounter it in the context of craft beer or wine tasting.

## Examples

- This beer has a strong hint of Brett in the finish.
- While some winemakers view Brett as a contaminant, others use it intentionally to add complexity to their red wines.
- The presence of Brett in the fermentation process can yield a spectrum of volatile phenols, ranging from pleasant spice to undesirable medicinal notes depending on the strain.

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