Aroma
Young versions can be quite sour and fruity, but can develop barnyard, earthy, goaty, hay, horsey, or horse blanket funkiness with age. The fruit character can take on a light citrus fruit, citrus rind, pome fruit, or rhubarb quality, getting more complex with age. Malt can have a light bready, grainy, honey, or wheat-like quality, if noticeable. Should not have enteric, smoky, cigar-like, or cheesy faults. No hops.
Aparência
Pale yellow to deep golden in color; age tends to darken the beer. Clarity is hazy to good. Younger versions are often cloudy, while older ones are generally clear. White colored head generally has poor retention.
Sabor
Young versions often have a strong lactic sourness with fruity flavors (same descriptors as aroma), while aged versions are more balanced and complex. Funky notes can develop over time, same descriptors as aroma. Low bready, grainy malt. Bitterness generally below sensory threshold; sourness provides the balance. No hop flavor. Dry finish, increasing with age. Should not have enteric, smoky, cigar-like, or cheesy faults.
Corpo
Light to medium-light body; should not be watery. Has a medium to high tart, puckering quality without being sharply astringent. Traditional versions are virtually to completely uncarbonated, but bottled examples can pick up moderate carbonation with age.
Contexto
A single-batch, unblended beer, reflecting the house character of the brewery. Generally served young (6 months) from the cask. Younger versions tend to be one dimensionally sour since a complex Brett character takes a year or more to develop. A noticeable vinegary or cidery character is considered a fault by Belgian brewers. Typically bottled only when completely fermented. Lambic sweetened with raw sugar at service time is known as Faro.