Aroma
Variable by base style. Young Brett beers will possess more fruity notes (e.g., tropical fruit, stone fruit, or citrus), but this is variable by the strains of Brett used. Older Brett beers may start to develop a little funk (e.g., barnyard, wet hay, or slightly earthy or smoky notes), but this character should not dominate.
Aparência
Variable by base style. Clarity can be variable, and depends on the base style and ingredients used. Some haze is not necessarily a fault.
Sabor
Variable by base style. Brett character may range from minimal to aggressive. Can be quite fruity (e.g., tropical fruit, berry, stone fruit, citrus), or have some smoky, earthy, or barnyard character. Should not be unpleasantly funky, such as Band-Aid, fetid, nail polish remover, cheese, etc. Always fruitier when young, gaining more funk with age. May not be lactic. Malt flavors are often less pronounced than in the base style, leaving a beer most often dry and crisp due to high attenuation by the Brett.
Corpo
Variable by base style. Generally has a light body, lighter than what might be expected from the base style but an overly thin body is a fault. Generally moderate to high carbonation. Head retention is variable, but often less than the base style.
Contexto
The base style describes most of the character of these beers, but the addition of Brett ensures a drier, thinner, and often fruitier and funkier product. Younger versions are brighter and fruitier, while older ones possess more depth of funk and may lose more of the base style character. The Brett character should always meld with the style; these beers should never be a 'Brett bomb'. While Brett can produce low levels of organic acids, it is not a primary beer souring method.