The Fruit Lambic is a complex, fruity, pleasantly sour, wild wheat ale fermented by a variety of Belgian microbiota, and showcasing the fruit contributions blended with the wild character. The type of fruit can sometimes be hard to identify as fermented and aged fruit characteristics can seem different from the more recognizable fresh fruit aromas and flavors.
The variety of fruit generally determines the color, although lighter-colored fruit may have little effect on the color. The color intensity may fade with age. Clarity is often good, although some fruit will not drop bright. A thick rocky, mousse-like head, sometimes a shade of fruit, is generally long-lasting (carbonation-dependent). Carbonation is typically high, but must be specified.
The specified fruit should be the dominant aroma. A low to moderately sour character blends with aromas described as barnyard, earthy, goaty, hay, horsey, and horse blanket (and thus should be recognizable as a lambic). The fruit aroma commonly blends well with the other aromas. An enteric, smoky, cigar-like, or cheesy aroma is unfavorable. No hop aroma.
The specified fruit should be evident. Low to moderately sour flavor, often with an acidic bite in the finish. The classic barnyard characteristics may be low to high. When young, the beer will present its full fruity taste. As it ages, the lambic taste will become dominant at the expense of the fruit character—thus fruit lambics are not intended for long aging. The finish is commonly dry and tart, but a low, complementary sweetness may be present; higher sweetness levels are not traditional but can be included for personal preference (sweetness level must be specified). A mild vanilla and/or oak flavor is occasionally noticeable. An enteric, smoky or cigar-like character is undesirable. Hop bitterness is generally absent; acidity provides the balance. No hop flavor.
Light to medium-light body. In spite of the low finishing gravity, the many mouth-filling flavors prevent the beer from tasting like water. Has a low to high tart, puckering quality without being sharply astringent. Some versions have a light warming character. Carbonation can vary from sparkling to nearly still (must be specified).