The Belgian Quadrupel (sometimes simply referred to as a “Quad”) is a dark, complex, very strong ale with a delicious blend of malt richness, dark fruit flavors, and spicy elements. Complex, rich, smooth and dangerous.
Deep amber to deep coppery-brown in color (dark in this context implies more deeply colored than golden). Huge, dense, moussy, persistent cream- to light tan-colored head. Can be clear to somewhat hazy.
Complex, with a rich-sweet malty presence, significant esters and alcohol, and an optional light to moderate spiciness. The malt is rich and strong, and can have a deep bready-toasty quality often with a deep caramel complexity. The fruity esters are strong to moderately low, and can contain raisin, plum, dried cherry, fig or prune notes. Spicy phenols may be present, but usually have a peppery quality not clove-like; light vanilla is possible. Alcohols are soft, spicy, perfumy and/or rose-like, and are low to moderate in intensity. Hops are not usually present (but a very low spicy, floral, or herbal hop aroma is acceptable). No dark/roast malt aroma. No hot alcohols or solventy aromas.
Similar to aroma (same malt, ester, phenol, alcohol, and hop comments apply to flavor as well). Moderately malty-rich on the palate, which can have a sweet impression if bitterness is low. Usually moderately dry to dry finish, although may be up to moderately sweet. Medium-low to moderate bitterness; alcohol provides some of the balance to the malt. Generally malty-rich balance, but can be fairly even with bitterness. The complex and varied flavors should blend smoothly and harmoniously. The finish should not be heavy or syrupy.
High carbonation but not sharp. Smooth but noticeable alcohol warmth. Body can range from medium-light to medium-full and creamy. Most are medium-bodied.