L'Ambigu Riesling is a beer-wine hybrid created by blending wild-fermented beer with Riesling grapes. Fermentation occurs spontaneously, relying on natural yeasts and bacteria present in the environment, and the process includes long maturation in wooden barrels, which adds depth and complexity to the flavor.

The Riesling grapes bring pronounced aromas of citrus, white flowers, and stone fruits, while the beer base contributes a gentle tartness, subtle grain notes, and earthy undertones. The aroma intertwines fruity and floral nuances with delicate mineral tones, characteristic of this grape variety.

The flavor is refreshing, with balanced acidity and a light tannic touch from the grape skins, finishing dry and elegant.