hopIQ found 10 beers with the same citrusy and sour character as Boon Oude Geuze. A monument of spontaneous fermentation — a traditional 100% natural Oude Geuze blended from 18-month-old lambic with a small proportion of 3-year-old beer. Unsweetened, unfiltered and unpasteurised, bottle-refermented, with a fresh citrus and oak character. World Beer Awards Gueuze Winner 2025. Ranked by flavour match rather than popularity.
Closest match: Coolship No.1 — 80%. No twin in the catalogue yet.
3 countriesmatched across 56 flavour tagsbest match 80%

No beer in the catalogue yet — these come closest.
Close on what matters, with one thing they do differently.
Same idea, less detail — open a beer to see the full comparison.