Oude Geuze Boon VAT 109 Background Brouwerij Boon makes lambic beer. Lambic beers—whether straight lambic, faro, geuze (also spelled gueuze) or fruit based—are indigenous to Brussels and to the rural Zenne (or Senne) River Valley in Belgium. The beer is made through open, spontaneous fermentation and relies upon the unique microorganisms from this region. Of…