Gueuze

Gueuze is a traditional Belgian sour beer made by blending young (1-year-old) and old (2-3 years) lambics, then bottle conditioning for a secondary fermentation. Characterized by its complex sour profile with notes of hay, barnyard funk, citrus, and aged hops, Gueuze relies on spontaneous fermentation from wild yeasts and bacteria native to Belgium's Senne Valley. The style features wheat and aged hops in its grain bill, with its distinctive character coming entirely from the microflora rather than brewers' yeast.