Oude Geuze is a traditional Belgian beer made by blending young and old lambic beers. This unique fermentation process involves spontaneous fermentation, where wild yeast and bacteria from the environment contribute to its complex flavors. The beer is typically bottled with a secondary fermentation, resulting in a naturally carbonated and effervescent drink. The flavor profile of Oude Geuze is characterized by its tartness, fruity notes, and a dry finish. It often features hints of citrus, apple, and earthy undertones. This beer is usually enjoyed in a tulip glass, allowing drinkers to appreciate its aroma and complexity.