Lambic is a unique style of beer originating from the Brussels region of Belgium. It is distinct because it undergoes spontaneous fermentation, meaning it is exposed to wild yeast and bacteria from the environment rather than using cultivated yeast. This process gives lambic its complex flavors and aromas, often featuring fruity, sour, and earthy notes. There are several sub-styles of lambic, including Gueuze and Kriek. Gueuze is a blend of young and old lambics, resulting in a sparkling, effervescent beer. Kriek is made by adding cherries to lambic, imparting a rich fruitiness. Both styles showcase the traditional brewing methods of the region.