Cantillon is a traditional Belgian brewery located in the Brussels region, known for its unique sour beers. Founded in 1900 by Jean Cantillon, the brewery uses spontaneous fermentation, allowing wild yeast and bacteria from the environment to create complex flavors. This method results in distinctive lambics, gueuze, and fruit beers that are highly regarded by beer enthusiasts. The brewery operates with a focus on traditional brewing techniques and local ingredients, including barley and hops. Cantillon has gained international acclaim, contributing to the craft beer movement and inspiring many modern brewers to explore sour and wild fermentation styles.