The beer tradition of brewery Timmermans reaches back to 1702. This makes the Timmermans brewery in Itterbeek the oldest surviving lambic brewery. In 1993 the Timmermans brewery became part of the major brewery group John Martin. The lambic beers are nonetheless still being brewed according to traditional methods.
The Oude Geuze and Oude Kriek of the Timmermans brewery are known for their distinctive sour taste. The brewery's line-up also features various fruit beers and authentic faro. The brewery can be visited by appointment. The brewery shop opens its doors every second and fourth Sunday of the month.