The Gueuze Tilquin à l’Ancienne is a spontaneous fermentation beer obtained from the blending of 1, 2 and 3 years old lambics. Unfiltered and unpasteurized, it is re-fermented in the bottle for a minimum period of 6 months.

The lambics used were fermented and matured in Tilquin's own oak barrels at the blendery. They are made from worts brewed by Boon, Lindemans, Girardin and Cantillon.

The taste is tart and dry but has a certain roundness that makes this Gueuze à l’ancienne particularly accessible for non-experts. It will also delight fans of the genre for its sweet complexity. It also has a slight dry bitterness because of the youth of the oak barrels used, as they still release some tannins. It has a fresh lemony nose.