Cantillon Brussels Sprouts Lambic

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Cantillon 'Ultimate Zwanze' Choux de Bruxelles (Brussels Sprouts Lambic) was a small, experimental lambic produced around 2009.
Description
In 2015, Jean Van Roy discussed this beer in an interview on The Sour Hour (Basic Brewing Radio) podcast, in which he said "10 years ago, we went with friends to Moeder Lambic. In this time, it was possible to get free postcards. And one of those postcards was with Brussels sprouts. And we were a bit drunk, and a friend of mine told me “you never used Brussels sprouts”. And I told him “I will do it”. And one week or two later, I made that experiment, very small, 20 or 30 liters. A blend of lambic with Brussels sprouts. If you like Brussels sprouts, it was nice. If you don’t like it, it was…it was probably the worst beer I’ve produced. But it tasted of Brussels sprouts, for sure". [1]
Because of the experimental and ironic nature of the beer, it was nicknamed the 'Ultimate Zwanze'. According to Jean Van Roy, as of recently (around 2025), the beer has mostly fermented out the traces of Brussels sprout aromas and now tastes like a normal gueuze.
References
Belgian Collector's List - http://www.jacquestrifin.be/brasseries_bieres/bruxelles_cantillon.php
Belgian Label Service - http://users.telenet.be/label.service/brew.htm