limited edition sour beer

Science Of Sour Ale Brewing stands for beers brewed authentically in the South of West Flanders according to Belgian tradition. The beers age authentically but are intriguing, fascinating and bitter. They are Sour Ales with a twist.

Our barrel master is completely familiar with the ageing process and controls the microbiological process taking place in all the oak ’foeders’ (large barrels three times the average barrel size). He puts his curiosity on hold for two years and practices the art of patience in order to preserve the authenticity of the ageing process. The wood provides the ideal habitat for the various micro-organisms that enrich the beer with acids, higher alcohols and fruity esters. The staves ensure a light, intriguing oxidation of the beer. It is the combination of authenticity and science with a twist. This twist becomes a reality in our barrels and manifests itself in the taste. In short, we put our money where our mouth is.



Our team has more than 15 years of experience and our brewery in the South of West Flanders is located at the birthplace of the Flanders Red Ale. The beers are aged authentically in our barrel room that holds 10 ’foeders’. We don’t care about hype and trends; we go with our gut feeling. The barrel room is the ideal place to discovery patience, intrigue, curiosity and authenticity. The process is slow, organic and unpredictable. It is science with a twist.



XX Grand Cru contains 6% alcohol and is a slow-aged beer that lingers for XX (20) months in oak barrels. The result is perfection in your glass; our master brewer selects the best barrels and creates his masterly blend of 100% ‘Foederbier’. Enjoy the feeling as the beer caresses your palate and discover hitherto unknown sensations.

This deep golden beer has explosive scents and aromas of ripe red apple, small red berries, blackcurrants, dried plums and pleasant notes of balsamic vinegar. It was aged for 20 months in wooden barrels to give it the typical notes of vanilla, cognac, nuts and caramel biscuits. There is also a slight hint of Marsala. The taste is particularly refreshing thanks to the presence of mild acids that guarantee a refreshing effect on the palate. The sweet quality of the beer tempers the malty acidity and creates a harmonious whole.


Fall under the charm of the mild sweet-sour character of this blend of young and old ‘Foederbier’ and young brown ale, with an alcohol content of 5.2%. Go back in time, and pause to reflect on what happened 12 months ago... For that is when this beer came into being.

This brown ale has a pleasant aroma of green apple, redcurrant, caramel, apple cider vinegar and currant bread. It is aged for 12 months in wooden barrels, which gives it its characteristic aromas. It has a lovely, rounded flavour with alternating dashes of sweet and sour. 



  • Spareribs with Hoisin sauce
  • Fourme d’Ambert cheese with dates
  • Hare stew with cranberry and port sauce
  • Speculoos fantasy dessert with red fruit and mascarpone


  • Quiche with shrimps
  • Tiramisu
  • Semi-hard cheeses like Cheddar, or Echte Loo
  • Classic meat stew


Kortrijksestraat 103 A
8501 Heule, Belgium
+32 (0) 56 13 04 04


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