Oud Beersel is a traditional lambic brewery whose wort is produced at Boon.  Originally founded by the Vandervelden’s and now run by Gert and Jos Christiaens, the brewery has been producing lambic for more than a hundred years.

Oud Beersel is focused on creating artisan products following traditional processes.  That focus has led to some of the most dedicated, steadfast yeasts to ever fill the halls (or a SpontanAir jar).

SpontanAir Oud Beersel yeasts are our workhorse yeasts.  They put the Oud in Oude.