‘Do you know this beer style?’ Marco Lauret, brewer at Duits & Lauret, asked me. To his e-mail, he attached a jpg file of a label from a long closed brewery in the town of Culemborg, the Netherlands. A label for a beer called ‘Berliner Oud’. When I receive such a message, I always hope that it will lead to an ancient recipe being brewed again, so I thought: great, I’ll just dig up an old brewing instruction from Berlin, send it to Marco, and my job is done. But.. what exactly was this Berliner Oud?