The short flm ’90 Days’ Duvel gives us the frst glimpse behind the mythical brewing process of the Belgian fnest. This is done in the typical quirky way, because the iconic maturaton process is apparently not only skill and patence, but also a good dose of Belgian rock. Jan Paternoster – frontman for Black Box Revelaton – and singer-songwriter Daan came down to the legendary cellars to give thousands of botles to their inimitable taste. Thus they symbolize Duvels years of passion and never-ending quest for perfecton.