In the location's words:

Beer has been brewed in Bremen since the 11th century. The quality of traditional Bremen varieties such as red beer, porter and ale were not only appreciated at home. Bremen's art of brewing was exported on a large scale to Holland, England and Scandinavia.
The number of breweries was once large. In 1748, there were still 35 breweries in Bremen. This diversity later declined continuously. It is hard to believe that only three breweries were brewing beer in a city with 550,000 inhabitants in 2015. It was time to open a new chapter: the Freie Brau Union Bremen was (re)opened in December 2015.