What is "bionade-biedermeier"

Bionade-Biedermeier is a German neologism combining Bionade (a trendy lemonade brand) and Biedermeier (an era of Central European culture between 1815 and 1848). The coinage was introduced in 2007 by Henning Sußebach, a German journalist, in an article that appeared in Zeitmagazin concerning Berlin's Prenzlauer Berg lifestyle. The hyphenated term gained traction and has been quoted and referred to since.