The first line of the second verse is:
Deutsche Frauen, deutsche Treue, Deutscher Wein und deutscher Sang
Which translates to:
German women, German loyalty, German wine and German song
Why is it that wine was emphasized over beer? Since beer is so ubiquitous in German culture today, was there some sort of cultural shift that led to wine becoming less important than beer?
<pedant>"Deutsche Frauen, deutsche Treue, Deutscher Wein und deutscher Sang" is the first and second line of the second verse of the Deutschlandlied. Only the third verse of the Deutschlandlied is the German national anthem.</pedant>
In essence, beer was (and still is in my opinion) something much less 'status giving' as opposed to wine. While German beer was always an important part of German culture, so was wine. The golden age of German wine from the Rhein and the Mosel started around 16th century where the famous Rieslinger grapes were used. This Rheinland Wein was in places like England as much of a luxury item as a Malmsey. One should also take into consideration the type of person who wrote the lyrics: August Fallersleben was someone studied in Bonn and visited Italy on a regular basis, therefore it is only natural that he would write about the famous German wine.