Club-Mate is a caffeinated carbonated mate-extract (Yerba mate extract is a nutritional supplement that is made from the leaves of the yerba mate plant, which is found in parts of South America) beverage made by the Loscher Brewery (Brauerei Loscher) near Münchsteinach, Germany. The drink was “discovered/invented in 1924 under the original name of Sekt-Bronte. The rumour that there is a difference in taste between the yellow- and bluecapped club-mate has been denied by Loscher.
There is no doubting that Club Mate is an aquired taste. Most people are a little shocked on their first sip, probably due to the low sugar content, but it can be a real grower.
The drink’s motto, “Man gewöhnt sich daran” translates roughly as “One gets used to it!”