At the end of November 2013 Stiftung Warentest, the German consumer testing foundation, gave Ritter Sport’s whole-nut chocolate the grade mangelhaft, deficient. The reason was the label “natural flavoring” for the flavor piperonal, which the testers said was produced chemically. Ritter Sport and its flavor supplier Symrise said the flavor was natural. The company went to court. The Munich Regional Court barred Warentest from repeating its claim, and the Munich Higher Regional Court rejected Warentest’s appeal. In September 2014 Warentest ended the dispute. It had not explained precisely and fully enough how it reached its verdict.