In the run-up to our Annual General Meeting, the 4th Mineral Water Celebration Day took place in Hochheim (Germany) on October 24th and 25th 2019 under the direction of Peter Schropp, with support of Marion Schropp. After the Managing Director of Tetra Pak, Mr. Stefan Karl, opened the meeting, we engaged in extensive sensory assessment tests to discover taste and mouth feel for various minerals. The presentation of new sustaining members and natural springs companies, who commissioned sensory assessment reports from the WSU, began with a tasting of the corresponding mineral waters. After all, the topic was “Flavor or Off-Flavor”, in which numerous natural mineral waters and some added off-flavors were taste-tested. The second day of the workshop focused mainly on the topic of “food pairing”. In accordance with theoretical principles, different waters were combined with different food ingredients.