 After two decades, Haut-Bailly was sold to Franz Malvesin who during his ownership experimented with some questionable techniques, such as pasteurization and early bottling.After his death in 1923 practices were reverted to normal, though under the various following owners, the results were unremarkable.In 1955, the property was bought by the Belgian wine merchant Daniel Sanders, beginning a prosperous period of quality and restored reputation.