Fresh Plaza: One of the freezing tunnels in Greenyard’s Hungarian plant has been found to be the source of the Listeria monocytogenes outbreak that led to the large-scale recall this summer. This discovery was made known by the Belgian company. In July, a major recall campaign was taken for certain products. These had been produced between 13 August 2016 and 20 June 2018 in Greenyard’s Hungarian plant in Baja.