On July 26, 2018, the German Federal Institute for Risk Assessment (BfR) published a report investigating the migration of metals from enameled grill racks into different food simulants. In total, eight grill racks and two grill trays were tested and the migration of aluminum, antimony, arsenic, lead, cadmium, chromium, iron, cobalt, lithium, and nickel into four different food simulants was measured. Some of the grill racks released considerable quantities of aluminum, antimony, arsenic, and nickel. The BfR defined acceptable exposure levels for the migration of all tested metals from enameled grill racks based on toxicological data and concluded that tolerable levels for arsenic and nickel were exceeded in some cases. However, other grill racks released only minor amounts of metals showing that the safe production of enameled grill racks is possible.
BfR (July 26, 2018). “Freisetzung von Metallen aus emaillierten Grillrosten: Einige geben zu viel ab.” (pdf; in German)
Chemical Watch (August 7, 2018). “Nickel, arsenic released from grill racks, German authority finds.“