After half an hour on three burners the substrate is up to 166F. Two burners kept it at that temp for an hour. Published August 21, 2016 at 998 × 698 in Pasteurizer from a Food Steamer After half an hour on three burners the substrate is up to 166F. Two burners kept it at that temp for an hour. After half an hour on three burners the substrate is up to 166F. Two burners kept it at that temp for an hour.