Mankato (KMKO)-Food safety is a necessary ingredient for every meal and the state of Minnesota requires restaurant managers to be certified by a licensed professional.  Lars Johnson conducted a seminar yesterday in Mankato.  Johnson, a Certified Professional of Food Safety, says the requirements are nothing new.  At least one person at every restaurant needs to take the eight hour course, then pass the test to be certified.  To learn more, visit Johnson's website at www.foodsafetyguy.com