Because people can get sick if they eat food that sits at room temperature, or if germs get into food or drinks. Food can smell good, but if there are germs - it is not safe. This is why all food workers, like you, must learn how to prevent illness with safe food and food service. These safe habits will also help keep you and your family healthy. It is unsafe.
Kill germs with chemicals or high heat.
Lane County's Local Health Department's Environmental Health Services has professional staff who protect the public's health. They do this by inspecting food businesses and by educating and testing workers who handle and prepare food. A germ with only one cell. Soap and hot water will wash away bacteria. A germ that can live inside of a cell.