Cook food thoroughly to prevent food poisoning
To kill any harmful bacteria that may be present, use a food thermometer. Hamburgers should be cooked to 160°F. If a thermometer is not available, make sure hamburgers are brown all the way through, not pink. Chicken should be cooked to at least 165°F. If you partially cook food in the microwave, oven or stove to reduce grilling time, do so immediately before the food goes on the hot grill.
Refrigerate and freeze food promptly
It can be hard to remember while a party is going on, but food should not be left out of the cooler or off the grill for more than two hours. Never leave food out for more than one hour when the temperature is above 90°F.