Here are a few tips to help you:   

• Cook hamburgers until the juices run clear and the insides are brown or gray.  
• Cook other red meats to 160 degrees Fahrenheit.  Cook poultry to 180 degrees Fahrenheit.  Cook fish until it flakes easily with a fork. 
• Never use raw eggs in food unless the dish is going to be cooked or the egg product is pasteurized.  Salmonella, a common bacteria that causes food poisoning, can grow inside fresh, unbroken eggs.  Cook eggs until the yolks are firm, not runny.  Scramble eggs to a firm texture.  And do not eat cookie dough made with raw eggs. 
• When you cook ahead of time, divide large portions of food into small, shallow containers for refrigeration.  The key is safe, rapid cooling to prevent the growth of bacteria.