Salmonella Enteritidis is a bacterium that can be inside shell eggs. Cooking the egg or egg-containing food product to an internal temperature of at least 160 F (71 C) kills the bacteria. Refrigerating will not kill the bacteria. Other foods containing raw eggs, such as homemade ice cream, cake batter, mayonnaise, and eggnog, carry a Salmonella risk too. Their commercial counterparts are usually made with pasteurized eggs; that is, eggs that have been heated sufficiently to kill bacteria, and also may contain an acidifying agent that kills the bacteria. But the best practice, even when using products containing pasteurized eggs, is to eat the foods only as they are intended to be eaten. Do not sample unbaked store-bought cookie dough.Consider using pasteurized eggs for homemade recipes that do not include a cooking step, such as eggnog or Caesar salad dressing. Pasteurized eggs are usually sold in the grocer's refrigerated dairy case.