How long can I keep tuna, chicken, potato, and egg salad made with mayonnaise on the table or in the refrigerator?

Refrigerated, they’ll last for 3-5 days.  Leave these out on the table a maximum of  2 hours. These are the usual recommendations for all leftovers. 
Susan Brewer, Ph.D. University of Illinois,  Department of Food Science and Human Nutrition


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