It’s less time than you think.

This would be one hour or less if the temperature was 90F, she says.

Does Mayo Matter?

potato salad in a bowl topped with dill and parsley

Simply Recipes / Adobe Stock

Just be smart about how you serve it.

Keeping a digital thermometer handy would help provide some confidence in the actual temperature of the potato salad.

When foods go bad, this is an indication of declining quality, not safety.

potato salad (mixed with mayo and mustard) in a bowl next to a checkered table napkin

Simply Recipes / Adobe Stock

Any leftovers that have been kept at refrigerated temperature can be stored for about three to four days.

If you make the potato salad yourself, be smart about kitchen cleanliness and storage.