It’s less time than you think.
This would be one hour or less if the temperature was 90F, she says.
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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.
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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.