Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News Editorials & Other Articles General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

Cooking & Baking

(2,748 posts)

5. Depends on how warm it is

Tue Jul 1, 2025, 07:39 PM

Jul 1

On a hot day, if the mayo is outside, it could turn bad in under an hour - room temperature (air conditioned) I'd trust it for maybe 2 hours.

Edit history

Please sign in to view edit histories.

1 members have recommended this reply (displayed in chronological order):

13 replies

= new reply since forum marked as read

Highlight:

How long does mayonnaise (like in potato salad, macaroni salad, tuna salad) [View all] no_hypocrisy Jul 1 OP

about 37 seconds. ret5hd Jul 1 #1

LOL. In this heat you're probably right. 2MuchNoise Jul 1 #2

some parts of the country you can only... ret5hd Jul 1 #7

LOL 2MuchNoise Jul 1 #8

Personally I err on the side of caution but here's a nice guide Ritabert Jul 1 #3

I would recommend keeping something like that out for JMCKUSICK Jul 1 #4

Depends on how warm it is Alice Kramden Jul 1 #5

One or two hours, but the mayo isn't the problem. sl8 Jul 1 #6

Its density of mayo and salad, and salt percentage Akakoji Jul 1 #9

Rule of thumb we used to live by was moniss Jul 1 #10

Mayonnaise is poison immediately upon being made into mayonnaise mahina Jul 1 #12

It's not the mayo that is the big danger...it's the potatoes Trueblue Texan Jul 2 #13