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Mayo left out overnight keep or throw away?

(63 Posts)
SunshineOverStress Fri 22-May-20 13:29:44

So the mayo was left out overnight, a brand new bottle which had been used once! It’s been warm out and I’ve only just noticed it, is it safe to keep or does it need to be thrown?!

Branster Fri 22-May-20 13:30:35

Throw it away!

dementedpixie Fri 22-May-20 13:31:00

It'll be fine. I assume you mean a bog standard shop bought mayo?

Branster Fri 22-May-20 13:31:15

Rule of thumb with food: if in doubt, don’t.

Pipandmum Fri 22-May-20 13:31:15

As mayo is stored in the cupboard for ages before opening I wouldn't worry.

GreenOliveTree Fri 22-May-20 13:31:31

Yeah we don't keep mayo in the fridge anyway so I'd keep it 🤷🏼‍♀️

nokidshere Fri 22-May-20 13:31:29

I'd just put it back in the fridge and keep it

Elouera Fri 22-May-20 13:31:45

Does it contain egg, or is it just oil?

ScarfLadysBag Fri 22-May-20 13:31:53

I'd keep it. This happens in our house more than I care to reveal and it's always fine grin

Sunshineonacloudyday20 Fri 22-May-20 13:32:22

Listeria - throw away!

isabellerossignol Fri 22-May-20 13:32:36

I'd throw it away if it was homemade. If it's shop bought I'd stick it in the grid and think no more of it.

Whatifitallgoesright Fri 22-May-20 13:32:53

Of course don't throw it away! Just stick it back in the fridge.

isabellerossignol Fri 22-May-20 13:32:56

The grid? The fridge.

Foggymist Fri 22-May-20 13:32:59

It's fine! Unless it's homemade? If it's bought ot's completely processed, one night at room temp wouldn't make a bit of difference.

Foggymist Fri 22-May-20 13:33:10


Ultrasoft Fri 22-May-20 13:33:13

I'd definitely keep it.

Calic0 Fri 22-May-20 13:33:19

If it’s shop bought mayo it probably has a fair few preservatives and what have yous stuffed in there - it’s not just egg yolks and oil. Unless it smells dodgy then I’d keep it. But I’ll admit that compared to some here on MN I am rather lax about food hygiene (late 30s and never had food poisoning though...)

fuckyouSaul Fri 22-May-20 13:33:35


Sometimes MN is so far removed from reality it's untrue

Destroyedpeople Fri 22-May-20 13:34:27

If it's shop bought keep it. If home made chuck.

ScarfLadysBag Fri 22-May-20 13:34:29

Throwing it away would be a ridiculous waste!

fuckyouSaul Fri 22-May-20 13:34:28

Where is mayo in shops?
On the shelf. For ages. My mind is truly boggled with this one

thepeopleversuswork Fri 22-May-20 13:36:18

Technically you should probably throw it away due to listeria risk but I have to say I've done this dozens of times and not once got ill.

Shop-bought mayonnaise is full of preservatives. If Its home made I wouldn't risk it.

dementedpixie Fri 22-May-20 13:38:15

Its pasteurised egg with oil and vinegar. It'll be fine

mummabubs Fri 22-May-20 13:41:56

We often forget to ours back in the fridge until the next day and never had any negative effects of that! smile

CuriousaboutSamphire Fri 22-May-20 13:43:41

Good grief!

Homemade and yes, throwing it away would make sense.

But shop bought? Stick it in the fridge and don't give it another thought!

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