Eating things with mayonaise at Burning Man

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Zhust
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Eating things with mayonaise at Burning Man

Post by Zhust » Sun Mar 24, 2013 10:25 am

I am camping with a group and I want to make a regional favorite (Simon already knows) that includes mayonaise. How safe is commercial mayonaise (e.g. Hellmans) in the short term? Since it's sold non-refrigerated, it's [as] safe [as it is] until you open it, but at some point in hot weather, it's a cesspool for dangerous bacteria. How long can it be left out/served?

I wish I could pre-delete all responses that start, "I don't have any expertise but ...", "I haven't tried it but ...", "I once heard on the TV news ..."

I'd prefer the response, "I work in the food safety industry and the standard is X hours if kept below Y degrees, or Z hours if left unrefrigerated."

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Re: Eating things with mayonaise at Burning Man

Post by knowmad » Sun Mar 24, 2013 10:32 am

Make Vanilla pudding. Put in Mayo jar. Eat in public.
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Re: Eating things with mayonaise at Burning Man

Post by BBadger » Sun Mar 24, 2013 10:42 am

Commercial mayo is perfectly safe if left unrefrigerated. It may reduce quality, but mayo isn't bacteria friendly.

Just to be safe, try to avoid cross-contaminating from sources of bacteria. Still, given the study above, it probably won't matter anyway. All bets are off if you mix mayo with other stuff (e.g. salads, sandwiches); so keep it separate until you want to eat it.

As for other jarred foods that do spoil when opened, I discovered a secret: put a layer of oil (like olive oil) on top of it to prevent bacteria from having a place to set up kit. More specifically in my case, Ragu's Pizza Quick Sauce will last only about a week, even with refrigeration and trying to avoid cross-contaminating by not sharing spooning utensils. Still, it was all to no avail! However, with a layer of lipids above it, I've jars last over a month or two without mold growing on top (still refrigerated).
Last edited by BBadger on Sun Mar 24, 2013 10:49 am, edited 1 time in total.
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Re: Eating things with mayonaise at Burning Man

Post by MacGlenver » Sun Mar 24, 2013 10:43 am

Ok, the ASM article wins, but here's an AT forum that also indicates that it isnt a conern (search for "mayo"). You might consider using fast-food packets (MOOPy) or squeeze bottles to minimize cross contamination.
http://www.whiteblaze.net/forum/archive ... 28467.html
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Re: Eating things with mayonaise at Burning Man

Post by trilobyte » Sun Mar 24, 2013 11:11 am

We've done commercial mayo via squeeze-top containers, and kept it in the cooler. We've also done them via the little one-off condiment packets without refrigeration. The trash factor is negligible. It's what, a one inch by two inch flat packet? Even if you go through 50 of them it's not like it's going to change the number of bags of trash you haul home with you. I kind of like using the condiment packets - a couple restaurants we get takeaway or order delivery from always throw in a bunch of condiments whether we ask for them or not, I like being able to put them to good use.

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Re: Eating things with mayonaise at Burning Man

Post by knowmad » Sun Mar 24, 2013 11:45 am

trilobyte wrote:We've done commercial mayo via squeeze-top containers, and kept it in the cooler. We've also done them via the little one-off condiment packets without refrigeration. The trash factor is negligible. It's what, a one inch by two inch flat packet? Even if you go through 50 of them it's not like it's going to change the number of bags of trash you haul home with you. I kind of like using the condiment packets - a couple restaurants we get takeaway or order delivery from always throw in a bunch of condiments whether we ask for them or not, I like being able to put them to good use.
I agree to some extent. the thing about the moop prolly isn't the amount, It's the opportunity to moop. 50xgetting the packet in the trash. plus 50x of tracking that little strip everyone bites off (and Spits out) = 100x more of a chance to screw up. factor in carelessness and the Playa youve upped the chances of mooping.
I'm not saying you are doing it wrong. I'm saying less packaging on the playa is better for the playa.
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Re: Eating things with mayonaise at Burning Man

Post by Elorrum » Sun Mar 24, 2013 11:52 am

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Re: Eating things with mayonaise at Burning Man

Post by Captain Goddammit » Sun Mar 24, 2013 11:58 am

knowmad wrote:Make Vanilla pudding. Put in Mayo jar. Eat in public.
Awesome idea.
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Re: Eating things with mayonaise at Burning Man

Post by Lowz » Sun Mar 24, 2013 12:12 pm

So you're all working in the " food safety industry"?
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Re: Eating things with mayonaise at Burning Man

Post by BurnerBunny » Sun Mar 24, 2013 12:48 pm

My partner is a licensed food inspector in Ca, has an MPH, and other non-related titles (MD, DVM, PHD). Long story short he's had an interesting career, and this year is his first burn.

I asked him your question and he said: Once you mix the mayo with something (salad, sandwich, whatever) the refrigerated temperature to store safely is around 40 degrees F (he was too lazy to go look it up, but said 40 is close enough). Once mixed and left out but not refrigerated it's ok for 1 or 2 hours depending on how hot it is, what kinds of things it's mixed with, and several other factors so the number can't be precise without much more info.

He also mentioned that there are several no-refrig mayos out for that past few years that you can use, but food safety still applies to everything else in your recipe.

Me again: keep in mind this is just what is considered safe, you can go longer or refrigerate at higher temperatures with the understanding that it's riskier, but not necessarily deadly imo.

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Re: Eating things with mayonaise at Burning Man

Post by Zhust » Sun Mar 24, 2013 12:58 pm

Wow crazy. Thanks everyone. It seems mayo is so safe, I should put it on open wounds. I'll probably bring a printed copy of that Applied Environmental Microbiology report for those who insist what jeir grandmother advised still applies.
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Re: Eating things with mayonaise at Burning Man

Post by knowmad » Sun Mar 24, 2013 1:33 pm

Zhust wrote:Wow crazy. Thanks everyone. It seems mayo is so safe, I should put it on open wounds. I'll probably bring a printed copy of that Applied Environmental Microbiology report for those who insist what jeir grandmother advised still applies.
no just serve them the fat free crap. lol
but seriously have you tried the Olive oil based mayos? zofuginggood!
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Re: Eating things with mayonaise at Burning Man

Post by AntiM » Thu Mar 28, 2013 6:13 am

Turn the jar upside down. I don't know why that keeps it "fresher" but it does. Works with jam too.

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Re: Eating things with mayonaise at Burning Man

Post by lemur » Thu Mar 28, 2013 6:37 am

lol.
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