So as a person who’s been in that back area of a restaurant, we all know the danger zone is anything above 40F to 140F and the closer you are to that median temperature that median temperature the faster that bacteria multiplies, meat, vegetables, doesn’t matter, as long as the temperature’s right and there’s enough moisture there, they’ll breed like bacteria and there are bacteria that leaves toxins behind that will also make you sick.

So given that, I’ve always put stuff into the fridge as soon as were done eating generally following the two hour rule and it’s been sitting out for more than four hours without refrigeration, I’ll usually toss it.

We lean towards vegetarian, minimum meat consumption for both health and environmental reasons.

As far as leaving food out…only foods that don’t require refrigeration. Bread, snacks, etc. Anything cooked that is still hot will be allowed to cool before going into the fridge, no need to make the fridge work harder, but it doesn’t stay out long enough to be a food safety problem.

Uncooked foods that are dangers to bacteria growth like meats and the like don’t sit out ever or are carefully thawed. Eggs? They’re fine out of the fridge, just crack them individually into a small bowl to make sure they’re good before use. I think I’ve only ever had one bad egg left out and it was pretty obvious, they just last a lot longer if refrigerated. Greens and other veg just wilt and dehydrate if not used quickly unless refrigerated, but leaving them out isn’t an issue. They get washed before use.

Anyway…I do most all the cooking and take food safety seriously. I’ve had one serious bout of food poisoning from a restaurant and that made death seem like a viable option vs the misery of constantly evacuating everything in your body for a few days, and the memory stuck with me. You can cook great food that’s been prepared to the correct and safe temperature, and I have little issue with foods that have been cooked like this, left out to cool and refrigerated, then reheated to a proper temperature.

Also… thinking rice or pastas are fine left out because no animal proteins, think again.

Canadian living in Australia. Omnivore.

Kicker: Food technologist and health inspector. AMA.

Tl;dr: Doesn’t matter if it’s meat or veg. It goes in the fridge. Follow 2h/4h rule. Edit: Should specify certain veg are potentially hazardous as soon as you cut in to them, like leafy greens. All cooked or partially veg that should be treated like meat.

For work, I’m fairly strict in businesses because the food can go anywhere once it’s in the hands on the customer, even in restaurants or at home. You can look at your dine in customers and they all look healthy, but what if they’re not, or where do the leftovers go? Do they take it home after date night to share some with little Bobby or Grandma Jane? In business, you do what you can to keep the food as “clean” as you can.

At home and in food businesses, handwashing is ALWAYS a problem. Food handlers are always touching their faces, phones, hip towel they’ve had on all day, touching a towel they use used to wipe their hands after only rinsing hands in water in the sink, and then touching lettuce for a salad. So even at home, you can cook things to keep bacteria, but is the scoop, container, and your hands clean? Dust, pollen, flies, hairs, etc also carry microbes, and if any of them fall in to food after its been cooked, the bacteria can grow.

It also depends on the type of bacteria, too. Salmonella can infect at an extremely low dose, and Staphylococcus infects at very high doses.

I follow the 2h/4h rule for anything potentially hazardous. Of course, at home, I’m a bit more flexible, usually +/- 1h. If I make myself sick, alright, but there’s no way I’m going to make anyone else sick, so if I’m making food for others, I keep to the strict rules. I’m also generally more risk adverse because the thought of anything involuntary coming out either end makes me sick just thinking about it.

I think the amount of time a food stays out is cultural, and if you grew up with it, your gut will have gotten used to the levels of bacteria. Us westerners generally get sick drinking tap water in certain countries when the locals are fine. I used to live with a Japanese lady for a year, and she knew what I did for a living. She always left rice out all night and ate it the next day. One day, she came to me with it and said “does this smell weird?” and it was a definite yes from me. I’d never leave cooked rice out that long and feel comfortable eating it.

So yeah, Bacillus cereus or whatever bacteria present may not occur all the time, but it does happen. Imagine making large batches and serving to large numbers of unrelated people.

Another thing: Cool foods within 2h to a reasonable temperature (I say 40C is fine) before putting it in the the fridge uncovered. If you put hot food in the fridge, you run the risk of warming up the foods already in the fridge.

Wash your hands.

And use a thermometer. Make sure it’s clean before you use it.

Thanks for listening to my Ted Talk.

I keep my lunch in my work bag all day, not in the fridge, unless it’s salad where it should be crisp.

I did the European thing where I kept eggs on the counter. It’s best that way. Real unwashed farm eggs, not shit from the grocery store.

Ants are everywhere in south east asia so I’d never or build a little tower with a water bowl underneath it.

Anecdotal evidence rules! Everyone posting here is alive!
The estimated 420,000 folks who die annually from improper food and water handling refuse to post!!!
Great stuff!

It would bother me at a restaurant or store, since that is proper, legal food safety shit. If it needs to be kept cold, it can’t be out of cold for more than 30 minutes.

However, at home? I don’t care too much. Unless it’s been out all day, I’ll just nuke it and that should kill anything.

Another factor that hasn’t been mentioned: I’m young and healthy, I don’t want to have salmonella, but I’m pretty sure I’d probably be okay. If I am sick or cooking for people who have weak immune systems for whatever reasons, I do much stricter than for my lazy bachelor self.

Otherwise, I live by “if it smells and looks good, it’s probably good”. Obvious conditions apply of course, in hot, humid weather, I’m trying to leave nothing out, in cold weather, I’ll happily eat cold pizza from the day before.

90% Vegetarian. Chicken and Fish meat only. Canada.

I used to be a chef so I follow food safety guidelines with some wiggle room, since commerical kitchen standards are supposed to protect all kinds of people in a wide variety of circumstances, while I’m fairly healthy and in control of my kitchen/storage.

I don’t let food that’s supposed to be hot sit at room temperature for more than 2hrs max. I keep most starchy fruit and root veggies in loose, hanging bags and berries/greens/less starchy vegetables in the fridge. I usually only buy meat if I’m using it that day, only keep leftovers in the fridge for two-to-three days, and freeze anything else.

Super basic explanation: Bacteria are on anything not sterile or on fire. Most are harmless on their own but some produce shit that makes you sick. Like botulism is caused by the toxin the bacteria produce and not the bacteria itself, and it’s found on vegetables. The bacteria (if they’re not endospores) die with heat but the toxin remains. And with food production all mingled, bacteria from meats can be transferred to non-meat products, too. You can even get sick from raw flour.

Cooked foods have more available sugars and nutrients for bacteria to eat, plus warmth and moisture, so it’s a great environment for bacteria to break out of hibernation, make babies and poop toxins.

Leaving cooked starchy foods out in ideal bacteria party conditions isn’t great, and food poisoning isn’t always throwing up and shitting your guts out. Sometimes it’s a slight headache or a sore throat, and it can happen days or months after the fact. Ever had a 24 flu? Unexplained weird anxiety and a tummy ache that goes away after a day? Food poisoning happens to about 1/10 people worldwide every year.

But whatever, it’s about how much risk you want to take on.

This is a thing pushed by American media. It’s a Boomer-era panic over summertime picnics and somehow mayonnaise causing potato salad to immediately after 30 minutes outside a refrigerator to become fatal if consumed.

It’s also the product of misunderstandings of buying meat at a supermarket, wrongly assuming that meat that is not refrigerated for more than 15 minutes will basically kill you.

Panicking about food poisoning is a moral panic about “bad parenting” and blaming people when it wasn’t widely known what causes food poisoning: not washing your filthy hands, cross-contaimination, and poor hygiene overall.

I’ve lived in West Africa and bought and cooked and safely eaten meat that had sat on a wooden plank lightly covered in flies before I got there to buy it. I survived. Mayonnaise will outlive humanity before it molds or goes bad at room temp.

US. Omnivore.

The food safety recommendations and regulations for commercial Kitchens are there for a reason. That being said, a home setting is very different than a commercial setting.

1. The potential for impact is much greater in a commercial environment due to the volume of food and customers served.

2. Believe it or not, a home setting is more controlled than a commercial setting: There are (generally) fewer food handlers, service personnel and “customers” touching or breathing on the food/dishes/equipment. And whether any of those individuals pose a disease vector risk is fairly well understood within the household, which can be mitigated on a more granular level. Because you are only serving one table instead of many at different stages of readiness, there is smaller variety of foods in preparation at once, fewer steps in the prep process happening simultaneously, and dirty dishes are only handled after the food has been prepared and eaten, reducing the risk of cross contamination. There are so many vectors for contamination in a commercial setting that the controls are in place to stop little issues from turning in big problems.

All this is to say that I am generally okay leaving finished foods out on my counter for extended periods of time if it has been freshly and properly prepared, or I plan on finishing or pitching it that day.

However, your examples baffle me. Leaving pasta out all day just seams like an unpleasant eating experience, indifferent of the health implications. Soup and lasagna? I can’t imagine wanting either of those early enough in the morning to prepare them so that I could leave them out “all day”. If I’m grabbing leftovers from the fridge, I wouldn’t leave it out. It’s already got a container and a space on the shelf; I just put the rest back where it came from after I take my serving. Sitting on the counter isn’t going to improve it.

Vegetables of course live their entire pre-picked lives without refrigeration and are generally fine on the counter when fresh. I would refrigerate prepared fresh vegetables if I knew I wasn’t going to finish them or they were particularly moist, like cut tomatoes or a dressed salad, or known to turn quickly like avacado.

I leave food on the counter all the time, because If I’m still hungry in a little while, I don’t want my food cold. I have never in my life gotten food poisoning from it.

Meat eater from the UK. I’ll leave stuff out for varying amounts of time, just smell it before I eat it or have a trial spoon first.

Never had any food poisoning in my life and I have eaten some very questionable things for sure.

In my personal opinion people wildly over exaggerate stuff like this and dates on packaging. My nose knows.

Vegetarian/Germany. I’ll leave food on the counter too as long as I’m still planning to eat it the same day. Never had issues. If I’m planning to only eat it the next day, I’ll refrigerate it.

Ive left excess pasta on the stove overnight, I’ve left pizza open on the counter and eaten it the day after (though if there’s only a couple slices they stay in the microwave on a cutout of the box ready to be nuked in the morning/next days lunch)

Still alive, still haven’t given myself food poisoning