Onions will last, when wrapped properly, up to a week. Be careful that you seal them in an airtight container, though, or your onions will get slimy and unusable AND your refrigerator will stink of onions for a very long time.
YES. Onions are actually one of the main causes of food poisoning. Don't even plan on saving your onion once you have cut it, even if you are storing it in a bag and putting it in your refrigerator- just throw it away. Onion starts quickly gathering bacteria as soon as you cut it that could be very dangerous to your body.
yes in a plastic bag it will only last up to 10 day then they will turn purple and then their bad.
Yes, any cut fruit or vegetable should be refrigerated.
Yes, gravy will go bad if not refrigerated. The pH and water activity are not low enough to make it shelf stable without a canning process.
Of course milk needs to be refrigerated because if you don't refrigerate it, it will get chunky and go bad.
As long as it stays refrigerated, it should not go bad before the expiration date. If it's left out, it should be eaten the same day. Depending on tempertaures, you could go another day, but I personally wouldn't.
yes after a while. if you want it to last longerput it in the freezer
No, unless mixed, than it needs refrigerated.
Blackberries do need to be refrigerated, or else they will go bad
All penicillin will go bad after a period of time, but it is actually better to keep liquid penicillin refrigerated. It is a good idea to check the expiration date on your penicillin, and dispose of it when it expires. Penicillin that has gone bad will not help you, and you should be careful with medications that are past their date.
Yes it can spoil with out refrigerated.
Onion is what goes bad in the potatoe salad because it attracks bacteria. If you use mayo that is home made then that can go bad but the commercial mayo has preservatives in it. If you put an onion out on the counter when someone is sick and let it there over night you will see how it attracks the bacteria.
Yes. It will become moldy if not eaten within a week or so.
Yes it does because it is spread of meat or some type of organ (such as liver). They are not pickled. They go bad quite quickly if not refrigerated. Please put it in the refrigerator if you don't wanna get sick or even die.
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