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No. Discard any moldy tomato sauce. You cannot cook it safe.
Probably not.
Once opened, tomato-based sauces are only good for five days to a week. You don't want to wait for the mold to form. It is only recommended for 5 days to be safe.
You can, but to be safe I wouldn't. Uncooked cans and broken cans can contain botulism, which will make you very sick or even kill you if untreated.
I'd say about 5 days or under because it will get molded soon. Hope this helps! :)
Once opened, tomato-based sauces are only good for five days to a week. Don't wait for the mold to form. In many cases, you won't see the mold in the sauce after five days, but it actually could be there. Some mold produce toxins that can be harmful, so why take the risk? Mold grows in very wet environments. What promotes the mold is the high moisture content. No amount of cooking will kill the toxins. So, to be safe, you need to throw it away.
There has never been any question that tomato sauce is safe for consumption and indeed has been eaten for a long time with no notable side-effects. Although extraordinarily high consumption can cause discoloration of the liver and skin, this is rare, not dangerous to your health and will recede in a few weeks of stopping eating tomato products.
That's a long time to have left tomato sauce in a pot. Whether it is safe or not depends on the type of pot and the conditions under which it was stored, as well as whether or not it grew anything in that time frame. Personally, I wouldn't risk it.
Oxidized potatoes will not harm you. It's the sprouts or the part of the potato that has turned green that could make one sick.
No. Bacteria grows quickly. Even leaving it out overnight is a questionable practice. Please tightly cover and refrigerate all leftovers. Inspect carefully prior to consumption.
Bathe in tomato soup! Stay safe!
Yes, that is safe.