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I have had a container of off-brand sour-cream I bought from the grocery store in my refrigerator for almost two months. When will it go bad or will is ever go bad?

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up vote 1 down vote accepted

Eventually, yes... but it does have a fairly long shelf life.

According to Eat by date, you should expect 1 to 2 weeks after the date on the package. They say:

You can tell if sour cream has gone bad if you notice dark mold on its surface, bright bacterial marks, pockets of watery liquid and a sharp, bitter flavor. First the liquid will begin to separate, at which point it can still be used but within a week you will need to throw it out when you notice mold on the inside of the lid and then in the product.

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The one week shelf life is presumably after opening - it'll last a really long time unopened. (Maybe that's why the OP's made it two months. If opened it'd probably be horribly gross and moldy after that long.) – Jefromi Jan 31 '14 at 7:22
In my experience, you will still see some of these signs--especially the separation--even if you never open the container. I am terrible at buying this stuff to bake with and then forgetting about it.... – SAJ14SAJ Jan 31 '14 at 8:20
The good thing about dairy is that it almost never spoils in a stealthy way. If it looks and smells all right, it almost certainly is. – Satanicpuppy Jan 31 '14 at 17:23

Yes. Foods are specially designed for sale. Soured cream has been artificially soured for sale. After that is just goes off. It is like blue cheese, the 'blue' is artificially injected into the cheese. You could personally scrape off the mould but it is not the sort of thing you can/should serve to someone else.

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yes it does...i just had to throw mine out that was 5 weeks old.

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