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I have had unsalted butter in the fridge for a while and used it from time to time. Now I realize that's it's been there for many, many months. It tastes fine but is it safe to keep it longer than a month?

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  • Thank you. I just wondered if they are overcautious because it tastes fine and I was eating it till recently.
    – Padma
    Sep 3, 2014 at 0:42
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    I think they are overly cautious, yes, since they would want to err on the side of caution. Personally, if the butter looks and tastes okay then I would eat it without hesitation almost no matter how long it had been in the fridge. Sep 3, 2014 at 0:44

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Oxidation can make the fat in the butter rancid. You would taste and smell that, so it's probably safe. Refrigeration and darkness slow the process of oxidation.

I freeze butter and take it out of the freezer a stick at a time. Butter appears to last approximately forever if frozen.

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  • I've not seen butter sticks at supermarkets in the UK like they do in the US.
    – J86
    Sep 3, 2014 at 10:14

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