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Home Cooking

Does Fat Go Bad?

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Home Cooking 12

Does Fat Go Bad?

Will Owen | Jan 14, 2009 10:00 AM

What's the story here? Paula Wolfert is telling me that duck or goose fat will keep "up to four months in the refrigerator". I have a 1-liter container of mixed duck fat and lard that's been in there for about two years total, during which time I've melted it, used it, re-rendered it (carefully!) and strained it back in there, each time making up any loss with lard, I think about three times. The last time was not quite a year ago. It smells just like it always did - like fat, ya know? - and except for a skim of yellowing over the top it's showing no apparent signs of age. I'm getting ready to confit two turkey thighs, and intend to use this, plus some goose fat left over from the Christmas bird and probably a little extra lard, unless I'm told that I'm courting some dreadful disease by doing so. With documented proof, of course. Having grown up with a never-cleaned-out can of bacon grease older than I was forever in the fridge, I'm frankly skeptical...

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