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They can feel like life’s greatest mysteries: Is that chicken breast at the bottom of the freezer still safe to eat? Or is that mustard jar in the back of the cupboard still any good? We’ve de-mystified the process with this handy chart, which incorporates advice from the USDA, food scientists, and food manufacturers. (Scroll down for downloadable, kitchen-ready versions.)


Download and print out your own versions to stick up in the kitchen:

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