In Focus:

How long can you eat those leftovers?

Deep in the recesses of most people's refrigerators lives a half-eaten bottle of salsa, some takeout Chinese food and last week's chicken dinner. Pulling one of those things out, you wonder: Can I eat it? Is it safe? A lot of commercially prepared items, such as sauces and condiments, have best-buy dates on the packaging to ensure flavor, not safety, according to the U.S. Department of Agriculture.

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