How Long Does Pickle Relish Last?

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Pickle relish stays fresh in the refrigerator for up to one year. The relish should be refrigerated after it is opened to ensure it stays fresh.

If the relish changes in color or odor, it should be discarded immediately. Pickle relish is a significant source of iron and contains dietary fiber and vitamin C. One serving of the relish contains 91 calories and 1,091 milligrams of sodium. There is ½ gram of fat in a serving of pickle relish. The relish is often used as a topping for hot dogs. In addition to cucumbers, pickle relish can include jalapeños, red peppers and onions.