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FOOD STORAGE — HOW LONG CAN YOU KEEP...

MAYONNAISE, COMMERCIALLY BOTTLED — OPENED

RefrigeratorRefrigerator
Blue Arrow Blue Arrow 2-3 months after date on package
Tips
  • The precise answer to the question “How long does mayonnaise last once opened?” depends to a large extent on storage conditions — keep opened mayonnaise refrigerated and tightly covered at all times.
  • How long does mayonnaise last after the Use By or Best By date? An opened jar of mayonnaise that has been continuously refrigerated will usually keep for 2 to 3 months after the "use by" or “best by” date on the package.
  • Storage time shown is for best quality only — after that, the mayonnaise's texture, color or flavor may change, but in most cases, it will still be safe to consume if it has been kept continuously refrigerated.
  • "Best By," "Best if Used By," and "Use By" dates on commercially packaged foods sold in the United States represent the manufacturer's estimate of how long the product will remain at peak quality — in most cases, the opened mayonnaise will still be safe to consume after that date, as long as it has been stored properly and kept continuously refrigerated after opening.
  • How can you tell if mayonnaise has gone bad? If mayonnaise develops an off odor, flavor or appearance, it should be discarded for quality purposes; if mold appears, discard the entire product.

Sources: For details about data sources used for food storage information, please click here.

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