How long does French's Mustard last after opening?

French's Mustard typically maintains its best quality for about one year after opening when stored properly. It is important to keep it in a cool, dry place and to ensure the cap is tightly sealed after each use. While the mustard may remain safe to consume beyond the one-year mark, its flavor and freshness may begin to diminish over time. For optimal enjoyment, it is advisable to check for any changes in color, texture, or smell. If any unusual signs are present, it is best to err on the side of caution and discard the mustard. As a reference, it is always beneficial to look on the official French's website for any specific information regarding storage and shelf life. This ensures that consumers have accurate and up-to-date details regarding their favorite mustard.