How Long Will The Flavor Of An Open Jar of Mayo Last
NEWS
By HILARY WHEELAN REMLEY
While the emulsified blend of egg yolks, oil, and vinegar or lemon juice is known for its long shelf life, several factors impact how long your mayo will stay fresh and delicious.
An unopened jar of store-bought mayo can last for three months at room temperature and may maintain quality for several months to a year when stored in a cool place or refrigerated.
Once opened, store-bought mayo lasts about two months in the fridge, and will only maintain its flavor for this time. Homemade mayo can retain its flavor for one week in the fridge.
Along with making sure you’re eating store-bought mayo within a two-month timeframe after opening, it’s also important to not consume it past the mentioned “best by” date.
Furthermore, whether your mayo is store-bought or homemade, if it becomes lumpy, smells off, shows signs of mold, or has changed colors, it’s best to discard the jar.