It is safe to consume mayonnaise can after the expiry date, but you will notice a change in the quality. Retail-packaged foods may be labelled with either a "best before" date . That depends. I have stored these in the ref till I needed to use them. If something doesn't pass all of the above tests, you may wish to discard it. The prior bottle sizes were 9 oz, 16.5 oz and 22oz.Note: You'll find a detail of products and sizes below."It's an eye-catching look that helps differentiate the Hellmann's family from other products on shelf," offers Schomberg.Also integrated into the closure inside the clean-lock cap is Aptar's SimpliSqueeze valve, which provides . An unopened jar of mayonnaise is shelf-stable for 3-4 months after its best by date. Not an expiration date. 4 days. We use them on the Sailboat and in the RV. The cookie is used to store the user consent for the cookies in the category "Analytics". Salmon Oven Temp (What Temperature to Cook Salmon in Oven). Instead, take a little bit and taste it. Properly stored an unopened package of mayonnaise will generally stay at best quality for about 3 to 4 months after the date on the package. margin: 0; The numbers are stamped on and can sometimes be hard to read or find depending on where they were placed. We use them on the Sailboat and in the RV. jar. Mayonnaise that has been continuously refrigerated will generally stay at best quality for about 2 to 3 months after the "Best By" date on the package. I have stored these in the ref till I needed to use them. margin: 0 .07em !important; Copyright 2023 StillTasty LLC. But remember that mayonnaise, like a lot of other condiments, usually has a best by date and not a use by date or expiration date. The date stamped on the label is the date that assures the product's optimum and consistent quality. 2 Open the container and smell the mayonnaise. Answer (1 of 13): Contrary to popular misconception, commercial mayonnaise, in the jar, is among the safest of foods. (b=d([55356,56826,55356,56819],[55356,56826,8203,55356,56819]))&&(b=d([55356,57332,56128,56423,56128,56418,56128,56421,56128,56430,56128,56423,56128,56447],[55356,57332,8203,56128,56423,8203,56128,56418,8203,56128,56421,8203,56128,56430,8203,56128,56423,8203,56128,56447]),!b);case"emoji":return b=d([55357,56424,55356,57342,8205,55358,56605,8205,55357,56424,55356,57340],[55357,56424,55356,57342,8203,55358,56605,8203,55357,56424,55356,57340]),!b}return!1}function f(a){var c=b.createElement("script");c.src=a,c.defer=c.type="text/javascript",b.getElementsByTagName("head")[0].appendChild(c)}var g,h,i,j,k=b.createElement("canvas"),l=k.getContext&&k.getContext("2d");for(j=Array("flag","emoji"),c.supports={everything:!0,everythingExceptFlag:!0},i=0;i