2 days, 3 if you're starving.
Two or three days, not counting the day you bought it.
Homemade mayo typically lasts for about 1 week when stored in the refrigerator.
3 weeks if refrigerated, 2 weeks if not. :D
Mayo last appeared in the All-Ireland Football Final in 2013, when they were beaten by Dublin. They last won in 1951.
Bought readymade, the best-before-date will be on the container. Made at home, the best-before-date of the mayo will be on the jar. If the dip has been kept refrigerated, then those dates will apply. Otherwise, I would be wary of any dip which was more than a few hours out of a fridge.
Due to the contents of Mayo (mostly the creams and raw eggs), it is hazardous to keep mayo if the jar has gone warm for longer then an hour.
Homemade mayonnaise typically lasts for about 1 to 2 weeks when stored in the refrigerator.
Ham dip made with cream cheese and mayo can typically last in the refrigerator for about 3 to 5 days if stored in an airtight container. It's important to check for any signs of spoilage, such as off odors or changes in texture, before consuming. Always ensure that the dip is kept at a consistent refrigerator temperature of 40°F (4°C) or below to maintain its freshness. If in doubt, it's best to err on the side of caution and discard it.
Homemade mayonnaise typically lasts for about 1 to 2 weeks in the refrigerator before it spoils.
mayo is made several different ways, so look on the jar to see best used by date. because some mayo has eggs in it , and of course organic won't last very long. because most are made with vinegar so mayo will last a very long time.
Unopened it will last on the self for a year or more. But once it is opened, it will last a couple of months in the fridge. If you've opened the container or used mayo on a sandwich or in a salad, it shouldn't be left unrefrigerated for more than a couple of hours.
look at the expiration date, if its in the jar in the fridge it should last about 2-3 months. if its on a sandwich it should last a few hours, depending on how cool it is. In my opinion mayo can not go bad in 3 to 4 months because of the vinegar that preserves it