You can freeze mayonnaise but it's not recommended.
When you freeze mayonnaise, it will look normal while still in frozen form.
But as mayonnaise thaws, that emulsion will break, leaving you with the liquid, acidic ingredients and oil floating on top of the yolk base.
While it won't kill you, melted mayonnaise certainly won't behave the same spread on a sandwich.
Mayo does not need to be refrigerated.
If the mayo is commercially made it requires no refrigeration and can be safely left at room temperature.
Although it's recommended to put opened jars of mayo in the fridge but it's not really required.
Commercially produced mayonnaise, as opposed to the homemade version, does not need to be refrigerated, according to the report.
Food scientists find it's because mayo undergoes strict testing and "its acidic nature slows the growth of the bacteria associated with food-borne illnesses,'' according to NPD Group.