Mayonnaise is a thick, creamy sauce made from oil, vinegar or lemon juice, and egg yolks. It is used as a condiment or dressing in a variety of dishes, such as sandwiches, salads, and potato chips. However, mayonnaise can go bad if it is not stored properly.
There are a few ways to tell if mayonnaise is bad. First, look at the color. Fresh mayonnaise should be white or pale yellow. If the mayonnaise has turned brown or green, it is likely spoiled. Second, smell the mayonnaise. Fresh mayonnaise should have a slightly tangy smell. If the mayonnaise smells sour or rancid, it is likely spoiled. Third, taste the mayonnaise. Fresh mayonnaise should have a smooth, creamy texture. If the mayonnaise is grainy or watery, it is likely spoiled.