How Long Does Mayo Last

Both of our experts agree: Store-bought mayonnaise can be stored in the refrigerator for about two months after opening. Newman says to check for signs of spoilage, such as a strong odor or discoloration. Properly stored homemade mayonnaise will last up to 2 weeks in the refrigerator, or 1-3 months in the freezer.

Following tips like pasteurization and adding acidity regulators can extend refrigerated shelf life to 4 weeks. While its tempting to assume food past its expiration date is immediately unsafe, mayonnaise often offers a grace period. Generally speaking, commercially produced mayonnaise, when refrigerated properly and unopened, can be safely consumed for up to 3-4 months past its best by date.

In this article, well delve into the world of mayonnaise and explore how long it will last once opened, as well as provide some valuable tips on how to store it, identify spoilage, and make the most of this tasty condiment. Store-bought mayo lasts 2 to 3 months in the fridge after opening, but homemade versions should be used within 3 to 5 days. Keep mayo in the coldest part of the fridge, tightly sealed, and use clean utensils to prevent spoilage.

Toss it if you see mold, discoloration, strange texture, or smell. Learn how long mayonnaise lasts, how to store it properly, and how to tell if it's bad. Find out the difference between unopened, opened, and homemade mayo, and the risks of food poisoning and mold growth.

Mayonnaise can last past its expiration date if handled correctly. Unopened commercial mayonnaise is the most durable, often lasting several months beyond the printed date, while opened and homemade varieties require more cautious timing and refrigeration to ensure safety. Unopened mayonnaise will last at least a week beyond a "best by" date, erring on the safe side.

The shelf life of mayonnaise regardless of such things as the sell by date, use by date, or best before date is not very long. Unopened store-bought mayo lasts up to a year, while opened mayo should be refrigerated and used within 23 months. Homemade mayo, which lacks preservatives, should be refrigerated immediately and consumed within 57 days.

Signs of spoiled mayo include mold, sour smell, separation, and discoloration. While its impossible to say exactly how long your mayonnaise will remain safe, the USDA recommends that you avoid eating it after two years. After that point, the risk of contamination increases significantly.