Should Mayonnaise Be Refrigerated After Opening? The Storage Rule Many People Get Wrong

separate. After thawing, it may become:

Grainy
Watery
Curdled
Difficult to remix
It may not necessarily become unsafe solely because it froze, but its texture and appearance are usually significantly damaged.

What About Mayonnaise Packets?
Unopened single-serving mayonnaise packets are usually designed to remain shelf-stable until opened.

They are commonly used in:

Restaurants
Takeout meals
Lunch boxes
Cafeterias
Store them in a cool, dry place and discard packets that are swollen, leaking, damaged, or unusually warm for extended periods.

Once a packet is opened, use it immediately and discard any

.