I left store bought mayo out overnight. Is it still safe to use? The bottle didn't mention whether or not it needed to be refrigerated. - Quora
Why do we have to refrigerate mayonnaise that we buy from the store but the ones that are in packets at fast food restaurants are not refrigerated? - Quora
![How can a Hellman's Mayonnaise squeeze bottle sit unrefrigerated on a restaurant table without going bad? - Quora How can a Hellman's Mayonnaise squeeze bottle sit unrefrigerated on a restaurant table without going bad? - Quora](https://foodhow.com/wp-content/uploads/2020/06/mayonnaise-storage-guide.jpg)