September 18, 2017
Olives last for 1-2 years beyond a "best by" date if unopened. Of course, olives last for a shorter period of time if they are not stored properly.
September 4, 2017
When you buy olives from an olive bar, one way to store them safely is to place them in a glass container and cover them with olive oil. You can then store the covered glass container in a cool place.