The typical shelf life of unopened olive oil ranges from 18 to 24 months from the bottling date, provided it is stored properly in a cool, dark environment away from direct heat and sunlight. Once an olive oil bottle is opened, its quality begins to degrade due to oxidation, and it is best consumed within 2 to 3 months to maintain optimal flavor profiles, freshness, and nutritional integrity. Storing the oil in dark glass containers and sealing the cap tightly helps prevent rancidity and extends its usable lifespan significantly.