Most olive oil starts to spoil around 12 months after the olives are harvested. At 18 months, the oil is usually unusable as food (you can still use it to treat wood, though).  The trouble is, most olive oil has an expiry date based on when the oil was bottled, not when the olives were harvested.  Thankfully, because Bona Furtuna bottles all its EVOO within 24 hours of harvesting the olives, you know exactly what the expiry date, and harvest date, actually mean.  And, chances are, with Bona Furtuna oil this delicious, you won’t even come close to having any EVOO left in the bottle by the expiration date!