Does Olive Oil Go Bad?

Most olive oils can last 18–24 months from the time they're bottled, while extra virgin olive oils may last a bit less — around 12–18 months. Beyond this time, it will go rancid. ... You'll know your olive oil has gone rancid by giving it a taste. It may taste bitter or sour and smell a bit like crayons or putty.

How do you know if olive oil is bad?

Rancid olive oil tends to smell like wax or putty. Degraded olive oil tastes heavy, musty, and metallic. Fresh extra virgin olive oil should taste lively, slightly bitter, with a hint of grassy flavor and a peppery burn at the back of the throat.

How long can you keep olive oil after expiration date?

Unopened and stored in the proper conditions, olive oil will last about one-and-a-half to two years past the bottling date, so check your bottle for the "harvest date" and calculate the amount of time you have to consume or toss that oil. California Olive Ranch recommends using an opened bottle of olive oil within 30 ...