How long does olive oil last?
Olive oil is a natural product that will lose its flavor and aromas over time; and heat and light are its two biggest enemies. When stored properly (unopened in a cool, dark place) it can maintain its freshness for up to 2 years or more depending on the variety. It’s generally accepted that opened bottles of olive oil should be used within a few months of opening, unless stored properly.
Varieties with a higher polyphenol count (such as Picual, Coratina and Koroneiki), maintain flavors and aromas for a longer period of time than those with a lower polyphenol count (such as Arbequina or Royal).
How should olive oils be stored?
Even opened extra virgin olive oils can last as long as unopened olive oils when properly stored. Pantries make the best place to store them, and keeping them next to stoves and other appliances should be avoided.
How do I know when olive oil is bad?
When the olive is has lost its flavor, tastes flat, or even smells/taste rancid.
What size bottle should I buy
If you’re an olive oil pro, you probably buy the big bottle. If you’re looking to just give a new flavor a try, by all means, purchase the smaller bottle. Keep in mind – the more you learn about olive oil the more uses you’ll get out of it, and the quicker your bottles will empty!