[melissamiranda]

This is true and well documented on the website Truth in Olive Oil, run by Tom Mueller who also wrote a well respected book debunking olive oil production.

There's a great guide to buy olive oil on the site here: http://www.truthinoliveoil.com/great-oil/how-to-buy-great-ol...

Sigona's Market at Stanford Shopping Center in Palo Alto, CA has an olive oil bar. They offer the best, pure varieties harvested from different regions around the world including California. California oils are harvested and pressed in the fall, so I think they become available in spring-summer. In the fall and winter you can get southern hemisphere oils that are fresher. Sigona's keeps the olive oil in barrels and only bottles at the last minute so it's as fresh as possible.

The Olive Press at Jacuzzi Vineyards in Sonoma is the one place I know that is pressing their own oil and you can bottle it right when it's freshest. http://www.jacuzziwines.com/theolivepress

I got these two places from the Truth in Olive Oil, so for others in US you should be able to check on the site to see what places near you have high quality olive oil.