In fact I bought 100 ml bottles of olive oil, and still had to pull it out of my ziploc liquids bag for sperate inspection. Not sure why, but they insisted.
This was in Athens where they expect to see olive oil and in fact ask whether you have any with you. I saw larger bottles disallowed, to much consternation.
Of course, entering the US with GE, I answered the food question affirmatively, which sent me to secondary. Where the inspector asked if I had any meat or fresh veggies or fruit, which I didn't, and waved me on by.