[latable]

Wrong about olive oil that never need hexane extraction. Hexane is used to do a second extraction of the residues from the first extraction, to increase the yield. Of course it is somewhat poisonous. It is done for most cheap olive oil ! When buying olive oil, you have to make sure it is extracted mechanically and not chemically, in France at least it is written as such.

[arthopacini]

I've never encountered chemically extracted olive oil, thanks god! I didn't knew they used it. it makes sense, just to increase the yield..

I've only seen mechanically extracted extra virgem olive oil.

I've seen some mixtures of like 80% vegetable oils with 20% natural extra virgin olive oil..