Apparently MOST of the supposedly 100% olive oil out there is actually diluted with vegetable oils. It's apparently quite difficult to detect this.
Yeah I asked one of my friends from Italy how best to tell and the first thing she pointed to was the price. The other one is that there is a seal that Italy has started to put on the 100% bottles that help certify it. Clear bottles are also a huge flag it needs to be in green ones and to check your olive oil you can put it in the fridge and regular olive oil will solidify while cut stuff will not!
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