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A comment on There Are No Truffles in Truffle Oil (2014). Parent comment

Re:There Are No Truffles in Truffle Oil (2014) by mack73 on Friday September 09, 2016 @08:59AM (#12461707)
Extra means the oil contains no more than 0.8% of free oleic acid.

Virgin means the oil comes from a mechanical process, not a chemical one.

The purest grade extra virgin olive oil is the first cold pressed. It's neither filtered nor distilled. Refined olive oil however is filtered and also tasteless.

https://en.wikipedia.org/wiki/Olive_oil#Commercial_grades

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Re:There Are No Truffles in Truffle Oil (2014) by NLips on Friday September 09, 2016 @09:10AM (#12461789)
From the same page: "The refining process removes colour, odour and flavour from the olive oil, and leaves behind a very pure form of olive oil that is tasteless, colourless and odourless and extremely low in free fatty acids"

I don't mean 'pure' in a good sense, just that it is a simple mixture.

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