I can't see the Italians doing this - if a restaurant owner wants to use his grandad's olive oil I expect he will continue to do so.
I bought a wonderful olive oil in Lidl a couple of years ago. I can't remember which region of Italy it came from, but it smelled and tasted like new mown grass - lovely! Naturally they've never had it again.
Cookery books and other books - are you keeping them ?
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