You’re missing the point - that the truffle flavour is derived from petroleum. It’s not about the oil component, which as you say is a normal food oil. The ide

You’re missing the point - that the truffle flavour is derived from petroleum. It’s not about the oil component, which as you say is a normal food oil. The idea is: fake truffle oil is some olive/rapeseed oil with a bit of 2,4-dithiapentane added to it. I don’t know to what extent this flavouring is actually petroleum-derived, but the point is that it’s not actual truffle.