In some components of Europe, truffle looking is a extremely regulated trade, and the gatherers have to be licensed and have trained truffle dogs. ’s run by a French and Japanese couple and they've a cafe next door too. And even when you do get your fingers on them, they've a really short shelf life.After simply 5 days, the pungent truffle scent could have halved. Fresh, uncooked truffles have a very quick shelf life and have to be eaten within two to a few days. The cheaper truffle oils have been created to imitate the odor and style of truffles with out truly containing truffles.