In some components of Europe, truffle looking is a highly regulated industry, and the gatherers have to be licensed and have trained truffle canine. ’s run by a French and Japanese couple and they've a cafe next door too. And even while you do get your fingers on them, they have a really brief shelf life.After simply 5 days, the pungent truffle smell could have halved. Fresh, raw truffles have a very short shelf life and must be eaten within two to a few days. The cheaper truffle oils have been created to mimic the smell and style of truffles with out actually containing truffles.