In some components of Europe, truffle searching is a extremely regulated business, and the gatherers must be licensed and have trained truffle dogs. ’s run by a French and Japanese couple and they have a cafe subsequent door too. And even if you do get your arms on them, they've a really short shelf life.After just 5 days, the pungent truffle scent may have halved. Fresh, raw truffles have a very short shelf life and should be eaten within two to a few days. The cheaper truffle oils have been created to imitate the odor and style of truffles without truly containing truffles.