In some elements of Europe, truffle hunting is a extremely regulated industry, and the gatherers must be licensed and have skilled truffle canine. ’s run by a French and Japanese couple and they have a cafe next door too. And even when you do get your hands on them, they have a very short shelf life.After just five days, the pungent truffle odor can have halved. Fresh, uncooked truffles have a really brief shelf life and must be eaten inside two to 3 days. The cheaper truffle oils have been created to imitate the smell and taste of truffles without truly containing truffles.