In some components of Europe, truffle hunting is a extremely regulated trade, and the gatherers need 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 when you do get your hands on them, they have a really short shelf life.After simply five days, the pungent truffle odor could have halved. Fresh, uncooked truffles have a really quick shelf life and should be eaten inside two to 3 days. The cheaper truffle oils have been created to mimic the odor and taste of truffles with out really containing truffles.