In consequence, it has lost over half of its aroma and flavor. Five days after harvest, half of that aroma and flavor are gone. The European black truffle, for example, has a half-life of solely about 5 days! European harvested Périgord black truffle? The spores must be from mature, healthy truffle mushrooms. Shiitake mushrooms have a delicate however meaty and chewy texture; some say they can even detect a woody flavor in these mushrooms. Though Italian chefs swear they can tell the "superior" Italian produced black truffles from all others, and the French additionally claim that French produced truffles are the perfect, in double-blind experiments finished with Michelin star chefs who use truffles day in and day out, none may really inform any difference between truffles produced in several areas, even on totally different continents. A few species in particular have such intoxicating and primal aroma and flavor that they are prized by chefs the world over.