Truffles are found in hollow areas, at the roots of oak trees, 5 to 20 cm. a fragrant ectomycorrhagic mantle that grows in the depths of the earth
45 percent of the world is in France, 35 percent in Spain and 20 percent in Italy. The most valuable of these are the Black Truffles, also known as black diamonds. One of the most important and valuable elements of Italian cuisine is a variety of mushrooms that are very difficult to cultivate.