Truffle (Truffle) grows under pine, oak, and oak trees, and is a general term for a type of mushroom. Truffle's main producing areas in France and Italy, black truffle's origin is mainly in France, Italy's white truffle is famous all over the world. Truffle edible odor special, rich in protein, amino acids and other nutrients, and can not be artificially cultivated, production is rare, so the Europeans will be truffles and caviar, foie gras and listed as "the world's three delicacies.