Buying Your Truffles And Truffle Products Truffles are considered rare and a delicacy in some countries, thus its high price. Most of the truffles are from Europe, although countries like the United States, Australia and New Zealand are already venturing into commercial reproduction. Not all varieties are the same. The Oregon truffle is less expensive than other truffle types, as it usually costs about $150 per pound. This makes it a great alternative to European truffles. The ideal environment for growing truffles is where the climate is warm and humid. But they can grow in deserts, too. In Middle Eastern countries, people gather various truffles after rainfall. Place the wrapped truffles in an airtight jar and store it in the refrigerator. Don t store them in room temperature. Truffles with pungent flavor such as winter varieties can be stored in whole eggs or uncooked rice that can absorb excess flavor. If you want to freeze the truffles, you can keep them in olive oil before doing that. Perigord truffle- also called French black truffle which is found in Spain, Australia and United States. Its color is blue-black on the outside and would eventually turn to brown-black as it ages. Piedmont truffle the Italian white which is light-colored and brittle. It would be beige in color and would turn to dark-brown as it matures. Host plants - There are truffle businesses, like the Garland, that do not only buy gourmet mushrooms and truffles, but they also sell inoculated trees to serve as host plants or trees for the mushrooms. They usually sell oaks and hazelnut trees which are inoculated with Black Perigord or Black Burgundy truffle, or whatever variety will be grown. Truffles are different from other mushrooms since it is a hypogean or an underground mushroom. What is harvested is the fruit, the roots are white filaments called as hyphas, and there is not stem. Truffles would suck sap from the host plant or trees. Those truffles that grow under the roots of oak trees are the most pungent, while those that grow in the roots of lime trees are the most aromatic.