Truffle Cultivation
There are successful, producing orchards across the US and Canada, including Virginia, North and South Carolina, Tennessee, Kentucky, California, Oregon, Washington, Idaho, British Columbia, Ontario and Quebec.
Are there other places outside the U.S., Canada, France, and Italy where truffle farms can be found?
Spain, New Zealand, Australia, Chile, South Africa have thriving truffle industries that are expanding rapidly. The list of countries producing truffles is rapidly expanding.
There is really no difference in cultivated truffles in the US or Europe. Different species of trees may be preferred due to regional climates, but the trees are all inoculated with the same species of truffle, so the harvested truffles will be identical.
Theoretically a Black Truffle (Tuber melanosporum) is genetically the same in Europe, Australia or the US and should have the same basic flavor and aroma profile. The role of terroir can impact the value of the truffles as locally grown truffles can command a higher price. Also, because some of the aroma profile of truffles is contributed by bacteria that inhabit the truffle, it has been found that aroma profiles can vary from location to location.
Cultivated truffles can be grown outside their natural range because we have better control of soil chemistry, orchard management and irrigation. Various species of trees are used depending on the type of truffle to be grown and the climate. Cultivated truffles can take from 5-10 years before the first harvest. When an orchard is planted with good quality inoculated trees and the orchard is well managed (irrigation, pruning, weed control, soil chemistry) an orchard can be successful and sustainable and may last for generations (we observe orchard senescence after 25 years of production).
Foraging
Several species of culinary truffles are native to the USA, Mexico and Canada. There are Oregon white truffles, Oregon black truffles and Oregon brown truffles found in the Pacific northwest US and Pacific southwest of Canada. The Appalachian truffles are found in northeast US and southeast Canada, and the Pecan truffles in south-eastern Canada, center-south parts of the US, and northern Mexico.
Pigs are successful hunters, but they tend to eat the truffle. It’s quite difficult to fight 300lb pig for the truffle. There are old tales of truffle hunters in Italy that were missing a finger or two after years of truffle hunting with pigs. And it’s difficult to transport a large pig to the forest and it’s even more difficult to keep what you are doing a secret, so dogs became the preferred method for truffle hunting. Initially, in Italy it was a breed called the Lagotto Romagnolo, an Italian Water Dog or Italian Truffle Dog, that became well known for truffle hunting. Today many breeds of dogs with a decent nose, good attitude, strong work ethic, and good training can make excellent truffle hunters.
Truffle Market
Culinary
Truffles aroma is especially soluble in fat, so adding truffles to butter, eggs, cream, and cheese are excellent ways to really highlight the truffle aroma. In fact, you can place fresh truffles in a sealed container next to fresh eggs in shell, butter, bacon, even avocados and the truffle aroma is so powerful that it will be infused directly into the raw ingredients. After infusing ingredients with truffles, the truffle is best used shaved or grated on top of the finished dish, to highlight the aromas.
The types of truffles used for different dishes can vary based on individual tastes and preferences and chefs may have strong opinions on what works best for different truffles. There is strong agreement that pasta, eggs and cheese provide an excellent palette for the magic of truffles.
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