Black Truffle

Black truffles grow entirely underground, so human foragers rely on specially trained animals to sniff them out. Traditionally, hunters used female pigs, or sows, because truffles contain androstenol, a pheromone also found in boar saliva. Today, most hunters use specially trained truffle dogs, as they are easier to control and less likely to eat the valuable fungi.

The most highly sought-after culinary black truffle is Tuber melanosporum, commonly known as the Périgord truffle. It is named after the historic Périgord region in southern France where it predominantly grows. This specific species commands prices that can exceed $1,000 per pound on the open market.

Black truffles are mycorrhizal fungi, meaning they must form a symbiotic relationship with the roots of specific host trees to survive. They are exclusively found growing around the roots of deciduous trees, primarily European species of oak and hazelnut. The soil must be well-drained, alkaline, and subjected to distinct seasonal temperature changes for the truffles to properly fruit.

The prime harvesting season for Tuber melanosporum is during the winter months, typically running from late November through March. This is when the fungi have fully matured beneath the frost line and emit their strongest aroma. In contrast, other varieties like the summer black truffle are harvested from May through August but possess a much milder flavor.