Vines have been cultivated on Etna's flanks for roughly 3,000 years, and the volcano that repeatedly destroys them is also the reason they exist. Eruptions deposit basalt, ash and lapilli that weather into a black, free-draining soil unusually rich in minerals and almost entirely free of clay. That soil saved the mountain's viticulture twice: phylloxera struggled in the sandy ground, so ungrafted vines more than a century old still stand in several contrade above Passopisciaro and Solicchiata. The modern etna wine tasting tour circuit follows a geography of altitude rather than estates. Growers plant between roughly 400 and 1,000 metres, higher than almost anywhere else in Europe, and label their parcels by contrada in a manner closer to Burgundy than to the rest of Sicily. Nerello Mascalese and Nerello Cappuccio make the reds; Carricante, grown mostly on the eastern slope around Milo, makes the whites. Two Denominazione di Origine Controllata designations were granted in 1968, among the first in Sicily, at a moment when the region's vineyard area was collapsing from post-war emigration. Adrano, on the southwestern side, sits at the edge of this belt. The town's address for park access — 95031 Adrano, Metropolitan city of Catania, Italy — marks one of the quieter approaches to a volcano usually entered from Nicolosi or Linguaglossa. Entry to Mount Etna National Park itself is free; the winery visits and guided vineyard tours carry their own charges, which is why most visitors arrive already booked onto a Mount Etna winery tour rather than improvising. What distinguishes the cellars is architecture as much as agriculture. Many occupy nineteenth-century palmenti, stone pressing houses built on terraces where grapes were once crushed by foot and juice ran downhill through carved basalt channels into fermentation vats below. Several have been restored as tasting rooms; a few remain intact and unused, protected as rural heritage. Alberello bush-trained vines, staked with chestnut poles cut from the mountain's own woods, persist alongside modern trellising. The result is a wine region defined by risk. Ash falls can strip leaves in a single afternoon; lava flows in 1981 and 2002 rewrote parcel boundaries. Producers accept this, and a degustazione vini Etna sitting today usually includes a bottle whose vintage character is legible as weather and eruption alike. Any well-run etna wine tasting tour treats the volcano not as scenery behind the glass but as the agent inside it.