Assyrtiko is Santorini's signature white grape, and the reason wine writers talk about the island in the same breath as far larger wine regions. It produces a dry, high-acid white with a distinctive salty, mineral edge that growers attribute to the island's volcanic soil — and it's grown here in conditions that would kill most other vines.
Why the volcano matters
Santorini gets very little rainfall and almost no natural water source, so vines survive largely on morning humidity absorbed through the volcanic soil, known locally as aspa. The soil itself is porous pumice and ash rather than typical fertile earth, which stresses the vines and, by most winemakers' accounts, concentrates flavour in the grapes.
Some of the oldest vines in Europe
Because phylloxera — the root louse that devastated European vineyards in the 19th century — cannot survive in Santorini's sandy volcanic soil, many of the island's vines are ungrafted and extremely old, some reportedly over a century. A number of producers make a point of bottling cuvées specifically from these old vines.
What it tastes like
Expect high acidity, a dry, bone-crisp finish, and citrus or green-apple notes layered with a saline, almost smoky minerality that's hard to find in wines from anywhere else. It pairs naturally with the island's seafood and fava.
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