Wine Arcana

Region

Santorini

Also known as Santorini PDO

Santorini is a wine region in the southern Aegean, encompassing the Greek islands of Santorini, or Thira, and neighbouring Thirasia. Its dry whites centre on Assyrtiko, combining firm acidity with substantial flavour and body. Sweet Vinsanto develops another expression of the local grapes through sun-drying and prolonged ageing in wood.

Vineyards extend from near sea level to terraces around 300 metres in altitude. Wind, summer drought, and volcanic ground shape cultivation. The low, basket-like coils of the traditional kouloura training system protect bunches as they ripen close to the soil.

Wind, stone, and the shape of the vine

Volcanic ash, pumice, sand, and other erupted material form much of the vineyard ground. On slopes, stone terraces known as pezoules hold planting areas and help capture rainfall. These parcels require work by hand, and their accessibility differs from the flatter coastal vineyards.

The dry summer makes stored moisture valuable. Winter rain replenishes the ground; humid air and sea mist also reach the vineyards during the growing season. The effect depends on exposure and weather. A vine's rooting depth and the moisture held within its particular soil help determine how it endures the rainless period.

Strong northerly winds can cool the vineyard while battering exposed shoots and bunches. In a kouloura, growers bend and weave canes into a low crown. Fruit develops within the shelter of the resulting basket. Maintaining that shape requires repeated skilled pruning; the vineyard's appearance follows from the practical need to protect its crop.

Santorini also retains ungrafted vines. Its sandy, clay-poor volcanic soils have protected the vineyard from the phylloxera devastation experienced in many European regions. The survival of old vines and their local training systems gives the island an unusual continuity of vineyard practice.

Dry Santorini and Nykteri

The appellation was established in 1971. Its current dry-white blend requires at least 85% Assyrtiko, with Athiri and Aidani permitted alongside it.1. European Commission, approved Santorini specification amendment and single document, published 31 March 2022, sections 5 and 9; checked 14 September 2026. The dry-white Assyrtiko minimum rose from 75% to 85%. Many producers use Assyrtiko alone. The grape can retain marked acidity as sugar accumulates, giving ripe wines a firm structure. Citrus flavours are common, with a saline impression often used to describe the finish.

Cellar choices alter that structure. Maturation on fine lees can broaden the middle palate, while oak maturation can introduce further texture and flavour. These treatments produce a range from taut young whites to fuller wines suited to development in bottle.

Nykteri is a protected traditional term for dry Santorini with at least 13.5% natural alcoholic strength by volume and a minimum of three months in wooden barrels.1. European Commission, approved Santorini specification amendment and single document, published 31 March 2022, sections 5 and 9; checked 14 September 2026. The dry-white Assyrtiko minimum rose from 75% to 85%. Hatzidakis gives a more extended example: its Nykteri uses ripe Assyrtiko from Megalochori, short cold skin contact, fermentation with native yeasts, and twelve months in French oak barrels of different sizes. The producer bottles it unfiltered. Harvest maturity and this longer cellar programme help explain its full-bodied style.

Vinsanto

Vinsanto begins with overripe grapes dried in the sun. Water loss concentrates the must, providing the basis for a sweet wine whose acidity remains an important part of its balance. The blend requires at least 51% Assyrtiko; Aidani, Athiri, and small quantities of other traditional grapes may join it. The rules cover both naturally sweet and fortified versions, with at least 24 months of oxidative ageing in oak.1. European Commission, approved Santorini specification amendment and single document, published 31 March 2022, sections 5 and 9; checked 14 September 2026. The dry-white Assyrtiko minimum rose from 75% to 85%.

Santo Wines describes its standard naturally sweet Vinsanto as 85% Assyrtiko and 15% Aidani. Grapes dry for six to eight days, fermentation lasts forty to sixty days, and the wine spends three years in oak. Its much longer-aged 1993 bottling spent 23 years in French oak. Such extended maturation deepens the colour and develops aromas of dried fruit, nuts, coffee, and spice.

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