Domaine Sigalas runs a two-hour master class covering Santorini's PDO classification, the kouloura basket-vine system and the family's experimental Mavrotragano programme. Tastings progress through 8 wines including library Vinsanto.
Tip: Combine with the private vineyard walk for a full half-day; advance booking required and English-language sessions run daily.
Address: Baxedes, Oia, 84702 Santorini, Greece
The Argyros Vinsanto Vertical compares 4-, 12- and 20-year-old Vinsanto bottlings from the estate's library. Mathaios Argyros and the cellar team explain the sun-drying process, oak ageing and the 200-year-old ungrafted vineyards.
Tip: Book directly via the estate office; the Argyros library Vinsanto stretches back decades and the 50-year bottling appears on the vertical menu seasonally.
Venetsanos Winery runs a guided cellar tour explaining the gravity-flow production system built into the caldera cliff in 1947. The structured tasting concludes on the upper terrace overlooking the volcano and Athinios port.
Tip: The sunset slot is the most-booked of the day; reserve early for late-afternoon English-language tours from May through October.
Santo Wines runs a structured tasting programme on the caldera terrace teaching the kouloura basket-vine system, PDO Santorini classification and Vinsanto production. Daily walk-in tastings cover 6 to 12 wines per flight.
Tip: Reserve the 12-wine premium flight at sunset; the panoramic caldera view from the upper terrace is unmatched among Santorini's winery visitor centres.
The Koutsogiannopoulos Wine Museum combines a self-paced audio tour of the 300-metre cave winemaking exhibition with a structured tasting at the bar. Visitors learn 400 years of Santorini vine-grower history before sampling estate wines.
Tip: Book the premium 6-wine flight to include the Vinsanto vertical at the end of the cave route; the audio guide is available in 14 languages.
