Beniamino Zidarich's underground stone-vat cellar at Prepotto on the Carso plateau pours Vitovska, Malvasia Istriana, Prulke and Terrano from the limestone karst.
Address: Localita Prepotto, 23, 34011 Duino-Aurisina, Trieste, Italy, Friuli-Venezia Giulia
Castello di Spessa's 13th-century castle cellar above Capriva pours Sauvignon, Friulano, Pinot Grigio and the Casanova Pignolo across the 18-hole golf-course estate.
Tasting: Visit the 13th-century Castello di Spessa above Capriva del Friuli (Casanova once stayed at the castle in the 1770s), with a walk through the 18-hole golf course planted between the vineyards and a flight of Sauvignon, Friulano, Pinot Grigio and the Casanova Pignolo red.
11th-century Castello di Buttrio above the Rosazzo hill pours Friulano, Refosco and the Riserva del Castello across the Museo del Vino, the vineyard walk and the castle restaurant.
Tasting: Visit the 11th-century Castello di Buttrio cellar above the Rosazzo hill, with the Museo del Vino on the cellar floor (winemaking objects across the Colli Orientali centuries), a vineyard walk on the south-facing ponca and a flight of Friulano, Refosco dal Peduncolo Rosso and the Riserva del Castello.
Josko Gravner's Oslavia cellar pours Ribolla Gialla Anfora, Breg and Rosso Breg from the buried qvevri amphorae installed since 2001 at the Lenzuolo Bianco hillside.
Tasting: Visit the qvevri amphora cellar where Josko Gravner buried the first amphorae in 2001 after his journeys through Georgia, with a walk to the Lenzuolo Bianco hilltop and a flight of Ribolla Gialla Anfora, Bianco Breg Anfora and Rosso Breg Pignolo. Visits run 60 to 90 minutes Monday to Friday by appointment.
Sasa and Ivan Radikon's cellar at Tre Buchi above Oslavia pours the orange Oslavje and the 500 ml Sivi Pinot Grigio that Stanko Radikon pioneered alongside Josko Gravner.
Tasting: Visit the Tre Buchi cellar where Sasa and Ivan Radikon continue Stanko Radikon's extended-skin-contact programme, with a flight of Oslavje, Ribolla Gialla and the 500 ml Sivi Pinot Grigio. Visits run by reservation only Monday to Friday.
Bensa family cellar at the Oslavia ridge pouring Ribolla Gialla, Friulano and the Bianco della Castellada extended-skin-contact blend across vineyard walks on the ponca slopes.
Tasting: Visit the Bensa family cellar at the top of Oslavia, with a vineyard walk on the ponca slopes and a flight of Ribolla Gialla, Friulano and the Bianco della Castellada extended-skin-contact blend.
Damijan Podversic's Kalvarija cellar above Gorizia pours Kaplja, Ribolla Gialla and the Prelit red, the Oslavia school's fourth orange-wine reference.
Tasting: Walk the Kalvarija slope cellar above Gorizia with Damijan Podversic, with a flight of Kaplja (the Friulano, Chardonnay and Malvasia skin-contact blend), Ribolla Gialla and the Prelit Cabernet and Merlot red.
