Assyrtiko

Assyrtiko comes from the Greek island of Santorini. VIVC records Greece as its country or region of origin, and in Jancis Robinson's words the grape is "From the Greek island of Santorini". Its parentage is unknown: both parent fields in its VIVC passport are blank, and no full pedigree is recorded. The passport does flag offspring, but WineWiki's VIVC-derived lineage data links no children or siblings for Assyrtiko.

• VIVC prime name: Assyrtiko; VIVC variety number 726; country of origin: Greece
• Place of origin: Santorini
• Parents: none recorded (parentage unknown)
• Offspring: flagged in the VIVC passport; none linked in WineWiki's lineage data

Santorini is seen as the spiritual home of Assyrtiko, and the island's vines grow in volcanic soils. Those light soils are a mixture of white volcanic ash (aspa), pumice, sand and basalt, and they are utterly lacking in clay. The climate is essentially a hot desert, with around 350 mm of annual rainfall. These soils are completely inhospitable to phylloxera, and all of the island's vines are ungrafted.

• Volcanic soil composition: white volcanic ash, pumice, sand and basalt, with no clay
• Around 350 mm of annual rainfall in an essentially hot desert climate
• Phylloxera cannot take hold in these soils, so all Santorini vines are ungrafted

Assyrtiko keeps its acidity high even as it develops robust levels of alcohol, and that crisp acidity keeps the alcohol in balance. Aromatic intensity is restrained: this is more a textural grape, built on extract, body and structure, than an aromatic one. Its flavours lean toward citrus, especially lemon, with floral notes such as orange blossom and jasmine, a touch of ginger spice, and a salty streak some tasters pick up. Some Assyrtiko sees oak ageing or fermentation to add body. Joanna Simon says that, when applied well, oak can add depth and breadth plus toasty flavours that complement the grape's intense flavour profile and high acidity.

On Santorini, the meltemia, a cooling northern wind that whips over the Aegean in summer, helps keep the grapes cool and fungus-free. Without trellising or stakes, growers train their vines into the traditional kouloura (basket) shape, a coiled wreath kept low to the ground. The fruit clusters hang under the canopy, shaded from the summer sun, and sit inside the basket, protected from the winds. Yields are extremely low, with averages usually around 20 to 25 hl/ha.

• Kouloura basket training protects the grapes from Santorini's winds
• Fruit clusters hang under the canopy, shaded from the summer sun
• Average yields usually around 20 to 25 hl/ha

Assyrtiko produces mainly dry white wines, some of them aged in oak, and a number of sweet wines are made from sun-dried grapes. The dry PDO Santorini whites are lean, mineral and very concentrated. Modern Nychteri is a barrel-aged wine under the Santorini PDO rules. Vinsanto, the island's sweet wine, is made from grapes dried in the sun for up to two weeks after harvest; the wines are incredibly sweet, and Assyrtiko keeps their acidity honest. On Santorini, the dry PDO wines may blend Assyrtiko with two other white varieties, Athiri and Aidani.

• Primary style: lean, mineral, very concentrated dry whites
• Nychteri is the barrel-aged style under the Santorini PDO rules
• Vinsanto is a sweet wine made from sun-dried grapes
• Santorini PDO dry wines may blend Assyrtiko with Athiri and Aidani

Under the Santorini PDO rules, Assyrtiko must make up 75% of the dry PDO wines. The grape also takes part in dry PDO Slopes of Meliton, PDO Rhodes and PDO Handakas Candia, and in sweet wines such as PDO Monemvassia-Malvasia. It has been planted in most Greek wine regions, from other Aegean islands to Macedonia, Central Greece and the Peloponnese. H.P. Olmo, a former UC Davis professor, obtained an Assyrtiko selection from the University of Athens grapevine collection in 1948. In Australia, Clare Valley-based Jim Barry Wines produced the country's first commercial bottling of Assyrtiko.

• PDO Santorini dry wines must be 75% Assyrtiko
• Also in dry PDO Slopes of Meliton, PDO Rhodes and PDO Handakas Candia, and sweet PDO Monemvassia-Malvasia
• H.P. Olmo of UC Davis obtained an Assyrtiko selection from the University of Athens collection in 1948
• Jim Barry Wines in the Clare Valley made Australia's first commercial bottling, the 2016 vintage

Assyrtiko is a variety with excellent ageing potential. Barrel-aged and stainless-steel wines alike can age confidently for five or even ten years, sometimes significantly more, developing aromas and flavours of ripe fruits, honey and intense minerality. Like good Riesling, modern Assyrtiko can develop a petrol note with time in the bottle. It is also one of the rare white grapes that can grow in hot, dry conditions, and Peter Barry of Jim Barry Wines believes climate change could make it well suited to the future of Australian viticulture.

• Ages five to ten years or more, developing honey and intense minerality
• Like good Riesling, it can develop a petrol note in bottle
• Grows in hot, dry conditions while keeping high alcohol balanced by crisp acidity
• Maintains high acidity even in hot Mediterranean summers

Primary sources: https://www.vivc.de/index.php?r=passport%2Fview&id=726 ; https://winesofgreece.org/varieties/assyrtiko/ ; https://fps.ucdavis.edu/fgrdetails.cfm?varietyid=3509 Reference sources: https://www.jancisrobinson.com/learn/grape-varieties/white/assyrtiko ; https://www.guildsomm.com/public_content/features/articles/b/stamp/posts/volcano-island ; https://www.decanter.com/learn/assyrtiko-wine-taste-of-ask-decanter-394036/ ; https://www.decanter.com/wine-news/jim-barry-wines-produces-first-australian-assyrtiko-344979-344979/ ; https://winefolly.com/grapes/assyrtiko/ Last verified 2026-10-19