If you're buying Santorini wine to take home rather than tasting it directly at a winery (see our winery profiles), the label carries more useful information than it might first appear — worth knowing what to look for.
PDO Santorini
"Protected Designation of Origin" (PDO) Santorini is a legally protected term — a wine can only carry it if made from grapes grown on the island under specific rules. This is the single most reliable marker that you're getting genuine island-grown wine rather than something blended or grown elsewhere and merely bottled nearby.
Assyrtiko, Nykteri, and Vinsanto — reading the style
These aren't competing brands, they're distinct styles covered in our Assyrtiko guide and Vinsanto guide: standard Assyrtiko is the dry, high-acid everyday style; Nykteri specifically means oak-aged, typically fuller-bodied; Vinsanto means the sweet, sun-dried dessert wine. All three can be labelled PDO Santorini, so the style name (not just "Assyrtiko" as a grape name) tells you what you're actually getting.
Vintage
Unlike some regions where vintage variation is minimal, Santorini's harvest conditions (see our best time to visit guide for how the growing season plays out) can vary meaningfully year to year given how marginal and weather-dependent the island's dry-farming is. A specific vintage isn't automatically "better," but producers and specialist retailers can usually tell you which recent years were considered particularly strong.
Organic and natural certification marks
If a bottle carries an organic certification logo (EU organic farming leaf, or a national equivalent), that's a verifiable claim, unlike "natural" or "sustainable" language on a back label, which isn't legally regulated the same way — see our organic and natural producers guide for which wineries pursue formal certification.
Where to buy for the best value
Directly from the winery (see our first winery visit guide) is consistently better value than supermarkets or tourist-area shops in Fira and Oia, which mark up significantly on the same bottles.
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