What is the principal white grape variety in Greece?

Assyrtiko is widely recognized as the principal white grape variety in Greece, particularly known for its role in wines produced on the volcanic island of Santorini. This grape variety thrives in Greece's unique terroirs and is appreciated for its high acidity, mineral character, and ability to express the local climate and soil conditions. Assyrtiko can produce a range of wine styles, from dry to sweet, and it is well-respected for its aging potential.

In contrast, while Viognier and Roussanne are notable grape varieties from regions like the Rhône Valley in France, they do not have the same prominence or historical significance in Greek viticulture. Chardonnay, although it's a global variety and widely planted in many countries, is not considered a principal variety in Greece, where native and indigenous grapes like Assyrtiko take precedence. Understanding the distinctiveness of Assyrtiko reinforces the appreciation of Greece's unique wine heritage and the importance of regional varietals.