What grape variety is noted for being representative of the Santorini OPAP region?

Assyrtiko is recognized as the hallmark grape variety of the Santorini OPAP (Protected Designation of Origin) region in Greece. This white grape is particularly well-suited to the volcanic soils and unique climate of Santorini, where it thrives under conditions of low rainfall and intense sunlight.

Assyrtiko is renowned for its high acidity, mineral character, and ability to produce wines that reflect the terroir of the island, often showcasing citrus flavors and a distinctive saline quality due to the proximity to the sea. The grape's early ripening and resistance to drought also contribute to its prominence in this region.

In contrast, the other grape varieties listed—Chenin Blanc, Riesling, and Pinot Grigio—are not typically associated with Santorini. Each of these varieties has its own notable regions and styles, but none capture the essence of the Santorini OPAP as effectively as Assyrtiko, which embodies both the agricultural history and the natural environment of the island.