In San Gimignano, the Vernaccia grapes planted in sandstone based vineyards tend to produce the best examples of Vernaccia di San Gimignano. The wine is characteristically dry with crisp acidity and a slightly bitter finish. Most consider Vernaccia di San Gimignano to be a simple, everyday white; its popularity being owed less to what is in the glass and more to it being the local wine of San Gimigniano, one of Tuscany's most touristy towns. Despite this reputation, modern winemaking has introduced the use of oak aging to give the wine another layer of complexity and roundness. While very different from the historic style of Vernaccia di San Gimignano, the success of these more modern and international styles has not yet been established.