The ungrafted vines from which Dr. Loosen produces this great Riesling are up to 120 years old. They reside in a plot called "Urglück," a steep site that rises steeply directly behind the village in the heart of the Würzgarten. The vines grow in red volcanic and slate soil that gives the wine aromas of spice along with tropical fruits, such as pineapple and mango. The must is fermented spontaneously in a 1,000-liter barrel and sits on the full lees for twelve months.