Dr. Loosen produces riesling from his vineyards, classified in 1868 as "Grand Cru" in the Prussian classification, spread throughout the Moselle valley. The high quality of its cru is due to three factors: first of all, the exceptional climate along the Moselle valley. The steep slopes with south exposure allow the grapes to reach full ripeness, fresh nights, even in the summer, retain the characteristic grape acidity, while the proximity of the river reflects the sun's rays and retains the heat thus helping The grapes to mature and protecting the vines from the frosts. The other quality factor is that the soil is rich in slate and mineral substances: the rocky slate soil and the numerous emerging rocks keep the heat of the day and ensure full maturation. A thin surface layer forces the vines to dig deep into the soil to find nutrients, thus producing intense minerals and vibrant wines. The ultimate quality factor is due to the high age of corporate vineyards with an average age of over 60 years (120-year-olds) they are still on their feet since phylloxera could not develop along the Moselle area . Erder Treppchen is a kabinett that comes from a rich soil of iron and red slate which translates into wines that are muscular and complex, with a mineral and intense finish.
