The 2015 Erdener Treppchen Riesling Auslese is sourced in the whole Treppchen, where Loosen owns 4 or 4.5 hectares. The wine opens clear, fresh and piquant on the nose, and reveals a juicy intensity and slate-like freshness on the palate. It is very stimulating, though not as deep and rich as the corresponding Sonnenuhr Auslese.