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Since 1988 they produce nearly every year a Vinothekfüllung of Grüner Veltliner, which has been accompanied by a Riesling since 2000. Both of the Vinothekfüllungen could be defined as dry Auslesen but sweet Auslesen and Prädikatswein also count among the Knolls’ repertoire, and one should certainly sample these essences.
The family cultivates wine on 16 hectares on hillside vineyard terraces of Wachau named as Kellerberg, Loibenberg, Pfaffenberg and Schütt which yields the fruit for the famous range of Knoll Riesling and Veltliner, which are all clear, precise, mineral-rich and structured, frequently revealing their full potential after years or even decades.
The Loibenberg geology is dominated by Gföhl gneiss, although there are also several parcels where loess patches developed, further emphasising the diversity. The vineyard was documented in 1381, when is was still called "leub_n perig".