Dessert wine wine is also made in the United States, Austria, Croatia, Czech Republic, Slovakia, Slovenia, Hungary, Italy, Australia, France and New Zealand in smaller quantities. Some of the most famous dessert wines, such as Château d'Yquem of Sauternes and Tokaji Aszú of Tokaj-Hegyalja in Hungary, or Seewinkel in Austria are made using grapes mouldy with "Botrytis cinerea", which sucks water out of the grape whilst imparting flavours of honey and apricot to the future wine. The fungus requires specific conditions to produce noble rot; if it is too damp, the same fungus causes destructive grey rot. Vignerons must ensure that they
Sauvignon blanc to form a tart white wine. In the Sauternes region, the grape is blended with Sémillon to make the late harvest wine, "Sauternes". The composition of Sauvignon blanc varies from producer and can range from 5-50% with the "Premier Cru Supérieur" Château d'Yquem using 20%. A traditional practice often employed in Sauternes is to plant one Sauvignon Blanc vine at regular intervals among rows of Sémillon. However, Sauvignon blanc's propensity to ripen 1–2 weeks earlier can lead the grapes to lose some of their intensity and aroma as they hang longer on the vine. This has prompted more producers to