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
Sauternes (wine) dry, the different temperatures from the two rivers meet to produce mist that descends upon the vineyards from evening to late morning. This condition promotes the development of the "Botrytis cinerea" fungus. By mid day, the warm sun will help dissipate the mist and dry the grapes to keep them from developing less favorable rot. The Sauternes wine region comprises five "communes"— Barsac, Sauternes, Bommes, Fargues and Preignac. While all five communes are permitted to use the name Sauternes, the Barsac region is also permitted to label their wines under the Barsac appellation. The Barsac region is located on the