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
White wine balance different from red wine from which the tannic structure is removed. The balance is no longer based only on alcohol and acidity: this is the factor that explains the difficulty of making a white wine. For sweet and fortified white wines the presence of sugar adds a parameter to balance the alcohol and acidity. Maturing in the barrel gives wine a wooded touch and tannins from the oak give it structure. The strongest wines, as in some grand crus of Sauternes (Château d'Yquem for example) even support ageing in new wood. Ever since glass containers have existed, specialised glasses