This typical taste and smell, also commonly referred to as " Alterston " or "Altl" in dialect, occurs mainly in older white wines. The name is derived from the Old High German "firni" for "previous year" or "old". However, this most common type of ageing hue should not be confused with UTA (atypical ageing hue), Böckser (Lagerböckser) or the related Petrolton....
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