A territorial stamp category of the Lower Austrian winegrowers association Vinea Wachau Nobilis Districtus for dry white wines. Overall, there are the three quality levels Steinfeder, Federspiel and (as the highest) emerald. On the steep stone terraces of the winegrowing area Wachau The emerald lizard, from which the name derives, basks in the vineyards. By the year 1986, the name was the way Honifogl, and then had to be changed for legal reasons. In this category, the most valuable and ripest white wines from the best locations can be found, only in the best years of grapes with perfected physiological maturity be pressed. They must have a minimum must weight of 18.5 ° KMW and at least 12.5% vol alcohol content. From the year 2006 was allowed to use also alternative closures (twist or glass closure) - until then, natural cork was mandatory.