The Nussbrunnen vineyard in Hattenheim has a south-southeast exposure. The name derives from a "Brunnen," or spring, that was once surrounded by nut trees. The source of the spring is still visible today. It lies well protected from cold northerly winds on the lower reaches of the slope, adjacent to the site Wisselbrunnen. Among the finest parcels of vines in the Rheingau is the 1.5-ha/3.7-acre parcel within Nussbrunnen that is owned by the Balthasar Ress estate. Its special soil conditions, e.g. deep, loam-loess soils that guarantee an excellent water balance, as well as the prevailing microclimate, are among the reasons that Nussbrunnen is such a top site. These are the prerequisites that enable grapes to consistently yield top-quality wines.