Location and Climate
Brunnenhäuschen lies east of the Morstein and above the Steingrube, on ground that rises from roughly 180 to 240 metres above sea level. It faces south, yet it is among the cooler, later-ripening sites in Westhofen. Wittmann credits the elevation and the exposure to the west wind, which tempers the sun and keeps temperatures down. The consequence is a long vegetation period, a late harvest, and Rieslings that hold cool aromatics and firm acidity. The slope is gentle by German standards, with wein.plus recording gradients only around ten percent, a world away from the sheer inclines of the Mosel.
Geology and Soil
The defining material here is limestone. Clay marl packed with limestone characterizes the topsoil, and the subsoil is broken by large limestone rock. Across parts of the site the earth is stained red by a high iron-oxide content, forming a terra rossa that lends the Rieslings a creamy minerality. Wittmann and grosse-lage.de both describe a stony, limestone-rich loam over this fractured calcareous bedrock.
The Abtserde Parcel
Within the roughly thirty hectares of Brunnenhäuschen lies Abtserde, a plot of a few hectares that was an independent single vineyard until the German land consolidation of 1971 folded it into the larger site. Because the old name lost its legal standing, Keller, who acquired the parcel in 2006, bottles it as the trademarked "Abts E®." Keller reports that Abtserde carries the highest level of active limestone of any vineyard in Westhofen, a concentration the estate compares to the Grand Cru Les Clos in Chablis. That active lime is why the young wine tastes so taut and asks for long bottle age before its fruit, acid and texture settle.
The Wines
Riesling dominates, though Silvaner, Spätburgunder and Dornfelder are also grown. The house style runs to juicy, yellow-fruited Rieslings with an intense, limestone-driven mineral core. On Keller's 2024 Abts E, wein.plus described a firm, deep and cool wine, faintly smoky, with bright citrus and peach and an intense chalky, salty minerality. Mosel Fine Wines awarded the 2007 Abtserde Grosses Gewächs 96 points, praising a refined nose of bergamot, grapefruit, hazelnut and mint over a long, elegant finish.
Producers
Weingut Keller is the estate most closely bound to the site through its Abts E bottling. Wittmann farms within the old Abtserde and produces a Westhofener Brunnenhäuschen Riesling Grosses Gewächs. Gutzler bottles a Brunnenhäuschen Spätburgunder Grosses Gewächs, evidence that the limestone here serves Pinot Noir as well as Riesling. Other growers, among them Schwahn-Fehlinger and Uwe Spies, hold shares in the vineyard.