The winery is located in the community of Wehlen, a district of Bernkastel-Kues (area of the Middle Mosel) in the German Mosel wine region. It is the ancestral estate of the Prüm family, which has since been divided up. It was founded by Sebastian Alois Prüm (1794-1871). After the death of his son Matthias (1835-1890), the estate was divided among his children in 1911. Sebastian Alois (1877-1959), named after the founder, received one of the largest parts. In 1971 the estate was taken over by his grandson Raimund Prüm aka "Roter Prüm". In 1964 it was divided into six parts, but in the meantime it was largely reunited with the annexation of the Wehlen and Graach vineyards of the Jos. Christoffel jr. Attached is a guest house. Daughter Saskia Andrea Prüm joined the winery in 2005 after several years of wandering in many wine-growing regions of the world and studying in Geisenheim as a graduate viticultural engineer and took over the responsibility for the estate in 2017. She is the first female winery owner of the family. Her initials correspond to the name of the winery, just as they did with the founder.
The vineyards comprise 15 hectares of vineyards in the individual locations of Bratenhöfchen, Graben, Johannisbrünnchen, Lay and Matheisbildchen (Bernkastel), Domprobst and Himmelreich (Graach), Schlossberg (Sommerau), Sonnenuhr (Wehlen), as well as Herrenberg and Treppchen (Erden). The famous sundial in the location of the same name in Wehlen was built in 1842 by Jodocus Prüm (1807-1876). From here the best wines come from vines, some of which are true to their roots. The area around the Sonnenuhr is cultivated as a museum vineyard, since the oldest vines, which date back to 1905, are found here.
The wines are mostly fermented spontaneously. They mature in steel tanks or in Mosel-Fudern. Sweet reserves, aroma-enhancing pure yeasts and chemical deacidification are avoided. The wines with storage and maturing potential are sealed with natural corks, the wines to be consumed young are sealed with screw caps. They are produced in the three-stage VDP classification model and marketed with the historical winery label. A number of contract winegrowers produce grapes in steep vineyards according to specifications. These harvested grapes are always graded into quality wines without reference to the producer or estate bottling and marketed under the name R. Prüm with a modern label. Around 130,000 bottles of wine are produced annually. The winery is a founding member of the VDP (Verband deutscher Prädikatsweingüter).