Claudio Hartmann

At a Glance - Current role: winemaker at CK-Weine. - Place: Schinznach Dorf, Switzerland. - Career history: CK-Weine. - Farming: “We have cultivated according to organic guidelines since 2010 and converted to Demeter in 2018.” - Craft specialty: “Our specialty is sparkling wine, which we bottle ourselves and riddled by hand.” - Additional wine: “In addition, we also make an Amarone-style red wine from the Cabernet Jura grape variety.” The farming line is clear: organic guidelines since 2010, Demeter since 2018. For Claudio Hartmann, that gives CK-Weine a defined agricultural framework, one that favors restraint, continuity, and close attention at every stage. The estate’s sparkling wines show that same logic in practice. They are the specialty, bottled on site and riddled by hand, with the handwork still visible in the final wine rather than hidden behind it. There is range inside that discipline. CK-Weine also makes an Amarone-style red wine from the Cabernet Jura grape variety, which adds a different weight to the cellar without changing the underlying method. In that sense, Claudio Hartmann’s work at CK-Weine is shaped by one set of conditions: a family business, 3.5 hectares, and a farm-and-cellar approach that keeps technique tied to place.

In Their Words “We are a family business with 3.5 hectares of vines in the Schenkenbergertal in the canton of Aargau.” “We have cultivated according to organic guidelines since 2010 and converted to Demeter in 2018.” Read together, those lines describe a producer built around bounded acreage, long-term farming rules, and hands-on cellar work. At CK-Weine, Claudio Hartmann’s role is less about scale than about control of detail: a compact estate, a clear farming standard, and a sparkling-wine specialty that still leaves room for manual riddling and an additional red wine made from Cabernet Jura.