Keller’s “RR” is one of those insider’s bottles. Normally, the wine is sourced from a rare red-soil parcel within the Kirchspiel. This cask rarely ferments totally dry and the Kellers have always enjoyed the natural balance of the wine. It’s what we’d call a “feinherb” – the wine is just a bit off-dry. Normally, you’ll see the bottle labeled as “Kirchspiel RR,” the “RR” denoting “Riesling” from the “Red” soil.