This white grape was developed in the late 1920s in Germany and is a cross of Riesling and Silvaner. Many consider the grape to be superior in ripening and flavor to Riesling. It is named for the Ehrenfels Castle on the Rhine River.
In the Northwest, it’s grown primarily in British Columbia, where it results in a tasty dry or off-dry table wine. It really shines as an ice wine, thanks to its fruit-driven flavors and solid acidity.
A tiny bit also is grown in Oregon.