Sometimes the most intriguing wines introduce us to something unfamiliar. The 2025 Dr. Konstantin Frank Ethos does just that, bringing together Riesling and Rkatsiteli (pronounced rkat-si-TEL-ee), an ancient Georgian grape that deserves more attention. Disclosure: I received this wine as a complimentary media sample from Dr. Konstantin Frank Winery. All opinions and tasting impressions are…