Gantenbein and the Secrets of Switzerland’s Cult Wine

For most of us, it would be easier to climb the Matterhorn in flip-flops than to lay hands on a bottle of wine made by Daniel and Martha Gantenbein. The couple painstakingly grow and make minute quantities of Pinot Noir, Chardonnay, and Riesling on 6 hectares of high Alpine valley in German-speaking Switzerland. Before the wines have even been bottled, each and every one is already sold to long-time customers. How has this modest couple, working in unheralded terrain, become the emblem of Swiss wines par excellence? After nearly 40 vintages, Daniel and Martha have fine-tuned every element within their control — from…