June 12, 2015 Guest User Sommelier Feature Week 5. Sommelier Feature: Fritz Haag, Brauneberger Riesling. June 12, 2015 Guest User Sommelier Feature Week 5 of our Sommelier Feature series. One of our favorites grapes, Riesling, and the best terroir to grow it. Producer profile on Fritz Haag and town of Brauneberg.