Now that I have my grape concentrate/brix problem figured out thanks to Rick and Johnathon, does anyone have a yeast recommendation for a pyment made with johannesburg reisling concentrate? I'm thinking of using one of these: 71B-1122 Narbonne. A rapid starting and constant fermenting semi-dry white wine yeast that will enhance fruit flavors and add fruity esters, ideal for fermenting with neutral grapes or concentrates. Limits phenol extraction and may neutralize up to 40% of malic acid producing a smooth and rounded "nouveau" wines that will mature quickly. A low foaming strain. Whites, roses, nouveaus and concentrates. 59-89° F (15-° 30C) D-47 White Wine. A vigorous white wine yeast that will leave a wine very full bodied with enhanced mouthfeel. Accentuates varietal character and contributes ripe tropical fruit and citrus notes. Recommended for Chardonnay and Rose as well as mead, when nutrients are supplemented. Whites, rose, mead.