It is a relatively slow fermenter, identical to Geisenheim Epernay, but producing less foam. This yeast requires nutrient addition for chardonnay fermentations. Cote des Blanc produces fine, fruity aromas and may be controlled by lowering temperature to finish with some residual sugar. It is recommended for reds, whites, sparkling cuvÃ©es, and non-grape fruit wines (especially apple). Ferments best between 64Âº and 86Âº F (17Âº - 30Âº C). Sensitive below 55Âº F (13Âº C).