RSRV Cuvée 4.5 is a unique blend of five of Maison Mumm’s Grand Cru terroirs. Pinot Noir – from Verzenay, Aÿ and Bouzy – confers power and structure, as well as fresh, generous aromas. Chardonnay – from Cramant and Avize – lends elegance and liveliness, as well as tangy citrus notes.