Di Co, Cabernet Sauvignon, Napa Valley, 2019

A mineral soaked nose, all gravel and graphite and small dark wild berry fruit leads to a palate that has an imposing structural component and a sense of crunchy latent power. A seriousness pervades the flavours of unsweetened chocolate, blackberry, mountain herb and black plum. This will take at least five years to fulfil its potential, but for all its natural power, the pliant tannins and sleek mouthfeel point to the inherent quality of Oak Knoll’s Raphael vineyard, the exclusive source of fruit for this cuvee.