The 2021 Cos d'Estournel is a wine of real breadth and volume. It is also quite a departure from recent vintages in that strong Cabernet aromatics are very much front and center. Cedar, tobacco, dried herbs, menthol and licorice lend notable complexity to the bouquet. I expect the 2021 will need time to be at its best. Cos is usually much more alluring in its youth than the reticent but hugely promising 2021.