What to expect in the glass

A young Cabernet Sauvignon is deep ruby to purple. On the nose: blackcurrant (cassis), blackberry, sometimes green pepper (in cooler climates) or mint (warm Australian examples). With oak ageing, secondary notes of cedar, cigar box, vanilla and graphite develop. The palate shows firm, gripping tannin and a long finish — especially in younger Bordeaux. With bottle age, the fruit evolves from primary blackcurrant toward dried fruit, leather, tobacco and earth; tannins soften and integrate.

The grape: origins and parentage

Cabernet Sauvignon is a natural cross between Cabernet Franc and Sauvignon Blanc, identified by genetic research at UC Davis in 1997. It likely arose in southwestern France in the 17th century. The combination of its parents' best traits — Cabernet Franc's structure and Sauvignon Blanc's aromatic freshness — gives Cabernet Sauvignon its distinctive profile. The Vitis International Variety Catalogue (VIVC) documents its genetics in full.

Key regions

Region Character Body
Médoc / Haut-Médoc (Bordeaux) Blackcurrant, cedar, graphite, firm tannin. The classical benchmark. Needs 10–20 years to integrate. Full
Napa Valley (California) Richer, riper — cassis, dark chocolate, vanilla (oak). Often approachable earlier than Bordeaux. Full
Coonawarra (South Australia) Eucalyptus, blackcurrant, savoury. Grown on famous terra rossa (red-clay over limestone) soils. Full
Maipo Valley (Chile) Elegant, fresh cassis, green pepper notes, fine tannin. Excellent value benchmark. Full-medium
Stellenbosch (South Africa) Dark fruit, firm structure, tobacco leaf. Warming climate produces riper styles. Full
Tuscany — Super Tuscans (Italy) Blended with Sangiovese or Merlot; savoury, structured, long-lived. Full

Cabernet Sauvignon and oak

Cabernet Sauvignon has a natural affinity with oak. Its high tannin and acidity can handle — and benefit from — the additional tannin, oxygen exposure and flavour compounds oak provides. New French barriques (225-litre barrels) add vanilla, cedar and complexity; American oak adds more obvious vanilla and coconut notes. Most serious Cabernet is aged in small oak barrels for 12–24 months before bottling. See what oak does to wine and wine ageing methods for the full picture.

Sources: WSET (Level 3 Cabernet Sauvignon study notes); VIVC (Vitis International Variety Catalogue — parentage and genetics); AWRI (tannin extraction and ageing research). Last updated: 2026-10-19. Corrections via the contact form.