Comparison
Cabernet Sauvignon vs Merlot
The two halves of the Bordeaux blend — which is firmer, and which should you choose?
The short answer
Cabernet Sauvignon and Merlot come from the same country but sit in different territory. The main differences: Cabernet Sauvignon has more acidity; Cabernet Sauvignon has more tannin; Cabernet Sauvignon has more aromatic intensity.
Choose
Cabernet Sauvignon
Choose Cabernet Sauvignon if you want something fresher and more acidic, more tannic and structured, more aromatic.
Worth knowing
These two are blended together across Bordeaux precisely because they compensate for each other: Cabernet brings structure and Merlot brings flesh. Comparing them is really a question about how much tannic grip you want.
Where they genuinely differ
Only differences large enough to notice in the glass are listed here. A gap of half a point on a five-point scale is noise, and WineHQ does not dress it up as a finding.
Acidity
Clear differenceTotal perceived acidity. Rises in cooler climates and with earlier picking; falls with heat and ripeness.
Cabernet Sauvignon is fresher and more acidic: medium-plus against medium.
Tannin
Clear differencePhenolic compounds from grape skins, seeds, stems and oak. The principal structural axis of red wine.
Cabernet Sauvignon is more tannic and structured: medium-plus against medium.
Aromatic intensity
Clear differenceHow strongly the wine smells before it is tasted. Some grapes are intrinsically aromatic; others express mainly on the palate.
Cabernet Sauvignon is more aromatic: medium-plus against medium.
Herbal / green character
Clear differenceHerbs, grass, blackcurrant leaf, capsicum and other green notes, largely driven by methoxypyrazines and picking decisions.
Cabernet Sauvignon is more herbal and green: medium against low-medium.
Spice
Clear differencePepper, clove, cinnamon and related spice notes, whether from the grape (as with rotundone in Syrah) or from oak.
Cabernet Sauvignon is spicier: medium against low-medium.
Earthy character
Clear differenceForest floor, mushroom, wet stone, clay and undergrowth notes. Frequently, though not exclusively, associated with cooler and more traditional styles.
Cabernet Sauvignon is earthier: low-medium against low.
Where they are much the same
Just as useful: knowing which parts of the choice do not matter.
- Sweetness: Similar — both low.
- Alcohol: Similar — both medium-plus.
- Body: Similar — both medium-plus.
- Fruit intensity: Similar — both medium-plus.
- Oak influence: Similar — both medium.
Full side by side
| Dimension | Cabernet Sauvignon | Merlot |
|---|---|---|
| Acidity | typically medium-plus, ranging from medium to medium-plus (4/5) | typically medium, ranging from low-medium to medium (3/5) |
| Tannin | typically medium-plus, ranging from medium to high (4/5) | typically medium, ranging from low-medium to medium-plus (3/5) |
| Aromatic intensity | typically medium-plus, ranging from medium to medium-plus (4/5) | medium (3/5) |
| Herbal / green character | typically medium, ranging from low to medium-plus (3/5) | typically low-medium, ranging from low to medium (2/5) |
| Spice | typically medium, ranging from low-medium to medium (3/5) | typically low-medium, ranging from low to medium (2/5) |
| Earthy character | typically low-medium, ranging from low to medium (2/5) | low (1/5) |
| Texture | typically medium, ranging from low-medium to medium-plus (3/5) | typically medium-plus, ranging from medium to medium-plus (4/5) |
| Sweetness | low (1/5) | low (1/5) |
| Alcohol | typically medium-plus, ranging from medium to high (4/5) | typically medium-plus, ranging from medium to medium-plus (4/5) |
| Body | typically medium-plus, ranging from medium to high (4/5) | typically medium-plus, ranging from medium to high (4/5) |
| Fruit intensity | typically medium-plus, ranging from medium to high (4/5) | typically medium-plus, ranging from medium to medium-plus (4/5) |
| Oak influence | typically medium, ranging from low to high (3/5) | typically medium, ranging from low to medium-plus (3/5) |
| Savoury character | typically medium, ranging from low-medium to medium-plus (3/5) | typically medium, ranging from low-medium to medium (3/5) |
| Floral character | low (1/5) | low (1/5) |
| Perceived freshness | typically medium, ranging from low-medium to medium-plus (3/5) | typically medium, ranging from low-medium to medium (3/5) |
| Carbonation | low (1/5) | low (1/5) |
| Serve at | 15–17°C | 15–17°C |
| Typical flavours | blackcurrant, black cherry, cedar, graphite, tobacco | plum, black cherry, chocolate, cedar, fruitcake |
Values are typical points within each wine’s range. Both wines vary — see the individual pages for how much.
Read more
Grape
Cabernet Sauvignon
The world’s most planted red wine grape: thick-skinned, tannic and blackcurrant-scented, and the backbone of Bordeaux’s left bank.
Grape
Merlot
A plush, plum-scented Bordeaux variety that ripens earlier than Cabernet Sauvignon and produces softer, rounder wine.
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