Malbec vs Cabernet Sauvignon

Quick answer: what is the difference?

Malbec and Cabernet Sauvignon can both make deeply coloured, dry red wines, but they usually create a different impression in the glass.

Cabernet Sauvignon is the more structured reference point. It commonly has firmer tannin, noticeable acidity and flavours associated with blackcurrant, cassis, blackberry, cedar or mint.

Malbec is often recognised by its deep colour, plum and blackberry fruit, violet-like floral notes and a rounder, smoother impression of tannin.

That is a useful starting point, not a rule. A cool-climate Cabernet can be lean and herbal, while a warm-climate Cabernet can be rich and plush. Malbec from Cahors can be firm, savoury and tannic, while many Argentine examples feel generous and rounded.

Malbec and Cabernet Sauvignon compared

The word tannin describes the drying or gripping sensation that can appear on your gums. Cabernet Sauvignon generally has more obvious tannin, but extraction, ripeness, oak and bottle age can narrow the difference.

For a fuller explanation, see What Are Tannins?.

Does Malbec taste sweeter than Cabernet Sauvignon?

No. Neither grape is inherently sweet.

A wine described as dry has little residual sugar. It can still smell and taste strongly of ripe plum, blackberry or blackcurrant. Fruitiness is not the same thing as sweetness.

A ripe Malbec may give a sweet impression because of its dark fruit and generous texture, but that does not necessarily mean the wine contains much sugar. Cabernet Sauvignon can also taste fruit-rich while remaining dry.

This is a useful distinction when reading a label or choosing between styles: sweetness, fruit intensity, body, alcohol and tannin are separate parts of a wine’s character.

Why do the same grapes taste different?

The grape is only one part of the final wine. Climate and site influence how quickly grapes ripen and how much acidity they retain. Harvest timing affects fruit character, alcohol and freshness. Winemaking choices such as skin contact, extraction, blending and oak maturation influence colour, tannin and texture.

Vintage conditions matter too. A warmer year may produce riper, fuller flavours, while a cooler year may preserve more acidity and create a firmer or more herbal impression.

Oak can add flavours such as vanilla, toast and spice, but oak is a winemaking choice rather than a defining property of either grape. What Does Oak Do to Wine? explains the idea in more detail.

Bottle age can also soften tannin and introduce savoury, earthy, tobacco or leather-like notes. That means a young Cabernet and an aged Cabernet may seem more different from each other than a young Cabernet and a young Malbec.

Argentina, Cahors and Bordeaux

Malbec is historically French and is strongly associated with Cahors, an appellation in south-west France. Cahors Malbec can be darker, firmer and more savoury than the softest, most fruit-forward examples.

Argentina is Malbec’s defining modern international reference point. Argentine Malbec is commonly associated with deep colour, plum, blackberry, cherry and violet notes. Different sites and winemaking approaches still produce a wide range of styles.

Cabernet Sauvignon is strongly associated with Bordeaux, where it is commonly used in blends with varieties such as Merlot, Cabernet Franc and Petit Verdot. In a Bordeaux-style blend, Cabernet Sauvignon often contributes structure, acidity and dark-fruit depth rather than acting alone.

These places are useful reference points, not guarantees. A bottle’s region can suggest context, but it cannot promise one fixed flavour profile.

What does this mean in Australia?

Cabernet Sauvignon is much more widely grown in Australia than Malbec. Australian Cabernet is encountered in warm inland areas as well as moderate and cooler regions. Coonawarra and Margaret River are familiar reference points for structured Australian Cabernet, while Cabernet is also grown in areas including the Riverland, Riverina and Murray–Darling–Swan Hill.

Australian Malbec is an established but much smaller category. It is encountered in regions including the Riverina, Murray–Darling–Swan Hill, Padthaway and Langhorne Creek, and may be made as a varietal wine or used in a blend.

Wine Australia’s 2024 vintage estimates recorded 153,644 tonnes of Cabernet Sauvignon and 8,120 tonnes of Malbec. A separate 2025 Malbec snapshot recorded 12,236 tonnes, so those figures should not be treated as a direct year-on-year comparison.

A regional name on an Australian label identifies a geographic indication when used in accordance with labelling rules. It does not guarantee that every Cabernet from Coonawarra, or every Malbec from the Riverina, will taste the same.

Which should you choose?

As a practical starting point:

• Choose Cabernet Sauvignon if you enjoy firmer tannin, blackcurrant or cassis, freshness and a more structured feel.
• Choose Malbec if you prefer deep colour, plum and blackberry fruit, floral notes and a rounder texture.
• If you like rich, ripe reds, either grape may suit you, particularly from a warmer site.
• If you prefer freshness and savoury structure, look for a cooler-climate expression rather than relying on the grape name alone.

There is no universal winner. Your preference may also change with the meal, vintage, serving temperature and the way the wine was made.

Food pairing starting points

Malbec’s dark fruit and rounded tannin make it a sensible starting point for grilled steak, barbecue, burgers, lamb, beef sausages, smoky vegetables and savoury mushroom dishes.

Cabernet Sauvignon’s acidity and firmer tannin can work well with steak, roast beef, lamb, slow-cooked beef, smoky barbecue and aged hard cheese. Its structure can stand up to rich, protein-heavy food.

These are suggestions, not rules. A very tannic young Cabernet may feel angular with a delicate dish, while a mature Cabernet may be more integrated. The best match depends on the recipe, sauce, seasoning and the particular bottle.

How to compare them at home

For a simple side-by-side tasting:

1. Serve both wines slightly below warm room temperature.
2. Use similar glasses and taste them before eating.
3. Look at colour, then smell for fruit, floral, herbal and oak characters.
4. Taste for acidity, body, tannin and finish separately.
5. Try each with food and notice which feels more balanced.
6. Check the labels for region, vintage, alcohol and blend information.

The comparison is most useful when you treat it as an experiment rather than a test. You may discover that you prefer Malbec’s fruit in one setting but Cabernet Sauvignon’s structure in another.