Grenache vs Mourvèdre: The G and the M in Your GSM

Grenache and Mourvèdre are two-thirds of a GSM, the Grenache Shiraz Mourvèdre blend that is South Australia’s answer to the southern Rhône. They are both Spanish by birth, both love heat, and both spent a century in Australia as anonymous fortified-wine grapes before anyone put their names on a label. Beyond that they could not be more different. Grenache is the fruit and the perfume; Mourvèdre, which Australians usually call Mataro, is the muscle and the funk. Here is what each one brings and what they taste like on their own.

Table of Contents
  1. The short version
  2. Grenache: the fruit
  3. Mourvèdre: the muscle
  4. Why they are blended
  5. What to buy
  6. What to eat with them
  7. Frequently asked questions

The short version

GrenacheMourvèdre (Mataro, Monastrell)
OriginSpain (Garnacha), AragonSpain (Monastrell), the Mediterranean coast
ColourPale to medium; fades fastDeep, dark
Smells ofRaspberry, strawberry, white pepper, dried herbsBlackberry, game, leather, earth, black pepper, sometimes a barnyard note
BodyMedium, silkyFull, chewy
TanninLow to medium, fineHigh, firm
AlcoholHigh; 14.5 per cent and up is normalHigh, but it hides it better
RipensLateLater still; needs the hottest sites
Role in a GSMThe fruit, the perfume, the softnessThe colour, the tannin, the savoury depth
Famous on its own inChâteauneuf-du-Pape, Priorat, McLaren Vale, BarossaBandol, Jumilla, Barossa
Serve at14 to 16°C; a light chill suits it16 to 18°C

Grenache: the fruit

Grenache is a big, thin-skinned grape from Aragon in north-east Spain that spread along the Mediterranean and into the southern Rhône, where it is the main grape of Châteauneuf-du-Pape. It makes a wine that is pale, fragrant and full of red fruit, raspberry and strawberry, with white pepper and dried herbs, and it carries alcohol without tasting hot. Its tannin is soft and its acid is low, so it is silky rather than grippy. On its own it can taste like a warm-climate Pinot Noir; in a blend it fills in the middle and makes everything friendlier. For most of the twentieth century Australia grew it by the hectare for fortified wine and cheap blends, then pulled it out when tastes changed. The vines that survived, some more than a century old and never irrigated, now make some of the country’s most exciting reds, especially in McLaren Vale and the Barossa. Our McLaren Vale guide tells that story.

Mourvèdre: the muscle

Mourvèdre is a small, thick-skinned, late-ripening grape from the Spanish coast, where it is called Monastrell and is still the country’s fourth most planted red. The French call it Mourvèdre and make it the backbone of Bandol, on the coast east of Marseille, where the reds must be at least half Mourvèdre. Australians and Californians call it Mataro. It needs, in the old saying, its face in the hot sun and its feet in the water: serious heat to ripen, and a water table or irrigation so it does not shut down. The wine is dark, tannic and full, with blackberry fruit under layers of game, leather, earth and black pepper, and a wild, almost meaty edge that people either love or find a bit much. In a blend it gives colour, grip and depth; on its own it needs food and a few years.

Close-up view of Grenache grapes on the left and Mourvèdre grapes on the right hanging on vines in a vineyard.

It came to Australia in James Busby’s 1830s cuttings and was planted by the Lutheran settlers of the Barossa, and some of the oldest continually producing Mataro vines anywhere are in the Barossa, the Riverina and the Riverland. Like Grenache, it was a fortified-wine workhorse that has been rediscovered.

Why they are blended

Each one fixes the other. Grenache is pale, soft and high in alcohol; Mourvèdre is dark, tannic and savoury. Put them together with Shiraz for the middle and you get a wine with colour, fruit, structure and perfume that none of the three has alone. That is the southern Rhône formula, and it is why GSM is the Barossa’s and McLaren Vale’s most useful red: cheaper than straight Shiraz, more interesting, and ready sooner. The share of each grape tells you the style. Grenache-led blends are lighter and prettier; Mourvèdre-heavy ones are darker and more serious.

What to buy

Grenache prices are Dan Murphy’s shelf prices on 9 September 2026 and will move about; BWS stocks many of the same names. Mourvèdre is named without prices because so little of it is sold on its own.

Two glasses of red wine on a wooden table with grape clusters and vine leaves, set against a blurred vineyard background.
WinePrice bandWhy
d’Arenberg The Stump Jump GSMAbout $14The cheapest honest GSM in the country
d’Arenberg d’Arry’s Original Grenache ShirazAbout $16 to $20McLaren Vale’s classic blend since the 1950s
d’Arenberg The Custodian GrenacheAbout $20Old-vine Vale Grenache on its own, at a fair price
Chapel Hill Vinedresser GrenacheAbout $25The fragrant modern style
Oliver’s Taranga GrenacheAbout $33Sixth-generation family; one of the Vale’s best
A Barossa Mataro (Hewitson Old Garden, Turkey Flat, Yalumba, Teusner)Dan Murphy’s or an independentOld-vine Mourvèdre on its own; dark, savoury, worth knowing
A Bandol (Domaine Tempier, Château de Pibarnon)Dan Murphy’s or an independentThe world benchmark for Mourvèdre; expensive and worth it once
A Jumilla Monastrell from SpainDan Murphy’s or an independentThe cheap way to taste the grape; ripe, dark, generous

Our Grenache guide and Mourvèdre guide cover each grape in full.

Heads up: the boxes below link to Just Wines, our partner shop. If you buy through them we earn a small commission at no extra cost to you. Prices were checked when this was written and move about.

Honesty corner: the partner shop had no straight Mataro when we checked. The Grenache side, and the blend that has both:

Murray Street Wines Greenock Estate Barossa Valley Grenache 2020
🍷 Old-vine Grenache

Murray Street Wines Greenock Estate Barossa Valley Grenache 2020

What we love
  • Barossa Grenache from vines planted in 1948 and 1970 at Greenock
  • Varietal purity and structure from ancient soils
  • About twenty-five dollars, well under its sixty-dollar full price at the time of writing
What we'd change
  • A 2020, so drink it in the next couple of years
Check price at Just Wines → →
Sherrah South Australia Preservative Free Grenache 2025
🍷 The modern Grenache

Sherrah South Australia Preservative Free Grenache 2025

What we love
  • Small-batch, preservative-free Grenache from a McLaren Vale winemaker
  • The modern, fragrant style; serve it a little cool
  • About twenty-five dollars
What we'd change
  • Preservative-free; drink it young
Check price at Just Wines → →
Fox Creek Postmaster McLaren Vale GSM 2021
🍷 The GSM

Fox Creek Postmaster McLaren Vale GSM 2021

What we love
  • Old-vine Grenache, Shiraz and Mourvèdre from a McLaren Vale family estate
  • The region's classic blend from the excellent 2021 vintage
  • About twenty-nine dollars
What we'd change
  • A blend, so the Mataro is a supporting act
Check price at Just Wines → →

For a straight Mataro, BWS and Dan Murphy’s carry Barossa versions from Hewitson, Turkey Flat and Yalumba when they have them in.

What to eat with them

Grenache is the flexible one: roast chicken, pork, duck, charcuterie, mushroom risotto, a mild curry, and it is one of the few reds that suits a light chill on a hot day. Mourvèdre wants richer, meatier food to soften it: slow-cooked lamb, beef stew, game, sausages off the grill, a strong cheese. A GSM sits in between and is the safest red for a barbecue with mixed food. Serve Grenache at 14 to 16°C and Mourvèdre a little warmer.

Frequently asked questions

Is Mataro the same as Mourvèdre?

Yes. Mourvèdre is the French name, Monastrell the Spanish, and Mataro the name used in Australia, Portugal and California. One grape, three names.

What does GSM stand for?

Grenache, Shiraz (Syrah) and Mourvèdre, the three grapes of the southern Rhône blend, which the Barossa and McLaren Vale have made their own.

Which is lighter, Grenache or Mourvèdre?

Grenache, by a long way. It is pale, soft and red-fruited. Mourvèdre is dark, tannic and savoury.

Why is Grenache so high in alcohol?

It ripens late and builds sugar fast in warm places, so 14.5 to 15.5 per cent is normal. The soft tannin and red fruit stop it tasting hot.

Why is old-vine Grenache special?

Old, dry-grown vines give small crops of intense fruit, and Australia has some of the oldest Grenache vines in the world because nobody bothered to pull them out. Made lightly, the wine is fragrant, spicy and silky rather than jammy.

What is Bandol?

A small region on the French Mediterranean coast whose reds must be at least half Mourvèdre. It is the world’s benchmark for the grape: dark, savoury, long-lived, and one of France’s best rosés as well.