Making Wine from Syrah/Shiraz Grapes

The History and Origins of Syrah/Shiraz

Syrah (known as Shiraz in Australia and parts of the New World) is one of the noblest and most powerful red wine grapes. For centuries, romantic legends linked the grape to the ancient Persian city of Shiraz or the Sicilian city of Syracuse, but DNA profiling in 1999 revealed a far less exotic origin. Syrah is a natural cross between Dureza, a dark-skinned grape from the Ardeche region, and Mondeuse Blanche, a white grape from Savoie. Both parents are obscure French varieties, placing Syrah's birthplace firmly in southeastern France, most likely in the northern Rhone Valley where the grape has been cultivated for centuries.

The Northern Rhone Heritage

The steep, granite hillsides of the northern Rhone Valley are the ancestral home of Syrah. The appellations of Hermitage, Cote-Rotie, Cornas, and Saint-Joseph produce some of the world's most revered wines from this grape. Northern Rhone Syrah is characterized by its combination of dark fruit, pepper, smoke, and floral aromatics, with firm tannins and extraordinary aging potential. These wines demonstrated early on that Syrah, when grown in the right conditions, is capable of reaching the pinnacle of fine wine quality.

Australia and the Shiraz Revolution

Syrah arrived in Australia in the early nineteenth century and was renamed Shiraz. The grape thrived in Australia's warm climate, and the Barossa Valley became its most celebrated New World home. Australian Shiraz tends to be richer, riper, and more opulent than northern Rhone Syrah, with flavors of blackberry jam, dark chocolate, and licorice. Penfolds Grange, crafted predominantly from old-vine Barossa Shiraz, became an international icon and proved that Australian Shiraz could rival the finest wines on earth. Today, Syrah/Shiraz is grown extensively in South Africa, Washington State, California, Chile, Argentina, and the southern Rhone Valley, where it plays a key role in blends.

Growing Conditions for Syrah/Shiraz

Climate Range

One of Syrah's great strengths is its adaptability to a wide range of climates, though the style of wine produced varies dramatically by region. In cool to moderate climates like the northern Rhone, Syrah produces wines of elegance, with peppery spice, violet aromatics, and structured tannins. In warm climates like the Barossa Valley, the grape yields powerful, full-bodied wines bursting with ripe dark fruit and sweet spice. Ideal growing temperatures range from 68 to 90 degrees Fahrenheit during the ripening season. The grape handles heat better than Pinot Noir but benefits from cool nights to maintain acidity and aromatic complexity.

Soil Preferences

Syrah produces its most celebrated wines on granite and schist soils in the northern Rhone, where the rocky terrain forces deep rooting and limits yields. The grape also performs well on sandy loam, clay, and limestone. Well-drained soils of moderate fertility are preferred, as overly fertile ground produces vigorous vines with diluted fruit. The vine is moderately vigorous and benefits from careful canopy management to ensure even ripening and air circulation.

Harvest Timing

Harvest Syrah when Brix levels reach 24 to 27 degrees, targeting a potential alcohol of 13.5 to 15 percent. The grape's thick skin and small berries concentrate sugars and flavors, so Brix can climb rapidly in warm weather. Aim for a pH of 3.4 to 3.7 and a titratable acidity of 0.55 to 0.75 grams per liter. Ripe Syrah berries should be deeply colored, with flavors of dark plum and blackberry and no green or herbaceous notes. The peppery character that defines cool-climate Syrah comes from a compound called rotundone, which develops late in the ripening cycle.

Winemaking Techniques for Syrah/Shiraz

Syrah is a rewarding grape for home winemakers, offering deep color, generous flavor, and the structural backbone for aging. It responds well to a range of winemaking approaches, from elegant and restrained to bold and powerful.

Crushing and Must Preparation

Destem and crush the grapes thoroughly. Unlike Pinot Noir, Syrah's thick skin and robust tannins tolerate more aggressive crushing without producing harsh wines. Some winemakers include a small percentage of whole clusters (10 to 30 percent) to add complexity and aromatic interest, a technique inspired by the great northern Rhone producers. Add 30 to 50 parts per million of sulfite after crushing and check the must chemistry. Syrah musts from warm climates can have high pH levels, so acidification with tartaric acid may be necessary.

Yeast Recommendations

Syrah responds beautifully to a variety of yeast strains. Lalvin ICV-D254 is an excellent all-purpose choice, producing wines with rich color, complex aromatics, and polished tannins. Lalvin RP15 (formerly Rockpile) was specifically isolated from Syrah vineyards and excels at enhancing the grape's spicy, dark-fruit character. Red Star Premier Rouge is a reliable, clean-fermenting option. Lalvin BM45 enhances mouthfeel and body, making it a strong choice for full-bodied Shiraz-style wines. For cooler-climate Syrah with peppery character, Enartis Ferm ECA5 preserves varietal aromatics beautifully.

Fermentation and Extraction

Ferment Syrah at 75 to 88 degrees Fahrenheit. Higher fermentation temperatures suit the grape's robust character and extract maximum color and tannin. Perform punch-downs two to three times daily during active fermentation. Syrah's thick skins can support extended maceration of 14 to 28 days without becoming excessively tannic, making it an excellent candidate for post-fermentation skin contact. This extended maceration allows tannins to polymerize and soften, producing a smoother, more integrated wine.

Co-Fermentation with Viognier

A distinctive technique borrowed from Cote-Rotie is the co-fermentation of Syrah with a small percentage of Viognier (a white grape). Adding 3 to 7 percent Viognier to the Syrah must during fermentation has a remarkable effect: the Viognier contributes anthocyanin-binding compounds that actually deepen the wine's color while adding intoxicating floral aromas of apricot and white flowers. This technique produces wines of extraordinary aromatic complexity without diminishing Syrah's power.

Pressing and Malolactic Fermentation

Press the wine after maceration is complete. Syrah produces generous quantities of both free-run and press wine. The press fraction is typically deeply colored and tannic, and blending some back adds structure. Inoculate for malolactic fermentation using VP41 or CH16. Malolactic fermentation is standard for Syrah and contributes to the wine's characteristic roundness and complexity. Keep temperatures above 64 degrees until the process completes.

Flavor Profile and Aging Potential

Cool-Climate Syrah vs. Warm-Climate Shiraz

The flavor profile of Syrah/Shiraz varies dramatically by climate. Cool-climate Syrah (northern Rhone, parts of Washington State, cool sites in South Africa) typically exhibits flavors of black pepper, smoked meat, olive, violet, and dark plum, with firm tannins and bracing acidity. Warm-climate Shiraz (Barossa Valley, McLaren Vale, parts of California) tends toward blackberry jam, dark chocolate, espresso, licorice, and sweet baking spices, with plush tannins and generous body. Both styles are capable of exceptional aging.

Oak Aging Strategies

Syrah/Shiraz benefits significantly from oak aging. For a northern Rhone-inspired style, use French oak for 12 to 18 months, incorporating both new and used barrels for complexity without excessive oak flavor. For a bold Barossa-style Shiraz, American oak for 12 to 24 months adds sweet vanilla, coconut, and mocha notes that complement the wine's opulent fruit. Home winemakers can use medium to heavy-toast oak alternatives at approximately 1 to 2 ounces per gallon, tasting regularly to achieve the desired balance.

Food Pairings for Syrah/Shiraz

Ideal Pairings

Syrah's bold flavors and firm structure make it a natural partner for richly flavored, hearty dishes. Grilled lamb with rosemary, barbecued brisket, venison steaks, and braised oxtail are outstanding matches. The wine's peppery character pairs beautifully with black pepper-crusted steak and dishes featuring smoked or charred elements. Hard, aged cheeses like aged cheddar and Manchego complement the wine's tannins. Middle Eastern and North African cuisine, with its complex spice blends, cumin, and grilled meats, creates particularly harmonious pairings.

Shiraz-Specific Pairings

Richer, fruit-driven Shiraz styles pair wonderfully with barbecue, particularly smoky ribs and pulled pork. Australian Shiraz with dark chocolate desserts is a decadent combination that exploits the wine's natural affinity for cocoa flavors.

Blending with Syrah/Shiraz

Traditional Rhone Blends

In the southern Rhone, Syrah is blended with Grenache and Mourvedre in the classic GSM blend (Grenache-Syrah-Mourvedre). This combination leverages each grape's strengths: Grenache provides generosity and alcohol, Syrah contributes color, structure, and spice, and Mourvedre adds earthiness and tannin. For home winemakers, even a two-variety Syrah-Grenache blend can produce outstanding results.

Australian Blending Traditions

Australia has its own distinctive blending tradition, with Shiraz-Cabernet Sauvignon being a particularly successful combination that combines Shiraz's richness with Cabernet's structure and aromatic complexity.

Frequently Asked Questions

What is the difference between Syrah and Shiraz?

Syrah and Shiraz are the same grape variety. Syrah is the traditional French name, used in France, the United States, and much of Europe. Shiraz is the name used in Australia, South Africa, and some other New World regions. The name also sometimes signals a stylistic difference: Syrah typically implies a more restrained, peppery, elegant style, while Shiraz suggests a richer, bolder, more fruit-driven wine.

What is the best yeast for Syrah/Shiraz?

Lalvin ICV-D254 is an excellent all-around choice for Syrah, producing complex, well-structured wines. Lalvin RP15 was isolated from Syrah vineyards and excels at enhancing the variety's spicy character. Lalvin BM45 is recommended for winemakers seeking maximum body and mouthfeel in a full-bodied Shiraz style.

What fermentation temperature should I use for Syrah?

Ferment Syrah at 75 to 88 degrees Fahrenheit. Higher temperatures within this range extract more color and tannin, suiting bold, powerful styles. Slightly cooler fermentation preserves more delicate aromatics like pepper and violet, suiting an elegant, northern Rhone-inspired style.

Should I co-ferment Syrah with Viognier?

Co-fermenting with 3 to 7 percent Viognier is a traditional technique from Cote-Rotie that enhances color stability and adds floral complexity. It is particularly effective with cooler-climate Syrah. If you try this technique, add the crushed Viognier grapes directly to the Syrah must at the start of fermentation.

How long should Syrah age before drinking?

Most homemade Syrah benefits from 12 to 24 months of aging before drinking, including time in oak. Well-structured examples can improve for 10 to 20 years or more in the bottle. Warmer-climate Shiraz styles tend to be more approachable young, while cooler-climate Syrah often needs several years to fully open up and reveal its complexity.

Can I make a GSM blend at home?

Absolutely. A Grenache-Syrah-Mourvedre blend is one of the most rewarding projects for a home winemaker. Traditional proportions vary widely, but a common starting point is 50 percent Grenache, 30 percent Syrah, and 20 percent Mourvedre. Ferment each variety separately, then blend after malolactic fermentation to find the combination that tastes best to your palate.

What causes the peppery flavor in Syrah?

The distinctive black pepper aroma in Syrah comes from a compound called rotundone. This compound is most concentrated in grapes grown in cool climates and develops late in the ripening season. Warm-climate Shiraz has lower rotundone levels, which is why it tastes more of dark fruit and chocolate than pepper.

How much wine will I get from Syrah grapes?

Expect approximately one gallon of finished wine per 15 to 17 pounds of Syrah grapes. Syrah's small berries and thick skins mean that the juice-to-skin ratio is lower than many other varieties, but the resulting wine is deeply colored and concentrated.