Syrah also make a full-bodied sparkling dry Shiraz, which contains the complexity and sometimes earthy notes that are normally found in still wine. Due to their concentrated flavours and high tannin content, many premium Syrah wines are at their best after some considerable bottle aging. In exceptional cases, this may be 15 years or longer. Syrah has one of the highest recommended wine serving temperatures at 18 °C (65 °F). Wines made from Syrah are often powerfully flavoured and full-bodied. The variety produces wines with a wide range of flavor notes, depending on the climate and soils where it is grown,
Syrah University of California, Davis used DNA typing and extensive grape reference material from the viticultural research station in Montpellier, France to conclude that Syrah was the offspring of the grape varieties Dureza (father) and Mondeuse blanche (mother). Dureza, a dark-skinned grape variety from the Ardèche region in France, has all but disappeared from the vineyards, and the preservation of such varieties is a speciality of Montpellier. Mondeuse blanche is a white grape variety cultivated in the Savoy region, and is still found in small amounts in that region's vineyards today. Both varieties are somewhat obscure today, and have never achieved