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,
California wine dubbed "Cal-Ital" reinvigorated the industry with new wine styles made from different varieties like Syrah, Viognier, Sangiovese and Pinot grigio. The Santa Cruz-based Bonny Doon Vineyard was one of the first wineries to promote these grape varieties in California actively. The large variety of wine grapes also encourages a large variety of wines. California produces wines made in nearly every single known wine style including sparkling, dessert and fortified wines. In the early 21st century, vintners have begun reviving heirloom grape varieties, such as Trousseau gris and Valdiguié. While Californian winemakers do craft wines in more "Old World" or European