Muscadelle, which you might know as a minor white Bordeaux variety, was one of the originally misidentified varieties planted in Australia. It wasn’t until 1976 that it was properly identified, after years of being recognized as a great variety to produced sweet white fortified wines. The Rutherglen Muscadelle (a.k.a. “Topaque”) is the youngest wine style in Chambers’ four-tier classification (Rutherglen, Classic, Grand, and Rare), exhibiting more primary aspects of the variety. For more of the naming backstory, “Topaque” was introduced in Australia in 2010 to replace “Tokay,” which was banned under EU labeling agreements, but it never caught on with consumers. Producers have since reverted to using the grape’s actual name, Muscadelle, for clarity and recognition.
The grapes were harvested late in the season to achieve maximum ripeness. Once the fruit was crushed and de-stemmed, the must was pressed and the juice was fortified with a neutral grape spirit to reach 18-19% alcohol. (If the sugar levels weren’t high enough, the grapes were sometimes soaked in the press overnight.) The resulting wine was then placed into large oak barrels for maturation, leaving single vintages and individual harvesting dates together as they tend to exhibit the same characteristics. After this first aging period, the wines were then graded to determine their final tier designation (Rutherglen, Classic, etc.) and then were blended in 225-5000L used oak casks and aged until bottling on demand with a cross flow filtration. No fining.