Margaret River produces some outstanding sauvignon blanc/semillon blends and if your penchant is for enjoying them when they are at their freshest and most vibrant then this is a wine that you should make the effort to track down. It is a crisp as the water from a mountain stream, as pungent as newly-baled hay and fruitier than an old-style English comedian. Imagine vibrant lifted aromas that leap out of the glass; lime citrus notes alongside hints of passionfruit and guava; and then throw in some brisk, refreshing acid. This blend of 55% sauvignon blanc and 45% semillon was been entirely fermented in stainless steel and is hopefully a harbinger of good things to come from the 2015 vintage out west. Drink now. It's spectacular value, too, at $20. www.rosabrook.com.au.