A rocking example of the barrel-fermented style that is opening eyes in Marlborough and beyond, the 2015 Envoy Sauvignon Blanc Johnson Vineyard was made and remained in seasoned oak for up to ten months. It's got a patina of pencil shavings as a result, some faintly herbal notes and a core of white grapefruit that drives through the lengthy finish. Unlike most Marlborough Sauvignon Blancs, it should keep well for up to 7 years from the vintage.