Trentham has three separate vineyards of Sauvignon Blanc, an older site planted in the early 1990s and two younger blocks of select clonal stock. The older site is low yielding, producing wines with more body. The younger vineyards produce wines with more varietal lift and definition. Vintage is determined by ripeness, healthy acids and the desired levels of baume. Immediately following harvest, grapes are destemmed and crushed. The musts are chilled and moved through the press for a term of cold settling, clarified juices are cold fermented with a select yeast over a course of three weeks. Upon completion, batches are treated to a relaxed settle before racking and assemblage into the final wine.