At each session, between 15 and 18 samples are blind tasted, commented on and scored. During the tasting period, wine from each plot is carefully referenced, tasted at least two or three times and given a mark out of 20. By the end of December, the tasting committee establishes what Krug calls a "character sketch" of the year and begins tasting the 150 reserve wines from which it will draw the missing elements needed to re-create the character of Krug Grande Cuvée year after year.