Primary aromas are those that pre-exist inside the grape and are revealed during fermentation. They give each grape variety an olfactory characteristic. For example, Sauvignon has a primary aroma that recalls boxwood in the wines of Bordeaux; Cabernet Sauvignon expresses blackcurrant bud or licorice sticks. Merlot evokes strawberry. Primary aromas usually evoke floral, fruity, or vegetable notes.