Summary: Intense aromas of blackcurrant and red fruit characterize the sensory profile of some red wines that are very much appreciated by consumers. Over the last decade, researchers have shown that varietal thiols such as 4MMP, 3MHA and 3MH, first identified in Sauvignon blanc, are volatile aromatic compounds responsible for and/or contributing to the expression of these aromas in red wines. Consequently, research on the expression of varietal thiols in red grape varieties is a