Most conventional methods for producing low and reduced-alcohol wine involve the removal of alcohol from fully fermented wines with membrane or distillation techniques or partial fermentation. As reported by Pickering, Heatherbell, and Barnes (2001), many authors reported that the sensory quality of such products was not satisfactory. An alternative process was proposed (Pickering et al., 2001). This process involves the enzymatic removal of the glucose component of grape juice. These authors quantified the volatile compounds of such reduced-alcohol wines immediately after fermentation by GC–MS. They detected four compounds unique to the reduced-alcohol wine among which 2(5H)-furanone and 4-ethyl-cyclohexa-none. Surprisingly, these wines also appeared to have a higher concentration in esters. Some caution should be applied to interpret these results as analyses were done immediately after fermentation and wine esters are known to hydrolyse in the months after fermentation. As underlined by the authors, further sensory work is needed to elucidate the relationship between the chemical composition and the perceived quality of such products: