OENO One has published research examining whether older Riesling vines produce grapes with inherently superior chemical characteristics compared with younger vines. Scientists studied an experimental vineyard in Germany’s Rheingau region containing vines planted in 1971, 1995 and 2012, comparing grape composition across three vintages while controlling for environmental and planting variables. The youngest vines generally accumulated higher concentrations of certain aroma-related compounds, while mature and older vines displayed remarkably similar results across most measured characteristics. The findings suggest that changes in grape composition are most pronounced during the transition from young to mature vines, rather than increasing continuously with age. Although the research does not directly establish differences in finished wine quality, it challenges assumptions that greater vine age automatically improves the chemical potential of wine grapes.