Identifying the factors that control wine quality could be useful to improve wine production. Wines are currently scientifically differentiated using chemical analysis of flavours, for instance. But it is actually unknown whether observed differences in wine composition are caused by winemakers, e.g. during grape fermentation, or by soil and climate factors. Scientists González-Centeno et al. designed a method based upon soil, climate and landscape to link wine with their Appellation of Origin.
