The 18O/16O ratio of retail moravian wines from the Czech Republic in comparison with European wines

Abstract

About 50 samples of retail Czech wines from the South of Moravia (vintage years 2008 to 2015) were measured for δ18O values in wine water together with more than 60 European wines. The aim of the study was to compare Moravian wines (not measured for δ 18O up to date) with regional European wines and published data from the European wine databanks. The observed variability of δ 18O values with vintage year corresponds to the variability of German wines from the Rhine region. We did not observe any significant admixture of must from other regions. The method of 18O measurement appears to be very sensitive to small differences in the climate of the region (comparison of South Moravia and the near Malé Karpaty region).