Abstract

About 50 samples of retail Czech wines from the South of Moravia (vintage years 2008 to 2015) were measured for δ<sup>18</sup>O 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<sup>18</sup>O up to date) with regional European wines and published data from the European wine databanks. The observed variability of δ<sup>18</sup>O 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 <sup>18</sup>O 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).

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