Stacked proton one-dimensional Nuclear Magnetic Resonance spectra (¹H-NMR) with improved water-to-ethanol multipresat. Scheme [5] of Mexican monovarietal Merlot wines, with different aging schemes (samples 1 to 11, refer to Materials and Methods). NMR signature of Mexican Merlot from Queretaro Region (Finca Sala Vivé / Freixenet) present signal assignment of relevant metabolites, with excellent agreements with respect foreign Merlot noir genotypes' NMR fingerprints in plant metabolomics databases [15].