Like many other traditional Portuguese grape varieties, Malvasia Preta is also in danger of extinction, abandoned by successive generations of winegrowers and winemakers. It is in the northeast of Portugal, in the Douro and Dão regions, where this variety maintains physical presence, occupying just under 2,000 hectares, with a tendency to announce a rapid decline. Regular in the flowering and post veraison phase and early in maturity, it sometimes has more than two weeks of advance in relation to the average of the red grape varieties of the region. Despite being a relatively rustic and robust variety, it is highly susceptible to rot and to mildew, as well as to “hen and chicken” (Some of the berries on the bunch, although fertilized, still do not develop properly).