Name (also vine water, vine blood) for the spring in response to the pruning leaking water-like sap. It is a protection mechanism in plants, because the juice contains highly effective disinfecting substances that prevent the ingress of bacteria prevent and seal the cuts with a resin plug. Plants added at the plant mostly during winter dormancy pruning But wounds begin only at the beginning of the vegetation expulsion to "bleed". Already in ancient Rome, the supposed medicinal effect of Rebtränen was known. The scholar Pliny the Elder (23-79) reported on the juice known as "Aqua vitis" or "Lachryma vitis" as a remedy for many skin diseases such as psoriasis and rashes, and mixed with olive oil as a depilatory.
In the Middle Ages, various vine products were used as a remedy, as well as the vine tears. The famous alternative practitioner Hildegard von Bingen (1098-1179) wrote about the positive effects of eye, ear and headache. Of the monks They were used as a means to prevent the regrowth of the plucked hair on the back of the head (tonsure). And the city doctor of Colmar (Alsace) Johann Jacob Wecker (1528-1586) recommended them as a remedy against the alcoholism "Nimb vine water, so outside the trimmed vine, mix it under the wine and give it to the wine addressee unreasonably to drink, so the pleasure in the wine vergött in the wine" . However, there is no scientific proof of its effectiveness. Today it also produces cosmetics such as facial creams. See also below Customs in viticulture and grapevine,
Image: © Weingut Steffens-Keß