product_certification lacryma christi
___MASK29___ ( DOC ) ( English : controlled designation of origin ) is a quality assurance label for Italian wines . The system is modeled on the French " Appellation d ' origine contrôlée " ( AOC ) designations . The Italian government introduced the system in 1963 and overhauled in 1992 to comply with European Union law on protected geographical designations of origin , which came into effect that year . Lacryma Christi , ( also Lachryma Christi of Vesuvius , literally `` tears of Christ '' ) , is the name of a celebrated Neapolitan type of wine produced on the slopes of Mount Vesuvius in Campania , Italy . White Lacryma Christi is made mainly from Verdeca and Coda di Volpe grapes , with smaller proportions of Falanghina , Caprettone and Greco di Tufo included . Red Lacryma Christi is made from Piedirosso and Sciascinoso grapes . It is also , as archaeologists have discovered , the nearest equivalent to wine drunk by the Ancient Romans , having analysed microscopic residue left on the taps of the casks . An appellation is a legally defined and ___MASK95___ used to identify where the grapes for a wine were grown ; other types of food often have appellations as well . Restrictions other than geographical boundaries , such as what grapes may be grown , maximum grape yields , alcohol level , and other quality factors , may also apply before an appellation name may legally appear on a wine bottle label . The rules that govern appellations are dependent on the country in which the wine was produced . Verdeca is a white Italian wine grape variety that is primarily grown in the Colli Piacentini region of Emilia - Romagna in central Italy and Apulia in southern Italy where ampelographers believe that the grape may have originated . In Apulia , it is one of the main grapes in the " ___MASK29___ " wines of Locorotondo DOC and Martina Franca DOC along with Bianco d ' Alessano . In Campania , it is grown on the slopes of Mount Vesuvius where it used as a blending variety with Falanghina , Coda di volpe and Greco in both the white wines and the sweet dessert wine of the region , Lacryma Christi . It is also a minor component used in the some vermouth production . Wine ( from Latin " vinum ") is an alcoholic beverage made from fermented grapes . These grapes are generally " Vitis vinifera ," or a hybrid with " Vitis labrusca " or " Vitis rupestris ". Grapes are fermented without the addition of sugars , acids , enzymes , water , or other nutrients . Yeast consumes the sugar in the grapes and converts it to ethanol and carbon dioxide . Different varieties of grapes and strains of yeasts produce different styles of wine . These variations result from the complex interactions between the biochemical development of the grape , the reactions involved in fermentation , the terroir , and the production process . Many countries enact legal appellations intended to define styles and qualities of wine . These typically restrict the geographical origin and permitted varieties of grapes , as well as other aspects of wine production . The Colli Piacentini (" Hills of Piacenza ") is an Italian wine region located at the western end of Emilia - Romagna . In 1967 , it was given the " ___MASK29___ " ( DOC ) quality designation . Within its boundaries are several smaller DOCs including Colli Piacentini Gutturnio , Monterosso Val D ' Arda DOC , Trebbianino Val Trebbia DOC and Val Nur del Colli Piacentini DOC . The region has a long history of winemaking with fossilized vine roots and grape seeds excavated from the region showing viticulture taking place as early as 2000 BC . In Roman times , Julius Caesar ' s father - in - law Lucius Calpurnius Piso Caesoninus , grew grapes in the Piacenza hills .