Prokupac is a red Serbian wine

Serbian wine

There are nearly 70,000 hectares of vineyards in Serbia, producing about 425,000 tons of grapes annually. The majority of production is dedicated to local wineries....

 grape that is often used to produce darkly colored rosé. The grape is noted for the high sugar levels it can achieve prior to harvest

Harvest (wine)

The harvesting of wine grapes is one of the most crucial steps in the process of winemaking. The time of harvest is determined primarily by the ripeness of the grape as measured by sugar, acid and tannin levels with winemakers basing their decision to pick based on the style of wine they wish to...

 and the high levels of alcohol it can produce following fermentation

Fermentation (wine)

The process of fermentation in wine turns grape juice into an alcoholic beverage. During fermentation, yeast interact with sugars in the juice to create ethanol, commonly known as ethyl alcohol, and carbon dioxide...

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Synonyms

Prokupac is also known under the synonyms Crnka, Darchin, Kamenicarka, Kamenilarka, Kamenitscharka, Majski Cornii, Negotinsko Crno, Nichevka, Nikodimka, Nisevka, Procoupatz, Procupac, Prokoupatz, Prokupats, Prokupatz, Prokupec, Prokupka, Rekavac, Rekovacka Crnka, Rskavac, Rskavats, Rskavaty, Scopsko Cherno, Skopsko Crno, Skopsko Tsrno, Tsrnina, Zachinok, Zaichin, Zarchin, Zarcin, Zartchin, Zartchine.