Orange wine is made using the maceration vinification technique. To make a white wine, after the harvest, the grapes are pressed directly to recover the juice. This technique produces a clear, slightly tinted juice, since the grape must and the solid particles of the grapes are not in contact. In contrast, to make orange wine, the must comes into contact with the skins, pulp and seeds of the grapes, and sometimes even with the stalks. The maceration period varies from a few weeks to two years.
Also known as 'long pellicular maceration', this vinification method brings the must into contact with the solid parts, which are rich in tannins, phenols and natural pigments (anthocyanins, flavonoids and polyphenols). Considered undesirable when making white wines, these elements are essential for red wines, as they give them their colour, texture and flavour. Orange wine, a maceration wine, has some of the characteristics of red wine, such as intense aromas and a more pronounced colour, due to the presence of tannins.
Traditionally, the must in Georgia is fermented in clay jars. Although these containers are still widely used, many winemakers opt for fermentation in oak barrels or vats. As far as grape varieties are concerned, local varieties such as Kisi or Rkatsiteli are used to produce orange wine in Georgia. Other varieties are used in other countries, such as Muscat, Chardonnay and Gewürztraminer..