Wine vessels of every shape, size and design have been the crucial part of pottery in Georgia for millennia. Ancient artifacts attest to the high skill of local craftsmen. Among vessels, the most ubiquitous and unique to Georgian wine-making culture are probably the Kvevris, very large earthenware vessels with an inside coat of beeswax. Not only "kvevris" were used to ferment grape juice and to store up wine, but also "chapi" and "satskhao"; others yet were used for drinking, such as "khelada", "doki", "sura", "chinchila", "deda-khelada", "dzhami" and "marani".