The aim of this paper is to present technological characteristics of the Vranac and Cabernet Sauvignon grapevine varieties in the conditions of the Trebinje vineyards during the vegetation in 2016 and 2017. Researching technological characteristics includes mechanical compounds of grapes and berries as well as the quality of grapes and berries (sugar, total acid content in the must and pH). Bunch weight, the number of berries on a bunch, the weight of 100 berries, the weight of 100 berries flesh, the weight of berries skin as well as the weight of 100 berries seeds were higher for both varieties in 2017. The bunch weight of Vranac was higher in 2016, and for Cabernet Sauvignon in 2017. Sugar content and acid content were higher in the must of the Vranac variety in 2016, while its pH value did not vary. The sugar content of the Cabernet Sauvignon variety was the same in both examined years, the content of acids was higher in 2016, while the pH value was higher in 2017.
