All Sclavos wines follow the same criteria: old-vine original rootstock bush vines are used irrespective of the cultivar, spontaneous yeast fermentation, unfined, unfiltered bottling and nominal sulphuring. The average yields in all of Sclavos wines rarely rise above 30 hl/ha with some going as low as 16 hl/ha.

The vines are not irrigated and benefit from the unique limestone terroir of the Robola Zone in eastern Cephalonia under the slopes of Mt. Ainos and the limestone, clay, and sandstone soils of the Paliki peninsula. Collectively these processes make for some of the most natural wines that Greece produces. The main goal of the winery is to produce wines that are inexorably linked to the terroir of Cephalonia, with fauna, flora, soil, and micro-climate all adding to the diverse influences on the vine and cultivars.