The reconstruction of the Early Iron Age ceramics firing from the Northern Black Sea region is a part of the project`s tasks of studying the ceramics of mobile and sedentary communities in the region (early nomads and the forest-steppe population). The ceramics firing process and the content of mineral phases were determined by DTA-TG methods. Data are given on five samples from the settlements of Glinjeni II-La Shanz and Subotiv, as well as the burials of Kasperovka, Pryshyb and Velykodolynske. In the paper mineralogical and phase composition of ceramic samples are revealed. It is established that the analyzed samples were burned at a temperature not exceeding 650 °C.