. Hardness of KC measured on the day of production was always lower than the values of this parameter on the 7th and 30th day (P < 0.05) regardless of the maturity degree of cheese. In the most of KC, hardness on the 30th day was slightly higher than that of the 7th day (P ≥ 0.05). Hardness of KC was always higher than those of the corresponding ES (made of cheese of the same maturity measured on the same day after the production; P < 0.05; Fig. 2).