Purpose: This study evaluated the surface hardness and the fracture toughness of two hybrid ceramic material (Lava Ultimate and Vita Enamic) after storage in different pH media (coca cola, coffee and artificial saliva).Materials and methods: Forty-two ceramic specimens were constructed. The ceramic specimens were divided into two equal groups according to the ceramic type (either lava ultimate or vita Enamic). Then, these two groups were further divided into three equal groups according to the storage media forming total of six groups (n=7). Subgroup 1 immersed in coca cola, subgroup 2 immersed in coffee, subgroup 3 immersed in artificial saliva. Testing was performed before and after storage for 2 months. Data were presented as means and standard deviation One way ANOVA followed by pair-wise Tukey’s post-hoc tests were performed to detect significance between subgroups. Student t-test was done between ceramics. P values ≤0.05 are considered to be statistically significant in all tests. Results: Vita Enamic recorded significantly higher hardness results over Lava Ultimate before ageing. In Vita Enamic, there was statistically significant loss of hardness after ageing. Vita Enamic recorded significantly higher fracture toughness results over Lava Ultimate before ageing. In Vita Enamic, there was statistically significant loss of fracture toughness after ageing .Conclusions: Vita Enamic has higher surface hardness and fracture toughness values when compared to Lava Ultimate in different pH media. Ageing in different pH media negatively affected both the surface hardness and the fracture toughness for both Lava Ultimate and Vita Enamic. This study suggests that Vita Enamic is more appropriate than Lava Ultimate for the construction of esthetic posterior restorations in terms of fracture toughess and surface hardness.